How to install .ipa file for iOS

iTunes :

1. Connect your Phone to computer and launch iTunes.
2. Drag the app's .ipa file into iTunes library.
3. Click on Sync and done, that's it.
4. If the app was earlier backed up from the same device, it would be installed without any fuss.

iFunbox :

1. Launch iFunbox and connect your iPhone/iPad/iPod.
2. Now navigate to the File Browser tab and select .ipa or apmx file.
3. Now click on Install App, select the .ipa or .apmx file of app which you want to install and click on Open !
4. Yo! The app will be installed successfully.

Diawi :

1. Open Diawi.
2. Upload the application and its provisioning profile.
3. Send the link to your testers, clients, friends or even use it yourself. (Either by E-Mail , WhatsApp etc)
4. Open the link in Safari on the iOS device and click on install.

iTools :

1. Connect your phone to computer and launch iTools.
2. After connecting your phone & launching iTools go to the Applications tab on the left hand side.
3. Now, click on the Install button.
4. Select the .ipa file which you want to install, and click on Open.
5. That’s it your app will be installed successfully !