FOOLPROOF
Privacy Policy
The only page in Foolproof that doesn't lie to you.
Effective date: 11 October 2026This policy covers the Android game Foolproof (package com.prismtech.foolproof), which we call "the app" below.
The short version
Foolproof has no accounts, and we collect no personal data. Your progress is saved only on your phone. The Android app shows ads from Google AdMob between pages; to show them, Google's ad software collects some device data, described below. Remove ads (a one-time purchase) turns the ads off.
What we collect
Nothing. We (Prism Tech, the developer) run no servers for the game and receive no personal or device information from it: no name, email, contacts, photos, location or usage statistics. We do not sell data. The one exception is Google's advertising software described in the next section, which runs inside the app.
Ads (Google AdMob)
The Android app shows a full-screen ad between pages now and then (never in the first five pages, never right after a break, never during a speedrun) and offers an optional video ad to skip a page you are stuck on. These ads are served by Google AdMob. To show them, measure them, limit how often you see the same one and prevent fraud, Google's Mobile Ads SDK collects and shares with Google:
- your phone's advertising ID and app set ID (device identifiers)
- your IP address, which can estimate your general location (not your precise location)
- how you interact with ads, such as views and taps
- diagnostic information, such as app launch time and performance
This data is encrypted in transit. Google's use of it is described in how Google uses information from apps that use its services and the Google Privacy Policy.
Your choices: in the EU, EEA and UK the app asks for your consent with Google's own consent form before personalised ads, and you can change it any time in Settings → Privacy & ad choices. Anywhere, you can reset or delete your advertising ID in your phone's Android settings (Privacy → Ads). Ads are limited to content suitable for general audiences.
Remove ads (purchase)
Remove ads is a one-time purchase made through Google Play. Google handles the payment; we never see your payment details. Google Play only tells the app that you own Remove ads, and the app remembers that on your phone. If you reinstall, Google Play restores it.
Daily reminder and sharing
- Daily reminder (off until you turn it on): the app schedules a notification on your phone for when a new daily page is ready. Nothing is sent anywhere. Turn it off in the game's Settings.
- Share: only when you tap Share, the app draws a picture of your result on your phone and opens Android's share menu. You choose where it goes; nothing is sent to us.
What is stored on your phone
To remember your game, the app keeps a small save in its own private storage on your device (the app's local storage). The save holds:
- the pages you have cleared, your stars, best times and break counts
- stickers, unlocked pencils and papers, daily-page results and speedrun times
- your settings, such as sound, music, vibration, controls and the daily reminder, and whether you own Remove ads
This save never leaves your device through the app. Other apps cannot read it.
Deleting it: use Settings → Progress → Reset in the game, clear the app's storage in Android settings, or uninstall the app. Uninstalling deletes the save from the phone.
Android backup: if you have turned on Android's own device backup to your Google account, Android may include this save in that backup and restore it on a new phone. Google runs this backup under your Google account settings. We have no access to it. You can turn it off in your phone's backup settings.
Permissions
- Internet and advertising ID: for the ads and for Google Play purchases. The game itself works offline; without a connection no ads load.
- Notifications: only for the daily reminder, and only if you turn it on (Android asks you first). Run at startup lets Android keep your reminders after the phone restarts.
- Vibration: a short buzz when your pencil breaks or you clear a page. You can turn it off in Settings.
Children
Foolproof is made for players aged 13 and over and is not directed at children. Ads are limited to content suitable for general audiences, and we knowingly collect no data from children.
Changes to this policy
Version 1.1.0 added ads, Remove ads, the daily reminder and sharing; before it, the app had no internet access at all. If this policy changes again, we will update this page and the effective date above before that version is released.
Contact
Questions about this policy: prismapptech@gmail.com