If your device is on iOS 15.0 (as your file name suggests), you are in luck. You can use TrollStore to install the IPA permanently without ever needing to resign it. 3. A Note on Compatibility
Always be cautious when downloading IPAs from "hidden" or unofficial sources. These files can theoretically be modified. If you have a Mac or a PC, you can use via the command line to try and download the app directly from your own App Store "Purchased" history if you ever owned it in the past. If your device is on iOS 15
Great if you want to keep the app active without a computer, though it requires a bit more setup. A Note on Compatibility Always be cautious when
Search for "iOS IPA Collection" or "Weather Bot IPA." Many users upload bulk libraries of decrypted apps here. Great if you want to keep the app
Are you planning to install this on a device or a stock iOS 15.0 phone?
The filename indicates (Universal) and "64bit" , which is standard for modern devices. However, ensure the "ok15" tag refers to compatibility with your specific firmware. If the app was designed for a much older version of iOS, it might "thin" or crash on launch due to missing modern frameworks. 4. Safety First