The short version
Replit Agent is an autonomous builder wrapped around Replit’s full cloud IDE. It can plan, write, and run an app for you — and because it sits inside a complete development environment, you can always drop into the editor, open a shell, or add a package yourself.
That power is also its weight. You’re working inside a workspace with files, environments, and hosting to understand. Mana has none of that surface area: you stay in a conversation on your phone, and the app runs without a workspace to manage.
Who should pick which
Pick Replit Agent if you want a cloud IDE you can grow into — it’s great for learning to code and for developers who want a persistent, fully-featured environment.
Pick Mana if you never want to see an IDE. The whole point is that there’s nothing to manage: describe the app, it runs, you publish it.
Where the apps live
A Replit app is a hosted web project on a Replit URL. A Mana app runs with a native feel inside Mana and on its share pages, and it’s published to a discovery feed by default — so it finds users instead of waiting for you to share a link.