Trust wallet is a mobile wallet app, where user can send, received and stored digital assets bases on ethereum blockchain.
To use this wallet, there is no need to submit any identity it is anonymous. There is no form to fill, no registration. It has mobile and iOS app. All you need to do is to download the app, get it installed and start using it. You can have it in many devices, it does not have limit when it comes to installation.
It is free, it does attract any charges. Although, when you are sending transaction, user will need to pay gas fee, it is small amount of momey, that is used to process the transaction, and the fee will not be paid to trust wallet.
It is highly secured, it has many features of security. Such as open source, the wallet code can be reevaluate online and it has qualify security oversee. Nothing can be tamper with the wallet
Another security features is its backup facility, if the user backup the wallet while setting it up, if anything happens to the wallet it can be quickly recover in nothing less than 30 minutes.
From my own point of view, trust wallet is an idea wallet because of it's usability, easy use and easy to set up.