Termux is an Android terminal and Linux environment; there is no direct iPhone version with the same Android userland. The right iOS alternative depends on whether you want commands to run on the phone or on a remote machine.
Need a local shell on iPhone?
a-Shell runs a collection of command-line tools in an iOS app sandbox. It is useful for local scripts and files that iOS lets the app access. It is not the same as an unrestricted Linux installation or Termux package environment; check which commands your workflow needs.
Need to manage a Linux server or NAS?
NeoServer connects to remote machines over SSH and offers a terminal, SFTP files, server metrics, and Docker or Podman controls. The commands execute on your server, not locally on the iPhone. You need an SSH account and network access to that host. For unstable mobile connections, its Mosh mode requires mosh-server and reachable UDP ports on the remote side. Blink Shell is another SSH/Mosh-focused option for a command-line-heavy workflow.
Choose a-Shell if local commands matter most. Choose NeoServer if your goal is server administration with file and container tools. Choose an SSH-focused terminal such as Blink if you mostly want a customizable remote shell. None reproduces every Termux feature on iOS; test the commands and files you actually use before migrating. For NeoServer setup, see the user guide.
Ready to try it?
NeoServer · SSH, Mosh, Docker & SFTP client for iPhone, iPad and Mac
Free on the App Store