Since Trust wallet removes its DApp browser from IOS devices, many of users have been looking for other options. Below I have shared a way to enable the DApp browser on the trust wallet by using the URL- trust://browserenable
1. Open the safari browser on your IOS devices.
2. Enter the URL - trust://browserenable, then select "Go".
3. When prompted to "Open this page in "Trust" Tap "Open".
4. Now, the Trust wallet app will launch and be enabled.
5. Go to the bottom of the app and you'll see the "Browser" feature available from the menu.

For more read - https://onlinegeeks.net/how-to-enable-dapp-browser-on-trust-wallet/