Modder is an Android app and game download site focused on modified APKs, presenting itself as a “trusted mod store” with premium features available for free. Its catalog includes apps across categories such as photography, personalization, tools, and general utilities, alongside Android games and TV apps. Featured listings include photo editors and enhancers such as Remini, Fotor, and Pixlr; messaging and productivity tools such as Telegram; Smart Launcher; Speedtest by Ookla; Tap To Translate Screen; and Proton VPN.

The site highlights modified versions with features described as premium-unlocked, ad-free, or offering unlimited resources, depending on the listing. Users can browse by category, explore trending and popular apps, and view recent updates. Modder says uploaded files are scanned and reviewed before publication and that unnecessary permissions are removed.

It also states that browsing, downloading, and updating mods require no subscription or login. Installation guidance explains downloading an APK, enabling installs from unknown sources, and opening the file to follow the prompts. The site also provides contact, privacy, terms, and DMCA information