Usabilla for Apps allows you to collect user feedback when the user is online, but also when they are offline. If your user is not connected to the internet, their feedback will be saved and submitted once the user regains internet connectivity and opens your app again.
In order to make sure that your user is presented with the correct feedback form while they are offline, it can be useful to preload your feedback forms on iOS. Please see our Usabilla for Apps implementation guide for details on the implementation process. This feature is only available for iOS. In Android apps it is currently not possible to preload your feedback forms.