Recommended and mentioned products
Cloud workspaces for development teams.
Alternatively you could try an online ide like https://codenvy.com/ -- I have not tried it.
Super-fast and highly configurable, professional-grade terminal for iOS.
I sometimes find myself coding from my ipad. I use blink.sh to ssh and then have a terminal setup using spacevim + golang layer and all the usual tools (git, delve, etc). You could use a raspberry pi as that server or an aws ec2 for example.