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Untrusted Enterprise Developer is a type of developer certificate. Most of apps have that signature type
Date trick is a trick that allows you to bypass the outdated apple developer certificate so that you will still be able to install a particular app. Disclaimer: This only works on iOS 9.3.5 or below. Doesn't work for IOS 10.
Installing apps that do not have a signature was a trouble days ago. Now we have given you a simple easy way for doing that. The only thing it requires is a computer.
A similar trick to Date trick but a newer more advanced one.
Apps4iphone is always under development and renovation, I am the only developer of the website and web app so there are still some temporary bugs present, here are just simple solutions to them. I will try to fix them as soon as possible.
If you have seen any bugs or other type of problems present on the website or web app, you can report it using the form.