Yes. The SOLO wallet is secure and decentralized. All important information is stored locally on your device and is strongly encrypted. It means that you own your backup phrase and private keys, thus, you fully control your funds. Your funds are safely stored on the blockchain.
Security, ease of use, availability, speed, and decentralization were amongst our top goals when developing the SOLO wallet.
It's an open-source project and you can view the full source code at https://github.com/sologenic