Underdog vs Fo
How the two compare on price, platforms, what they can act on and how they ask before acting. Facts come from each agent's sources page.
| Underdog | Fo | |
|---|---|---|
| Maker | Conway Research | Wajo |
| Cheapest paid plan | Free | Not stated |
| Free tier | Yes: the app is free; the maker says it earns a small share of purchases the assistant makes for the user | Yes: Fo Mini is free with 1000 tasks per day; OG Fo is free by invite with unlimited tasks |
| Platforms | macOSiOSiPadOSWindows | Text messagesGroup chatsEmailPhone calls |
| Can act on | EmailCalendarMeeting notesDictationBrowserShoppingPayments | Phone callsEmailMessagesCalendarBookingsShopping |
| Approval model | Official site says it gets the next step ready for the user's approval on sensitive tasks, and purchases are paid with a one time Link card the user approves. AI processing runs locally and an offline mode can block all calls home. | Wajo says its agents can work in draft only mode, ask for approval before acting, or handle defined work on their own, and are designed to ask before hard to reverse actions. Purchases use single use cards, and tasks the agent cannot finish can be passed to trained human assistants. |
| Launched | Oct 2026 | Aug 25, 2026 |
| Last update | Oct 15, 2026: Underdog for Windows | Sep 28, 2026: Public availability |
See sources on the Underdog and Fo pages.
Track both every week