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Print the calibration sheet
Print at 100% (Actual size). Turn off "Fit to page". Check the printed ruler reads 160 mm.
We'll text you a one-time code on WhatsApp — no password to remember.
Free accounts get 3 scans a day, saved history, and shareable branded reports.
Shown on your reports if you choose to include it. you can hide it per report.
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What looks off?
whole grain broken grain
RICECALIPER VERIFIED REPORT
| # | Length mm | Width mm | L/W | Area mm² | Class | Status |
|---|
No reports match these filters.
Each line is the share of that report's grains at each length.
Optional. Kept on your account.
To change your number, please contact us. Contact us
Your QC staff can log in with their own number. Their scans count in your allowance and appear in your reports.
Name a spec after a buyer and set the limits they care about. Reports can then be checked against it.
Names are matched ignoring capitals and spacing. If two names are really one party, merge them so their history stays together.
Share this link with someone who could use RiceCaliper. You see how many people open it, join, scan and subscribe. Only counts are shown, never who they are.
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Coming soon. we're writing up the calibration methodology and validation approach behind RiceCaliper's measurements.
Questions, a demo, or the Business plan. We usually reply within 2-3 working hours.
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Last updated: November 4, 2026
RiceCaliper is operated by Himanshu AgriTech Ventures, a proprietorship based in India ("RiceCaliper", "we", "us", or "our").
We respect your privacy and are committed to handling your information responsibly. This Privacy Policy explains what information we collect when you use RiceCaliper, how we use it, how we protect it, and the choices available to you.
By creating an account or using RiceCaliper, you acknowledge the practices described in this Privacy Policy.
We collect information that is necessary to provide and improve RiceCaliper.
Account information. When you create an account, we collect your name, mobile number, and the one-time codes (OTP) we send to your WhatsApp to sign you in. There is no password. If your plan allows additional users, we also collect the name and mobile number of each person the account owner adds. You may also choose to provide your email address, company or business name, business address, and GSTIN. Company, address, and GSTIN information may be used for generating invoices and maintaining appropriate business records.
Rice sample images and analysis data. When you use RiceCaliper to analyse a rice sample, the image you submit is uploaded to our servers for processing. Depending on the features available in your version of RiceCaliper, we may generate and store rice grain counts, whole and broken grain measurements, grain dimensions, chalky or discoloured grain information, other quality characteristics, analysis results and reports, sample or batch information you enter, and dates, times, remarks, or other information associated with an analysis. Your historical analyses and reports may remain available in your RiceCaliper account so that you can review them later.
Devices. To apply the device limit of your plan, we record a random identifier your browser keeps, a short description of the device (for example "Chrome on Android"), and when it was first and last used. You can see your devices and remove them from your Account page.
Changing your mobile number. If you need to change the mobile number you log in with, contact us and we will do it after checking the request. Your reports and history stay with your account. We keep a record of the previous number and the date of the change, for security and support.
Referral links. If you arrive through a RiceCaliper referral link or a shared report link, we record which link brought you so that sign-ups, first scans and payments can be credited to the person who shared it. To count each person once, and to recognise when someone opens their own link, we also record a browser fingerprint: a one-way code calculated from your browser's settings, such as its type, language, time zone, screen size and how it draws text. We store only that code, never the settings themselves, and use it only for referral counting. Shared reports do not show who referred whom.
On your phone. Scans taken without a signal, or in quick-scan mode, are kept on your device until they upload. Documents or photos you attach to a report are private to your account unless you choose to show them on the shared link.
Calibration sheet downloads. RiceCaliper's printed calibration sheet carries a unique identifier. When you download a calibration sheet, we record that identifier together with your account (or, if you are not signed in, an anonymous device identifier) and the date of download, so that a later analysis can be linked back to the specific printed sheet it was taken on. This is used for quality and troubleshooting purposes only — for example, to identify a specific printed sheet if it is damaged or defective — and is not used to determine who physically took a photograph, since a printed sheet may be shared, reused, or handed to someone else after it is downloaded.
Payment information. Payments made through RiceCaliper are processed by Razorpay. Razorpay also issues the invoices and receipts for your subscription payments. We do not store your complete card, bank account, UPI, or other payment credentials on our own servers. Payment information may be handled and, where supported, securely stored by the payment service provider according to its own policies and terms.
