#mobile-app
3 posts · updated 2026·03·15- 2026·03·15
Fixing “Invalid Signature” Errors When Uploading an iOS App to App Store Connect
Fix “Invalid Signature” errors when uploading an iOS app to App Store Connect. This guide covers common code signing pitfalls, framework validation issues, and the final root cause: a missing iOS Distribution certificate.
- 2025·08·05
How to Send a Fax From Your Mobile Phone (and Finally Retire the Office Machine)
Turn your phone into a secure fax machine—scan, sign and send documents worldwide in minutes. Try free fax receiving and more with Send Fax Pro today.
- 2025·07·01
Solving the “Distribution Certificate with Fingerprint Hasn’t Been Imported Successfully” Error in Expo iOS Local Builds
Fix the “Distribution certificate hasn’t been imported” error in Expo iOS builds with this step-by-step guide on certificates and Keychain setup.