Trust wallet have been their for years now I can also testify thay it is one of the best wallets even in term of security, I don't think have encountered any issues using trust wallet the only period I was having issues with trust wallet is when I lost my seed phrase and it was all my mistake and their was nothing that I would have been able to do I was pained but I actually lent from my mistakes. The team have done well for them self. And even when you want to download the app you will see a lot of good reviews about them and that is exactly what is needed somtimes to get your self convinced before downloading.
And imitative of using seed phrase was crazy because no seed phrase no access, not your keys not your coin so you will have to be mindful of how you do your things. And I don't think have seen anyone complaining about trust wallet they are complete and their developers are a top notch to have given a prior to the app because I know people must have tried to hack it.
For now it is an recommendable app for people to use when it comes to storing altcoins but when it comes to bitcoin I will recommend blue wallet, no matter what people will recommend, wallet for storage than exchange to show how important.