We may use the information we collect to:
RiceCaliper uses computer-vision and AI-based technology to analyse rice samples. To continuously improve the accuracy of our analysis, rice-sample images submitted to RiceCaliper may be retained and used to improve our analysis algorithms and models.
For example, if our system incorrectly identifies a rice grain, misses a grain, or identifies a fragment or other object as a grain, the relevant data may be used to improve the system and reduce similar errors in the future. This means that your submitted rice-sample images may contribute to improving RiceCaliper's technology over time.
We do not sell individual rice-sample images to third parties.
We understand that rice analysis results, sample information, quality measurements, and related business information may be commercially confidential. We do not sell or publicly disclose your individual analysis reports or business data.
Authorised RiceCaliper personnel may access account, analysis, or sample information when reasonably necessary to:
We take reasonable steps to limit such access to legitimate business purposes.
We may create and use aggregated, statistical, or anonymised information derived from the use of RiceCaliper, such as trends by rice variety, geographic or state-level trends, quality characteristics and trends, statistical analysis of rice samples, and general usage and product-performance trends. Such information is designed so that it does not identify a particular customer or individual.
We may use, publish, share, license, or commercially use aggregated and anonymised information for purposes including research, analytics, benchmarking, industry insights, product development, and other legitimate business purposes.
We do not sell your personal information or individual rice-sample images to third parties.
We may share information with trusted service providers when necessary to operate RiceCaliper, including for cloud hosting and infrastructure, payment processing, OTP and WhatsApp communications, analytics, and security and technical operations. For example, RiceCaliper uses Razorpay for payment processing, Twilio for WhatsApp communications, and Google Analytics for website and service analytics.
We may also disclose information where reasonably necessary to:
RiceCaliper uses third-party communication services to send OTPs and other service-related messages through WhatsApp. Your mobile number may therefore be shared with the relevant communication service provider for the purpose of delivering these messages. RiceCaliper does not use your mobile number to sell or distribute your personal information to unrelated third parties.
RiceCaliper's website and application may use cookies, session technologies, and similar technologies to keep you signed in, maintain your session, remember necessary settings, improve security, understand how users interact with the service, and improve website and product performance.
We use Google Analytics to understand website and product usage. Analytics information may include pages viewed, interactions, device or browser information, approximate geographic information, and other usage information.
You can control cookies through your browser settings. Disabling certain cookies may affect some RiceCaliper features.
We take reasonable technical and organisational measures to protect information against unauthorised access, alteration, disclosure, loss, or misuse. However, no internet-based service can guarantee absolute security. You are also responsible for keeping the phone and WhatsApp account you use to log in secure, since a code sent there signs in to your RiceCaliper account, and for notifying us if you believe your account has been accessed without authorisation.
We retain information for as long as reasonably necessary to provide RiceCaliper, maintain your account and analysis history, improve our services, meet contractual obligations, resolve disputes, prevent fraud, and comply with applicable legal, tax, accounting, or regulatory requirements. Rice sample images and analysis data may be retained for product and model improvement purposes.
When you delete a report, it is removed from your account and from your reports list, and any link you shared stops showing it and says the report was deleted. The rice-sample image and analysis data may still be kept on our systems for product and model improvement, as described in section 3, and for security and record-keeping. Archiving a report only hides it from your main list and from trends; you can restore it.
You may delete individual reports or other data where the relevant RiceCaliper feature allows you to do so. Certain information, including information required for legal, tax, accounting, payment, fraud-prevention, or regulatory purposes, may need to be retained even after you request deletion of your account.
You may request deletion of your RiceCaliper account and associated data by contacting us at [email protected].
When we receive a valid deletion request, we will take reasonable steps to delete the data associated with your account, subject to information that we are required or permitted to retain under applicable law or for legitimate legal, accounting, tax, security, or fraud-prevention purposes. For example, certain mobile-number, GST, invoice, and payment-related records may need to be retained for legal or accounting purposes.
Deletion of your account may mean that you can no longer access your previous reports or use certain RiceCaliper services associated with that account.
