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Privacy policy

Effective 13 October 2026

Overlayer is made by Berkay Karamanlargil (“we”), who is responsible for any personal data described here. This policy explains what happens to your information when you use the Overlayer app for Android, visit the Overlayer website, sign up there or email us.

The short version

Overlayer works entirely on your phone. It has no internet access: it cannot send anything anywhere. The app does not collect, receive, store or sell any of your personal data. There are no accounts, no analytics, no advertising and no tracking. The only personal data we ever receive is your email address, if you sign up on the website or email us yourself, and the sales details Google Play reports to developers, if you buy Pro.

What the app works with, on your phone

To make your video, Overlayer reads the files you choose:

  • GPS data files (GPX, FIT, DJI SRT) and the data inside GoPro videos. These can contain your location history, dates and times, and fitness readings such as heart rate, cadence, power and temperature, as well as motion-sensor readings from your camera.
  • The videos you choose to add an overlay to.
  • An image you choose as a logo.

These are read on your phone, used to draw the overlay, and never uploaded. We never see them.

What the app keeps, on your phone

  • Your settings: units, chosen style and colourway, export quality, the text you type for your name or a text gauge, and your maximum heart rate.
  • Presets you save.
  • A list of your last few exported videos, with a small preview picture of each, so you can watch or share them again from the start screen. A video you delete from your gallery drops off the list.
  • Your Pro status: whether Google Play says you bought Pro, a pass code you redeemed, and how many of your free Pro exports you have used. These are kept and checked on your phone; nothing is sent to us.
  • The videos you export, which are saved to your phone’s gallery in an “Overlayer” album.

They stay on your phone until you delete them or uninstall the app. Uninstalling removes the settings and presets. Exported videos stay in your gallery, like any other video, until you delete them.

If Android backup is turned on for your phone, Android may include the app’s settings in your backup to your Google account, under Google’s own terms. We have no access to that backup.

Sharing

Overlayer only shares a video when you tap Share, Instagram or TikTok. Android then passes the video to the app you choose. What happens to it after that is governed by that app’s privacy policy.

Permissions the app asks for

  • Notifications, to show export progress and tell you when your video is ready.
  • Running in the foreground, so a long export keeps going while you use other apps.
  • Storage (Android 8 and 9 only), to save the finished video to your gallery. Newer Android versions need no permission for this.
  • Seeing whether Instagram or TikTok is installed, so a direct share button is shown only when the app is there.

The app never asks for your location, camera, microphone or contacts.

Purchases

If you buy Pro, the payment is handled by Google Play, under Google’s privacy policy. We never receive your payment details. The app asks the Google Play app on your phone whether your purchase is active, when you open or return to the app and when you tap Restore purchases, and keeps only the answer. Google Play gives developers the details of each sale, such as the order number, product, price and country; we use them only to handle refunds and support, and for accounting and tax, and keep them as long as tax law requires.

Health information

Heart rate and other fitness readings are displayed as they were recorded, for your video only. Overlayer is not a medical device and must not be used for medical decisions.

Signing up on the website

The website has a form for hearing when Overlayer launches and for joining the Android beta. If you fill it in, we receive your email address and whether you use Android or iPhone. Nothing is sent until you press the button.

The form is delivered to our inbox by FormSubmit (formsubmit.co), a form-forwarding service, which processes it only to pass it on to us. FormSubmit is based outside the EU and UK, so your email address may be handled in the United States. See FormSubmit’s own privacy policy for how it handles the data it passes on.

We use your email address only to tell you about Overlayer: its launch, the beta, and major updates. Our basis for this is your consent, which you give by submitting the form. You can withdraw it at any time by replying to any of our emails or writing to the address below, and we will delete your address.

If you email us

If you email us, for example to join early access or the Android beta, we receive your email address and what you write. We use it only to reply to you and to tell you about Overlayer. We never sell it or share it with anyone else. Ask us at any time and we delete it; we also delete it once we no longer need it.

To test the app before release, Google Play needs the email address of your Google account so it can let you install the test version. We add that address to the test list in Google Play Console and remove it when you ask or when testing ends.

This website

The Overlayer website sets no cookies, uses no analytics and loads nothing from other companies. The only thing it ever sends anywhere is the sign-up form above, and only when you submit it. It is hosted on GitHub Pages. Like any web host, GitHub records technical information such as your IP address to deliver and protect the site, under its own privacy statement.

Children

Overlayer is not directed at children under 13, or under the minimum age for digital consent where you live.

Your rights

Laws such as the EU and UK GDPR and Turkey’s KVKK give you rights over personal data an organisation holds about you. The only data we can hold about you is your email address and phone type, if you signed up or emailed us, and Google Play’s record of a purchase, if you bought Pro; ask and we will show it to you, correct it or delete it, except sales records that tax law requires us to keep. If you are in the EU or UK and unhappy with how we handle it, you can also complain to your local data protection authority. You control everything the app keeps: delete exported videos from your gallery, and clear the app’s data or uninstall it to remove everything else.

Changes to this policy

If the app ever changes how it handles information, this policy will be updated before that version is released. The effective date above will change, and the new policy will be available in the app and at the same address.

Contact

Questions about this policy, or to have your email address deleted: coverski1903@gmail.com