Mobile Phones iPhone & iOS How to Trust an App on iPhone Sometimes you just need to take the leap by Scott Orgera Writer Scott Orgera is a former writer who covering tech since 2007. He has 25+ years experience as a programmer and QA leader, and holds several Microsoft certifications. our editorial process Facebook Twitter Scott Orgera Updated on July 16, 2020 reviewed by Michelle Adeola Adelufosi Lifewire Tech Review Board Member Michelle Adeola Adelufosi is a marketing consultant with 9 years' experience working for a variety of clients. Her expertise includes social media, web development, and graphic design. our review board Article reviewed on Apr 03, 2020 Michelle Adeola Adelufosi iPhone & iOS Switching from Android Tweet Share Email What to Know If you know how to trust an app on iPhone, you can install apps from outside the Apple App Store.Only trust apps from reputable sources, otherwise you could put your iPhone at risk.You must trust the developer and verify the app before you can load it onto your iPhone. For software that doesn't originate from the Apple App Store, you must manually trust the app to launch it after the installation is complete. This process is frequently necessary with enterprise apps that are created by an employer for internal use. Instructions in this article apply to iOS 13 through iOS 9 and iPadOS 13. Trust an iPhone App You should trust the app creator as well as its download source. If you're uncertain, avoid trusting the app, as your personal data and iPhone could be compromised. Download and install the app. When you tap the app to open it, a message informs you that the app developer is not trusted on the iPhone. Tap Cancel to close the message. Go to the iPhone Home screen and tap Settings. In the iOS Settings, scroll down and tap General. Scroll down and tap Profiles, Profiles & Device Management, or Device Management, depending on the iOS version. The Profiles / Device Management settings screen only shows up if your employer remotely manages your device. A regular consumer-grade iPhone or iPad does not offer this screen. In the Enterprise App section, tap the profile name for the developer of the untrusted app. Tap Trust [Developer Name] and confirm your choice. Tap Verify App. The verification only occurs when you have an active internet connection. If you have a company-issued iPhone and can't verify an app, a firewall may be blocking the connection. Check with your administrator for help.