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How to download a copy of your data

5 min readUpdated October 28, 2026

Download a full copy of your data (.zip), recommended before changing device.

You can download a full copy of your register's data (items, sales, settings…) in a .zip file, from the app. This copy is recommended before changing device, reinstalling the app, or if you run into a problem.

It also lets support recover the latest version of your data, including anything not yet synced online. Pick the app or the back-office (on a computer) below.

Download the full copy from the app

The full copy (.zip) only exists in the app.

  1. Open “Online backup”

    Tap the menu icon ☰, then Settings, General tab, then the “Online backup” row.

    • The “Up to date” status means all your sales are synced online. You do not need this status to make a copy.
  2. Tap “Download my data”

    Tunder prepares the file, then offers it for sharing so you can save or send it. Its name starts with “tunder_data_export” and ends with .zip.

    • Please wait: while the file is being prepared, the “Back up” and “Download my data” buttons are inactive.
    • The “Back up” button is not a copy on your device: it backs up your data online.
  3. Another way: the app icon

    Press and hold the Tunder icon for a few seconds (iOS or Android): a quick menu appears. Choose “Download my data”: the .zip file is generated the same way.

    • Handy when the app no longer opens normally: the shortcut starts from the home screen.
  4. Send the file to support if needed

    Send an email to support@tunder.co with the .zip file attached. The team can analyze or restore your data.

    • If you are unsure, contact support before deleting the app.

Before deleting or reinstalling the app

Deleting the app can permanently lose your data if it is not backed up online and you have no copy.

  1. Download your data

    Follow the steps in the “App” part above.

  2. Wait until the preparation is finished

    Check that the .zip file was created and saved before going further.

  3. Only then, delete the app

    Never delete it without downloading your data first. If you are unsure, write to support.

Warning. Do not uninstall the app before checking that your latest copy was created.

Frequently asked questions

Where is the “Download my data” button?
In the app: menu ☰, Settings, General tab, “Online backup”, “Download my data” button. Or by pressing and holding the app icon on the home screen.
Do I have to wait for “Up to date” before downloading?
No. That status shows your sales are synced online, but the local copy works without it.
What is in the .zip file?
A copy of your register's data stored on the device: items, sales, settings, including what is not yet synced online. The file is not meant to be opened by hand: send it to support (support@tunder.co) so they can read or restore it.
Can I download my data from the back-office?
Not the full copy. In the back-office (admin.tunder.co): Items, Items tab, “Export” button: you get your catalog in Excel format.
How do I export my sales to Excel?
From the app, with the Export screen of the ☰ menu. Unlimited sales export is a Premium feature. It is not the backup copy described here.
How do I ask for a copy of my personal data (GDPR)?
Tunder's privacy policy provides the right to obtain a copy of the information processed, in a structured format. Write to support (support@tunder.co): these requests are free and handled as soon as possible, always within one month.
How do I delete my account and my data?
In the app: Settings, General tab, “My account”, then “Delete account”: the data deletion request page opens. You can also go straight to tunder.co/suppression-des-donnees and fill in the form with your account's email address. Download your copy first.

See also

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