RiceCaliper is designed for business and professional users and is not intended for use by children. We do not knowingly collect personal information from children for the purpose of providing a child-oriented service. If you believe that a child has provided personal information to us without appropriate authorisation, please contact us at [email protected].
RiceCaliper relies on certain third-party services to operate and improve the platform. These providers may process information in accordance with their own privacy policies and terms. Our current service providers may include:
We encourage users to review the privacy policies of relevant third-party providers where appropriate.
We may update this Privacy Policy from time to time to reflect changes to RiceCaliper, our practices, technology, or applicable legal requirements. When we make material changes, we may provide appropriate notice through the RiceCaliper website, application, email, or other suitable communication channels. The "Last updated" date at the top of this Privacy Policy indicates when the policy was most recently revised.
If you have questions, concerns, requests, or complaints regarding this Privacy Policy or the way your information is handled, please contact us at:
Himanshu AgriTech Ventures
Email: [email protected]
We will make reasonable efforts to review and respond to privacy-related requests within a reasonable period.
Last updated: November 3, 2026
RiceCaliper is operated by Himanshu AgriTech Ventures, a proprietorship based in India ("RiceCaliper", "we", "us", or "our").
These Terms & Conditions ("Terms") govern your access to and use of the RiceCaliper website, application, software, analysis services, reports, and related services (collectively, the "Service").
By creating an account, accessing, or using RiceCaliper, you agree to these Terms. If you do not agree with these Terms, please do not use the Service.
RiceCaliper is a rice analysis and quality assessment tool designed primarily for business and professional use.
Anyone may create an account and use RiceCaliper, subject to these Terms and any applicable laws.
You are responsible for ensuring that your use of RiceCaliper complies with all laws and regulations applicable to you.
Some RiceCaliper features require you to create an account.
When creating an account, you agree to provide accurate information and keep your account information reasonably up to date.
You are responsible for:
The number of users who may access an account may depend on the subscription plan you have selected.
Some plans include more than one user or limit the devices you can use. A Professional plan includes the account owner and one additional user. The owner is responsible for the people they add. Scans and reports made by an added user belong to the owner's account and count toward the owner's allowance. The owner can remove an added user at any time, and an added user can leave at any time; reports made in the owner's account, including any an added user chose to move into it, stay with the owner. If the owner's plan ends or drops below Professional, the added user can no longer see the owner's reports and goes back to their own account. A person who already has a paid RiceCaliper plan cannot join another account's plan. A plan may also limit how many devices can be used; you can change devices from your Account page a limited number of times each month.
You must not share account credentials in a manner that circumvents the user limits or other restrictions of your subscription plan.
RiceCaliper may offer different subscription plans, features, usage limits, and pricing from time to time.
The current plans, pricing, features, and applicable usage limits are described on our Pricing page and may be updated from time to time.
We may introduce, modify, discontinue, or replace plans, features, usage limits, or pricing as RiceCaliper evolves.
Where a change materially affects an existing paid subscription, we will provide reasonable notice where appropriate.
Paid subscriptions are billed according to the plan selected by you and the pricing displayed at the time of purchase.
Payments made through RiceCaliper are processed by our payment service provider.
By purchasing a subscription, you authorise the applicable payment provider to process the payment according to the selected plan.
Refunds. If RiceCaliper is not useful to you for any reason, ask us within 7 days of your first subscription payment and we will refund that payment in full. Later payments are not refundable once the period they cover has started. You can stop auto-renewal at any time by contacting us, and your plan then runs to the end of the period you have paid for. See Refunds and cancellation for how to ask.
When you move from Starter to Professional, the unused value of your current Starter period is converted into extra days of Professional. No cash is refunded. If you move down from Professional to Starter, the change takes effect at the end of your current period, with no refund or credit.
If you experience a significant technical issue that prevents you from reasonably using a paid service, you may contact us at [email protected]. We may review such cases at our discretion.
RiceCaliper uses computer-vision and AI-based technology to analyse rice sample images.
While we continuously work to improve the accuracy of our analysis, RiceCaliper does not guarantee that its analysis or results will be 100% accurate.
