Beginner guide

How to Verify an App or Source Before Installing

General mobile-safety checks to run before installing any app from outside an official app store, including game apps.

Installing an app from outside an official app store — sometimes necessary for games not listed there — carries more risk than an app-store install, since you skip the store’s own review process. This guide covers general checks worth running first, for any app, not just games.

1. Confirm the source

Only download from a link on the official destination page you arrived at intentionally — not from a link in an unsolicited message, comment, or pop-up. If in doubt, navigate to the destination independently rather than clicking a forwarded link.

2. Check the domain carefully

Look closely at the web address before downloading anything. Scam pages often use a domain that looks almost right — an extra word, a swapped letter, or a different top-level domain (.top instead of .com, for example) than the one you expect.

3. Check the file type and size

A legitimate Android app installer is typically an .apk file of a plausible size for the app it claims to be. A file that’s unexpectedly tiny (a few hundred KB) for a full game, or has an unusual extension, is a warning sign.

4. Review permissions before you install

Android shows a permissions summary during installation. Be cautious of a simple card or multiplier game requesting access to contacts, SMS, call logs, or device admin rights — those are not typically needed for this type of app. See our Android permissions guide for what’s reasonable.

5. Keep Play Protect or another scanner active

If your device has Google Play Protect or another on-device scanner, keep it enabled — it can flag known-bad files even for apps installed outside the Play Store.

6. Watch for urgency and pressure

Countdown timers, “limited slots,” or messages pushing you to install “right now” are pressure tactics, not verification signals. A genuine offer will still be there after you’ve taken a minute to check it.

If something feels wrong

Stop the install and do not proceed. Uninstall immediately if you already installed something and now have doubts. See our guide on avoiding fake APKs and phishing pages for more specific red flags.

Questions

How to Verify an App or Source Before Installing FAQ