[iMore Question]

Hello, since yesterday i have encountered a new problem with my iPhone. When I try to install any 3rd party app it doesn't install. I click install and then a new icon on my homescreen appears but when it installs it is blank. For example I tried to install AppValley I got that blank icon. The app doesn't show up in profiles. I tried to install TweakBox it worked because it is verified by Apple. Please someone help me! I have already tried to reset my phone and tried to upgare to the newest version. I have iOS 11.4.1 blobs but I can't downgrade because my Apple Watch is on WatchOS 5 so it won't connect to iOS 11.

[Tartarus]

I took a look at AppValley and it says that there will be a prompt asking you if you want to install an unsigned app, which you have to agree with.
Did you do that?

[Rob Phillips]

If you didn’t follow the “take me to settings” link you can also go to Settings > General > Profiles & Device Management, then “trust” the developer.

DISCLAIMER: Installing profiles from unknown sources in order to install unsigned and/or “tweaked” apps from unknown developers is generally a terrible idea. If you value your privacy I’d think twice.