Use a PC/Mac utility to sign the IPA with your Apple ID and push it to your phone. Security and Best Practices
Keeping a local copy of the app in case it is removed from the App Store. download-card2phone-telefonbuch-ipa
If you are having trouble finding a specific version of the Card2Phone IPA for a legacy device, let me know: What are you running? Use a PC/Mac utility to sign the IPA
Card2Phone is a productivity tool focused on the German-speaking market (as indicated by the "Telefonbuch" branding). Its core functionality includes: download-card2phone-telefonbuch-ipa
An .ipa file is the executable folder that contains the app data for iOS. You might look for the Card2Phone IPA for several reasons: