Privacy Policy – First 100

Effective date: 20 September 2026
Developer: MD Developer Studio, Surat, Gujarat, India
Contact: ai.mdonda93@gmail.com

This Privacy Policy explains how MD Developer Studio ("we", "us", "our") collects, uses and shares information when you use the First 100 mobile app ("First 100" or the "App"). First 100 is a community where Android developers test each other's apps from Google Play, share feedback, and earn moon coins to list their own apps.

By using the App you agree to this Privacy Policy. If you do not agree, please do not use the App.

1. Information we collect

a) Account information (from Google Sign-In)

• Your name, email address and profile photo

• A unique account identifier provided by Google

We never see or store your Google password.

b) Information you provide

• Apps you list: the Google Play link and package name of your app

• Feedback you write for other apps, and replies you write to feedback on your apps

• Your display name, if you change it

c) Testing activity

• Which apps you are testing, your daily check-ins and test progress

• Your moon coin balance and coin history

• Your time zone, so daily tests reset at your local midnight

d) App usage data (Usage Access permission)

To confirm that a test really happened, First 100 asks for Android's Usage Access permission. With it, the App checks on your phone how many seconds the app you are testing was open on that day. Only that number of seconds, for that one app, is sent to our server. We do not upload your list of installed apps, your general app usage history, or any content from other apps. You can turn off Usage Access at any time in Android Settings, but tests cannot be verified without it.

The App also checks whether the app you are testing is installed on your phone and whether it was installed from Google Play.

e) Device information

• An Android device identifier (Android ID) and your phone model. We use this to allow only one First 100 account per phone, which keeps testing and rewards fair.

f) Analytics, crash and advertising data (collected by Google)

• Firebase Analytics: how the App is used (for example screens viewed, buttons tapped, session length), app version, device type, operating system, approximate location (country/city level derived from IP address) and an app-instance identifier.

• Firebase Crashlytics: crash reports and diagnostic information (for example the state of the App when it crashed, device model, operating system version and a crash identifier).

• Google AdMob: the Android Advertising ID, IP address, device information and ad interaction data (for example ads shown and clicked), used to show and measure ads.

2. How we use your information

• To create and manage your account and sign you in

• To run tests, verify daily check-ins, award and track moon coins

• To show your listed apps to testers and show feedback to app owners

• To prevent fraud and abuse, such as multiple accounts or fake tests

• To send daily test reminder notifications (you can turn these off in Android Settings)

• To fix crashes, understand how the App is used and improve it

• To show ads that help keep First 100 free

• To reply to your support requests and meet legal obligations

We do not sell your personal information.

3. What other users can see

• App owners can see the feedback you submit for their app, together with your display name and profile photo.

• Testers can see the apps you list and your replies to feedback.

• Your email address is never shown to other users.

4. Third-party services we use

We share information only with the service providers below, and only as needed to run the App:

• Supabase – our database, sign-in and server provider (data stored in the Mumbai, India region). supabase.com/privacy

• Google Sign-In – account login. policies.google.com/privacy

• Google Firebase Analytics and Crashlytics – usage analytics and crash reporting. firebase.google.com/support/privacy

• Google AdMob – advertising. policies.google.com/technologies/ads

• Google Play – we read public information about listed apps (name, icon, screenshots, category, install count) from Google Play.

These providers process data under their own privacy policies. We may also disclose information if required by law, to protect our rights or users' safety, or as part of a business transfer (for example a merger or sale), in which case this policy will continue to apply.

5. Advertising

First 100 shows ads provided by Google AdMob. AdMob may use your Advertising ID to show personalised ads. Where required by law (for example in the European Economic Area, the UK and Switzerland), we ask for your consent before showing personalised ads, and you can change your choice from the App. You can also reset or delete your Advertising ID, or opt out of personalised ads, in Android Settings → Privacy → Ads (or Google → Ads).

6. Data retention

• Account, testing, coin, feedback and app-listing data is kept while your account is active and deleted when you delete your account.

• The device identifier is kept for 30 days after account deletion, without being linked to you, to prevent reward abuse, and is then released.

• Server logs and encrypted backups may keep data for up to 30 days before being overwritten.

• Firebase Analytics data is kept for up to 14 months, and Crashlytics crash reports for up to 90 days, under Google's retention settings.

7. Deleting your account and data

You can delete your account at any time in the App: Profile → Delete Account. Your account and personal data are deleted immediately. If you no longer have the App, email ai.mdonda93@gmail.com from the Google account you signed in with, with the subject "First 100 account deletion", and we will delete your account within 7 days.

8. Your rights

Depending on where you live (including under India's Digital Personal Data Protection Act, 2023 and the EU/UK GDPR), you may have the right to:

• Access the personal data we hold about you

• Correct inaccurate data

• Delete your data

• Withdraw consent (for example Usage Access, notifications or personalised ads)

• Object to or restrict certain processing, and receive a copy of your data

• Complain to a data protection authority

To use these rights, email ai.mdonda93@gmail.com. We will reply within 30 days.

9. Security

Data is sent over encrypted connections (HTTPS) and stored with access controls. Coin and test rules run on our server, not on your phone. No method of storage or transmission is 100% secure, but we work to protect your information.

10. Children

First 100 is intended for users aged 18 and over and is not directed at children. We do not knowingly collect personal data from children. If you believe a child has given us personal data, contact us and we will delete it.

11. International transfers

Your data is stored in India. Google services may process data in other countries under their own safeguards.

12. Changes to this policy

We may update this Privacy Policy from time to time. We will change the "Effective date" above and, for important changes, notify you in the App. Continuing to use the App after a change means you accept the updated policy.

13. Contact / Grievance officer

MD Developer Studio
Surat, Gujarat, India
Email: ai.mdonda93@gmail.com