Last updated: October 19, 2026 · Effective: October 19, 2026 (app version 1.1.0)
Contents
1. Overview
CalcMacro ("we", "our", or "the app") is a free calorie and macro calculator app developed by RJ App Studio. This Privacy Policy explains how we handle information when you use our app.
Short version: Your body details (age, sex, height, weight, activity, goal and measurements) are saved only on your phone and are never uploaded. We use Google Analytics for Firebase to count which screens and tools are used, so we can improve the app. It never receives your body details or results. No ads, no account.
2. Data we collect
Body details you enter stay on your device. The app uses them to calculate results and, if you save a plan, stores them in the app's private storage on your phone. They are never sent to us or to any third party. Cloud backup is turned off for the app, so they are not copied to your Google account either. Uninstalling the app deletes them.
Data entered by you (stays on device only):
App usage statistics. Google Analytics for Firebase collects: which screens are opened, which calculators are opened, and whether a plan was saved; plus standard app information such as app version, device model, Android version, country and a random app-instance ID created for this install. This is used only to understand how the app is used and to improve it. It is not used for advertising, not sold and not shared with anyone for their own purposes.
3. What we do NOT collect
We explicitly do not collect any of the following:
- Your body details or calculation results (they never leave your phone)
- Name, email address, phone number, or any contact information
- The Advertising ID (collection is turned off in the app)
- Precise location (GPS)
- Camera, microphone, photos or files
- Contacts or calendar information
- Financial or payment information
- Health records or medical history
4. App permissions
CalcMacro does not ask for access to your camera, microphone, contacts, location, photos or storage.
Permissions used: Internet and network state, only so the anonymous usage statistics above can be sent. All calculators work without an internet connection.
5. Third-party services
CalcMacro uses Google Analytics for Firebase (Google LLC) for the anonymous usage statistics described in section 2. Advertising ID collection and ad personalisation are turned off. Google processes this data under the Google Privacy Policy and Firebase privacy information.
No ads: CalcMacro shows no advertising and uses no advertising networks. If this ever changes, this policy will be updated before the change reaches the app.
6. Children's privacy
CalcMacro is meant for adults (18 and over). It is not directed at children, and we do not knowingly collect personal information from children. Body details never leave the device, and the usage statistics contain no personal details.
If you are a parent or guardian and have a concern, please contact us. We will take appropriate steps to address your concern.
7. Health information disclaimer
Important: CalcMacro provides general wellness estimates based on standard scientific formulas including Mifflin-St Jeor, US Navy, and Devine methods.
Results generated by this app are for informational purposes only and do not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making changes to your diet, exercise routine, or health plan.
RJ App Studio is not responsible for any decisions made based on the results provided by CalcMacro.
8. Changes to this policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated effective date. We encourage you to review this page periodically.
Continued use of the app after any changes to this policy constitutes your acceptance of the updated terms.
9. Contact us
If you have any questions about this Privacy Policy or the CalcMacro app, please contact us:
RJ App Studio
Website: rjappstudio.in
Email: officialrjappstudio@gmail.com
We aim to respond to all privacy-related queries within 5 business days.