An offline mode survey asks users what they expect from your app without a connection and how well it catches up afterward. This template takes about 30 seconds: the tasks they need offline, whether anything stopped working, and a star rating for how their data synced when they reconnected.
It is written for the moment the app comes back online after a gap. In a web app, your code can fire a custom event when the connection returns and the survey opens (from Starter, or on 1 survey on Free), and an answer sent on a weak connection waits in the browser and retries for up to 7 days. Inside a phone app, have the app open the survey's link once it reconnects.
Results shows bars for each offline task with every typed Other answer listed, the share who said something stopped working, and the average star rating with the share who rated 4 or higher, against the period before. Select Yes on question 2 to read the tasks and sync ratings of users who hit a problem. Usertick reads each typed answer and files it under a category such as speed and reliability.