Unfortunately, there are currently no desktop/web versions for it. See the developer's response from 2020[1].

Trustwallet, SafePal, Exodus all either have a desktop wallet or a browser extension but as mentioned above, these are closed-source wallets.

So if you don't want to go with that either, you have a couple of solutions:

- Install Bluestacks (an android emulator) on your desktop and then use Unstoppable on it.
- Or, if you're only interested in using USDT, you can use Tronlink extension.

[1] https://github.com/horizontalsystems/unstoppable-wallet-android/issues/2463