TRX can be stored in a variety of ways. The safest option is to use a hardware wallet (such as the Ledger Nano X), which is more expensive but offers greater security. Offline wallets and downloaded wallets (Atomic Wallet, Coinomi, etc.) that allow access to your TRX stock without an online connection are also available. The final option is to get an online wallet, which allows you to store your currencies while also allowing you to swap them on a single platform.