: A custom app store accessible via Cydia (requires jailbreak) that allows you to download and install older app versions directly on the device. App Store "Purchased" Section
For devices running (such as the iPad 2, iPad mini 1, or iPhone 4S), installing modern apps is difficult because the official App Store often requires newer software. Users typically rely on "IPA Libraries"—collections of older, compatible application files—and sideloading tools to keep these legacy devices functional. 1. Reliable IPA Libraries for iOS 9.3.5 Finding compatible ipa library ios 9.3.5
: VLC, Puffin Browser (often faster for web), Telegram (legacy version), and Spotify (via "last compatible" download). Incompatible : A custom app store accessible via Cydia
To gain full access to IPA libraries and bypass Apple's signing restrictions, a jailbreak is usually required: Phoenix Jailbreak It has largely replaced older tools like Cydia Impactor
: Currently the most recommended tool for desktop (Windows/Mac) to install IPAs onto iOS 9.3.5 devices. It has largely replaced older tools like Cydia Impactor.