Results may be affected by factors including:
RiceCaliper's analysis should therefore be treated as an assistive and indicative analysis tool and not as a substitute for laboratory testing, physical inspection, professional quality assessment, or other methods that may be appropriate for a particular commercial or regulatory decision.
You are responsible for independently verifying results where accuracy is important.
RiceCaliper provides analysis information to assist users in evaluating rice samples.
You remain solely responsible for any business, purchasing, selling, pricing, quality acceptance, rejection, grading, trading, financial, or other decisions made using RiceCaliper.
To the maximum extent permitted by applicable law, RiceCaliper is not responsible for any commercial gain, loss, damage, rejected lot, pricing difference, transaction loss, or other consequence resulting from reliance on RiceCaliper's analysis or reports.
You retain your rights to the business information, sample information, and other data that you submit to RiceCaliper.
Subject to these Terms and our Privacy Policy, you may use and download your analysis reports for your business purposes.
RiceCaliper retains the rights necessary to process, store, analyse, and use submitted information to provide and improve the Service.
If you delete a report, it is removed from your account and from any link you shared. As described in the Privacy Policy, images and analysis data from it may be retained for product and model improvement.
Rice sample images may be retained and used to improve RiceCaliper's computer-vision and AI-based analysis models, as described in our Privacy Policy.
RiceCaliper may also use aggregated and anonymised information derived from the Service for research, analytics, benchmarking, industry insights, product development, and commercial purposes.
RiceCaliper and its underlying technology are owned by or licensed to Himanshu AgriTech Ventures.
This includes, without limitation:
Your use of RiceCaliper does not give you ownership of any of these intellectual property rights.
You may not copy, reproduce, modify, distribute, sell, license, reverse engineer, decompile, disassemble, or otherwise attempt to extract or recreate RiceCaliper's software, algorithms, models, or underlying technology without our prior written permission.
You agree not to:
We may restrict or suspend access if we reasonably believe that an account is being misused or these Terms are being violated.
We aim to keep RiceCaliper available and reliable, but we do not guarantee that the Service will always be uninterrupted, error-free, or available at all times.
RiceCaliper may temporarily be unavailable because of:
We may modify, suspend, or discontinue any part of the Service when reasonably necessary.
RiceCaliper may rely on third-party services to provide certain features, including payment processing, WhatsApp communications, analytics, cloud infrastructure, and other technical services.
Your use of certain features may therefore also be subject to the terms and policies of those third-party providers.
We are not responsible for the availability, performance, or policies of third-party services that are outside our control.
We may suspend or terminate your access to RiceCaliper if:
You may stop using RiceCaliper and request deletion of your account at any time by contacting [email protected].
Account deletion and data retention are subject to our Privacy Policy and applicable legal, tax, accounting, and regulatory requirements.
RiceCaliper is provided on an "as is" and "as available" basis.
To the maximum extent permitted by applicable law, we do not guarantee that:
You use RiceCaliper at your own discretion and risk.
To the maximum extent permitted by applicable law, RiceCaliper and Himanshu AgriTech Ventures will not be liable for indirect, incidental, special, consequential, or business losses arising from or related to your use of the Service.
This includes, without limitation, loss of profits, revenue, business opportunities, expected savings, data, or commercial transactions.
To the maximum extent permitted by applicable law, our total aggregate liability arising out of or relating to RiceCaliper or these Terms will not exceed the total subscription fees actually paid by you to RiceCaliper during the three months immediately preceding the event giving rise to the claim.
Nothing in these Terms is intended to exclude or limit liability that cannot legally be excluded or limited under applicable law.
You agree to indemnify and hold harmless RiceCaliper and Himanshu AgriTech Ventures from claims, losses, damages, liabilities, costs, and expenses arising from:
Your use of RiceCaliper is also governed by our Privacy Policy, which explains how we collect, use, store, and protect information.
Our Privacy Policy forms part of these Terms.
We may update these Terms from time to time to reflect changes in RiceCaliper, our services, pricing, technology, or applicable legal requirements.
When we make material changes, we may provide reasonable notice through the RiceCaliper website, application, email, or other appropriate communication channels.
The "Last updated" date at the beginning of these Terms indicates when they were most recently revised.
Your continued use of RiceCaliper after the updated Terms become effective means that you accept the revised Terms.
