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Use Tunder on a computer

3 min readUpdated October 28, 2026

The back-office opens in a browser, with nothing to install. The app can be downloaded on iPhone, iPad and Android.

On a computer, you use Tunder with the back-office, at admin.tunder.co. It opens in your browser: there is nothing to install.

The register app can be downloaded on iPhone, iPad and Android (phone and tablet). To sell, use the app.

Open the back-office in a browser

It works on any computer, Mac or Windows, with a browser.

  1. Find the address

    Type admin.tunder.co in your browser. You can also email it to yourself from the app: tap the menu icon ☰, then Settings, General tab, “Back-office” row.

    • In the app: the “Back-office access” screen shows the address and lets you receive it by email (“Receive the address by email”).
  2. Sign in

    Sign in with the account that created the shop on the register.

    • If Tunder says “No shop on this account”, you are not using the right account: sign in again with the register's one.
  3. Choose your shop

    If your account has several shops, Tunder asks you to pick yours (“Choose your shop”). The left menu then gives you access to Items, Inventory, Subscription and Settings.

Tip. The back-office is for managing your shop from a big screen: items, inventory, subscription and settings. Sales are made in the app.

On Mac

  • The back-office, with no installation

    Open admin.tunder.co in Safari, Chrome or another browser: it is the simplest option on a Mac.

  • The app on the Mac App Store

    Open the Mac App Store, search for “Tunder”, then download the app. Sign in with the same email address as your account. It requires macOS 11.0 or later.

On Windows

  • No app for Windows

    The Tunder app is not available for a Windows PC, and there is no other way to install it there.

  • The back-office works

    Open admin.tunder.co in your browser: it works on Windows too.

Frequently asked questions

Can I install the app on a Windows PC?
No, there is no Tunder app for Windows. Use the back-office in your browser (admin.tunder.co) to manage your shop, and the app on an iPhone, an iPad or an Android device to sell.
Is there a version of Tunder that opens in the browser?
Yes, the back-office: admin.tunder.co. It is for managing your shop (items, inventory, subscription, settings). To sell, use the app.
Which account do I use to sign in to the back-office?
The account that created the shop on the register. If Tunder says “No shop on this account”, sign in again with the right account.
How do I find the back-office address?
In the app: menu ☰, Settings, General tab, “Back-office” row. The address is shown there, and you can email it to yourself.
Can I use the same account on several devices?
Yes. The number of connected devices depends on your subscription: see the article about the device limit. Your connected devices are listed in the back-office, Settings, “Devices” row.

See also

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