ReadMyStrip — Privacy Policy
ReadMyStrip reads a pool, hot tub, or aquarium test strip against the color chart you save and shows you the measured values and the manufacturer's ideal ranges. For pools and hot tubs it also suggests approximate starting amounts of common products. These are general estimates: product strengths vary, so always follow the product label. The app does not decide whether water is safe and does not provide medical, health, or safety advice.
This policy explains what we collect, how it is used, who processes it, and your choices.
Information we collect
- Account. Your email address (used as your account identifier) and a password, so you can create and sign in to your account.
- Photos you provide. A photo of your test strip's color chart (saved once as your baseline) and the photos of test strips you scan.
- Results and notes. Your scan results (the measured values), your reading history, and any notes you add to a reading.
- Water settings. The water types you test and their settings, such as volume, sanitizer and aquarium type, used to size treatment amounts.
- Feedback. Anything you send through Send Feedback, with the app version, your device platform and the selected water type, linked to your account.
- Subscription status. Whether you have an active subscription, managed through RevenueCat (see "Third-party services").
- Operational logs. Basic request and diagnostic logs used to run, secure, and debug the service.
How your photos are processed and stored
- Your chart and strip photos are uploaded to our servers and sent to a third-party AI service (OpenAI) to read the colors. They are used to produce your reading, not for advertising, and we do not sell them.
- We store your saved chart image, your results and your reading history so the app works across sessions.
- We currently also retain copies of scan images to monitor and improve reading accuracy.
How we use your information
- To read your test strip and show your values and ideal ranges, and for pools and hot tubs, approximate treatment amounts sized to your water settings.
- To store your saved chart, results, reading history, and notes.
- To provide one free scan and manage paid subscription access.
- To review feedback you send and improve the app.
- To operate, secure, troubleshoot, and improve the app.
Third-party services
We share data with these providers only to operate the app:
- Supabase — account authentication, database, and file storage.
- OpenAI — image processing to read your strip and chart.
- RevenueCat — subscription management and entitlement status.
- Apple — in-app purchase and payment processing (iOS).
- Google — in-app purchase and payment processing via Google Play Billing (Android).
- Vercel — hosting of our backend.
We do not sell your personal information and do not use your photos for advertising.
Subscriptions
Every account includes one free scan. Continued scanning requires a paid subscription. Purchases are processed by Apple (iOS) or Google Play (Android), and your subscription status is managed via RevenueCat. You can manage or cancel a subscription anytime in your App Store or Google Play account settings.
Data retention and deletion
You can delete your account from within the app (Home → "Delete Account"). Deleting your account removes your associated data from our systems — your account, your saved chart, your stored results and notes, your water settings, any feedback you've sent, your scan images, and your subscription-access record.
Children
ReadMyStrip is not directed to children, and we do not knowingly collect personal information from children.
Security
We use industry-standard measures to protect your information. No method of transmission or storage is completely secure, so we cannot guarantee absolute security.
Changes to this policy
We may update this policy from time to time. When we do, we will revise the effective date above.
Contact
Questions about this policy or your data? Contact us at readmystripapp@gmail.com.