📱 Android App

TurboPercent App Privacy Policy

This policy covers the TurboPercent Android app available on Google Play — not the turbopercent.com website, which has its own separate privacy policy. It explains exactly what the app collects, how advertising works, and your rights.

📱 Overview

TurboPercent is a free, offline-first calculator app. There is no account, no sign-up, and no login — you can use every calculator without ever giving us your name, email address, or any personal information.

The app is free to use and supported by banner advertising, delivered through Google's AdMob service. This policy explains exactly what that involves.

The short version: the numbers you type into calculators are processed entirely on your device and are never sent anywhere. The only data leaving your device is what's needed to show advertising, described in full below.

📋 Data the app collects

TurboPercent itself does not collect, store, or transmit any personal information to us or our servers — we don't operate any backend server that the app talks to.

The only data collection happens through the advertising SDK described in the Advertising section below, which operates independently of the app's own code.

💾 Data stored on your device

To make the app more useful, a small amount of data is saved locally on your device only:

  • Favourites — which calculators you've starred for quick access
  • History — a record of recent calculations, so you can revisit them
  • Preferences — your light/dark mode choice
This data never leaves your device. It isn't sent to us, isn't backed up to any server we control, and isn't accessible to us in any way. You can clear it at any time from within the app (Favourites and History both have a clear option), or remove it entirely by uninstalling the app.

📢 Advertising (Google AdMob)

TurboPercent shows banner adverts through Google AdMob (the Google Mobile Ads SDK) to keep the app free. AdMob operates independently of our own code and collects data directly, on Google's behalf, to serve and measure ads:

DataPurpose
Advertising IDA resettable device identifier used to measure ad performance and, where you've consented, personalise ads
IP addressUsed to serve ads and determine your approximate country/region
App interactionsAd impressions and clicks, used for measurement and fraud prevention
Device & diagnostic informationDevice model, OS version, and similar technical data used to serve ads correctly and detect invalid traffic

This data is collected and processed by Google, not by us — we don't have access to it beyond aggregated, anonymised performance reports. It's transmitted securely (encrypted in transit).

Google's own use of this data is governed by their privacy policy: Google Privacy Policy ↗, and specifically for advertising: How Google uses information from partner sites and apps ↗.

🧒 Children's privacy

TurboPercent is a general-audience calculator app and is not directed at children. We don't knowingly collect personal information from children, and the app doesn't request or require any personal information to function.

If you believe a child has provided us with personal information, please contact us and we'll address it.

⚖️ Your rights

Depending on where you live, you may have rights under laws such as the GDPR (EEA/UK) or CCPA (California), including the right to:

  • Know what data is collected about you and why
  • Access or request a copy of data held about you
  • Request deletion of your data
  • Object to or restrict certain processing
  • Withdraw consent for personalised advertising at any time

Because we don't hold any personal data ourselves (see above), most of these rights are exercised directly through Google's own tools, since AdMob is the only party collecting data in connection with this app:

  • Manage ad personalisation: adssettings.google.com ↗
  • Reset or opt out of your Advertising ID: in your device's own Settings → Privacy → Ads

🗑️ Deleting your data

Since TurboPercent has no account or server-side storage, there's no account to delete. To remove all data associated with the app:

  • On-device data (Favourites, History, preferences): use the clear options within the app, or simply uninstall it — this removes everything immediately
  • Advertising ID data held by Google: reset your Advertising ID or opt out entirely in your device settings, or manage it at adssettings.google.com ↗

🔒 Security

On-device data (Favourites, History, preferences) stays within the app's own sandboxed storage, protected by your device's own operating system security — it's never transmitted anywhere. Any data collected by AdMob is transmitted using industry-standard encryption in transit.

🔗 Third parties

We don't sell, rent, or share your data with anyone. The only third party involved in the app's operation is:

  • Google LLC (AdMob / Google Mobile Ads SDK) — for serving and measuring advertising, as described above. Governed by Google's Privacy Policy ↗.

📝 Changes to this policy

We may update this policy if the app's data practices change — for example, if we add new features or services. The "Last updated" date reflects the most recent revision. We won't reduce your privacy rights without clearly noting the change here.

✉️ Contact us

Questions about this policy or how the app handles data? Get in touch:

We aim to respond to all privacy enquiries within 30 days.