Termius is the best way to manage UNIX and Linux systems whether that would be a local machine a remote service Docker Container VM Raspberry Pi or AWS instance. In other words Termius is Putty for Android but with awesome design.

Free Features:
· SSH client with support of ECDSA ed25519 and chacha20-poly1305
· Desktop app for Windows Mac and Linux
· SSH Mosh & Telnet protocol support
· Local terminal with bash
· Built-in RSA/DSA/ECDSA key generator and Putty keys importer
· XTerm-256 colors VT100 and vanilla terminal types support
· Local Remote and Dynamic port forwarding
· Automatic OS recognition e.g. Raspberry Pi Ubuntu Fedora
· Hardware keyboard support
· Password key and 2FA authentication
· 11 awesome color schemes
· Terminal Touch with the support of arrow keys Ctrl and Alt.
· Organize hosts into groups to share settings among them
· No ads or banners

Premium Features $5988 annually. This subscription can be used on any platform where Termius is available.
· Cross-device sync *
· SSH key agent forwarding
· SFTP client
· Terminal tabs
· HTTP/SOCKS proxy
· CLI tool to export ~/.ssh/config
· Fingerprint protection
· Home Screen Widget
· AWS EC2 and Digital Ocean host import
· Host chaining (hop host)
· Save and run snippets on multiple hosts
· Env variables

* Using zero-knowledge cloud storage with 2FA protection. All the data encrypted on the client-side using AES-256.