Trust Wallet and Atomic Wallet are both very well known but definitely different.
Difference between Trust Wallet and Atomic Wallet
The main difference is that Trust Wallet only exists as an app for smartphones (iOS and Android), while Atomic Wallet is also there for desktop computers (Windows, macOS, Ubuntu, Debian, and Fedora).
In light of this difference, Atomic would seem better than Trust, but collecting various feedbacks published online by users shows that Trust is often considered better, while for Atomic, there are even those who assume the existence of some small bugs.
In other words, among desktop users, Atomic obviously prevails over Trust since the latter is completely absent, but among mobile users, Trust prevails. Remember that using the same seed with Atomic, you can manage the same wallet both from desktop and mobile, while for Trust, this is simply impossible.
Both wallets support a lot of different cryptocurrencies and tokens on different blockchains, but not on the same ones.
Atomic supports the blockchains of:
Trust also supports Binance Smart Chain and many other blockchains such as Solana, Polygon, Cosmos, and many others (53 in total).
That makes the cryptocurrencies and tokens supported by Trust many more than those supported by Atomic.
Two non-custodial wallets
Both are non-custodial wallets and do not require any registration or identity verification, but behind Trust Wallet is Binance, while Atomic is independent and among its team members are the famous Charlie Shrem, founding member of the Bitcoin Foundation, and Konstantin Gladych, co-founder and CEO of Changelly.com.
Trust is a crypto-only wallet, meaning it only allows for the safekeeping and exchange of cryptocurrencies and tokens. However, it integrates forms of payment in fiat currencies for any purchases. Atomic also enables the purchase of cryptocurrencies in fiat with Visa and Mastercard credit cards.
Both allow anonymous crypto-to-crypto swaps, but Trust supports more blockchains and thus supports more exchange pairs. In addition, both support staking and earn programs.
Trust Wallet, however, also provides some tools that Atomic does not. For example, Trust allows for the custody of NFTs in ERC721 and ERC1155 format, while Atomic does not support NFTs. Moreover, Trust integrates a browser for DApps that you can connect with the wallet to use it inside them. Atomic, on the other hand, does not integrate a DApp browser.
A common feature of both is that they do not have open-source code. Since one of the assumptions from which cryptocurrencies were born, particularly Bitcoin, is “don’t trust, verify,” the fact of not verifying the code in person forces you to trust those who developed them. That is why they are both wallets that Bitcoin purists don’t really like.