IDup app (iOS & Android)

When the app has no signal

The last list you loaded stays readable without a connection. Some changes are saved and sent later.

Last updated 21 October 2026 · More in IDup app (iOS & Android)

A phone loses signal in a basement, on a train and in half of every building. The app is built for that.

What is kept on the device

The last loaded list of the core areas is stored on the phone: the dashboard, customers, invoices, tasks, tickets, the letterbox, messages, appointments, hours, tax and trust items, and bookings.

When a screen is shown from storage, it says so: Offline, as of the time it was loaded. You always know whether you look at now or at then.

Changes without signal

  • In several areas, changes are saved on the phone and sent automatically when you are online again. Property management is one of them.
  • Uploads to your tax file or trust file wait the same way. The app says the upload is sent as soon as you are online.
  • The app shows how many changes are not sent yet: Unsent changes.
Before you sign outUnsent changes are deleted when you sign out. Wait until the number is gone.

What cannot work offline

  • Anything that needs an answer from the server at once.
  • Screens that open as the web page inside the app.
  • Anything you have not loaded on that device at least once.

The usual errors

  • No internet connection means the phone is offline. Use Retry once you have signal.
  • A screen that stays empty after a retry usually means the area is not in your plan or not permitted for your role.
  • If sign-in fails repeatedly, check that you use the e-mail address the company invited, and request a fresh code.
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