These Terms are governed by and interpreted in accordance with the laws of India.
If you have any questions regarding these Terms, please contact us at:
Himanshu AgriTech Ventures
Email: [email protected]
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The page you're looking for doesn't exist or may have moved.
Back to homeThree steps. No lab, no hand-counting.

1
Print at 100% (Actual size). Turn off "Fit to page". Check the printed ruler reads 160 mm.

2
One layer, grains not touching. Hold the phone directly above with all four corner markers in frame.

3
Every grain outlined and measured in about 30 seconds. Save, print or share it.
Open the sample reportPrint at 100%, check the ruler
Even light, no shadows or glare
One layer, grains not touching
Phone steady, directly above
A sample that represents the lot
No account needed. Print the sheet, take one photo, get the report.
From one phone photo to a report your buyer trusts.
See which machine adds the broken.
Try it on real lots
Free until you choose to upgrade
Most popular
For individuals
₹499/mo
Billed monthly
For mills and traders
₹1,299/mo
Billed monthly
For teams and multiple mills
Custom pricing
Tailored to your volume
Scroll to compare →
| Free | Starter | Professional | Business | |
|---|---|---|---|---|
| Users | 1 | 1 | 2 | More |
| Devices per user | 2 | 2 | 2 | More |
| Scans | 10 + 3/day | 300/mo | 1,000/mo | High-volume |
| History | 7 days | 1 year | Unlimited | Unlimited |
| Shared links | Never expire | Never expire | Never expire | Never expire |
| Buyer specifications | — | 3 | Unlimited | Unlimited |
| Trends | — | Basic | Advanced | Advanced |
| Compare reports | — | 3 | 6 | 6 |
| Multi scan (5 photos) | — | ✓ | ✓ | ✓ |
| FCI blend, offline scans | — | ✓ | ✓ | ✓ |
| Excel report, attachments | — | — | ✓ | ✓ |
| Quick scan | — | — | ✓ | ✓ |
| Mill line check | — | — | — | ✓ |
| Central history | — | — | — | ✓ |
| Branded reports | — | — | — | ✓ |
Fair-use limits apply.
We'll send payment receipts and renewal reminders to this address.
Your Starter plan stops renewing once Professional starts.
We've sent a 6-digit code to your WhatsApp.
Verified. thanks!
Follow these two steps to get accurate measurements with RiceCaliper.
Print this sheet at 100% / Actual size. In your print settings, select "Actual Size" (or turn off "Fit to Page" / "Shrink to Fit").
Correct
100% / Actual size
Incorrect
Printed smaller (Fit to Page)
When you place your sample on the sheet, spread the grains in a single layer with space between them. Don't let them touch or overlap.
Correct
Grains are separate
Incorrect
Grains touching or overlapping
Add more random photos from the same sample and get one aggregated report.
Combine up to 5 photos of one sample into a single, more reliable report.
See Starter planWe can see your last few scans didn't go through. Drop us a WhatsApp message and we'll help you get it working.
Chat on WhatsAppWe couldn't find the calibration sheet in your photo. Every scan needs it, with the whole sheet in the photo. A scan photo looks like this:
Rice grain analysis from a phone photo
Photograph your sample on our printed sheet. Get length, width, L/W ratio and broken %, in a report your buyer can open.
Free to try, no account needed.
accuracy vs. manual measurement, validated across hundreds of samples. How we measure
from photo to finished report
per sample. No lab equipment. Any modern smartphone camera works.
A printed sheet and the phone in your pocket.

Print at 100% on plain A4. Check the ruler.

One layer, grains not touching. One photo from above.

Save it, print it, or send it on WhatsApp.
Open the full sample report →
1
2
3
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What's in every report
Every grain measured: length, width, L/W ratio and area.
Accuracy
accuracy vs. manual measurement, validated across hundreds of samples
Corner markers correct for camera angle and distance.
Every sheet has a printed 160 mm ruler.
Each grain is measured on its own, not estimated from a few.
One measurement at every hand-off.
No account needed. Print the sheet, take one photo, get the report.
Use a fresh, random handful from the same sample for each photo.
Combining your photos…