Khio
Khio
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Fo, from Wajo, is an AI action agent that makes calls, sends emails and books things, with a person stepping in when it gets stuck. Khio is the friend in your Messages who texts you first and keeps your gym, food, habits and school on track.
Checked 12 October 2026. A cross means Fo does not offer it, or its own site, help pages and App Store listing do not say it does. Khio wrote this page; if anything here is out of date, tell us through support and we will fix it.
| Khio | Fo | |
|---|---|---|
| Texting it | ||
| Text it on iMessage | From a real phone number, like a friend | |
| Nothing to install | No app or sign-up form to start | Sign up on the web, then text, email or call |
| Texts you first | Morning and evening check-ins, follow-ups, a weekly recap | Acts on its own; check-in texts not described |
| Joins your group chats | Polls the group, lands the plan, follows up | Only on the invite-only OG Fo plan |
| Plays GamePigeon with you | 11 GamePigeon games, free. It takes its own turns | |
| Voice memos | Voice memos and photos, right in the thread | |
| A friend who knows you | ||
| Someone to talk to | Vent, think out loud, or ask it to just listen | An action agent for errands |
| Remembers your life | Long-term memory, on the Free plan | |
| Keeps you on track | ||
| Gym coach and PRs | Builds your routine, logs sets by text, flags every PR | |
| Calories from a photo | Text a photo or what you ate; calories and macros logged | |
| Habit streaks | Checks in and nudges before the streak breaks | |
| Sleep, cycle and budget | All three, logged from plain texts | |
| Reminders by text | One-off and recurring, at the exact time you ask | |
| Apple Health | Steps, workouts, heart rate, sleep and weight, in the iPhone app | |
| School | ||
| Study from your own notes | Flashcards and a practice test from your own notes | |
| Price | ||
| Free to start | Free plan. Pro is $14.50 a month with a 7-day free trial | Fo Mini is free; OG Fo is free by invite |
Pick Fo if you want errands handled. It makes phone calls and sits through hold music, has its own email, number and single-use payment cards, and brings in a human when the AI cannot finish. Fo Mini is free.
Pick Khio if you want a friend, not an agent. It talks like one, remembers your life, joins your iMessage group chats, plays GamePigeon, coaches you in the gym, counts calories from a photo and tracks habits, sleep and your cycle. Free to start; Pro is $14.50 a month.
No. Wajo describes Fo as an AI action agent that gets things done for you. Khio is an AI friend you text on iMessage: you can vent, think out loud or ask it to just listen, and it texts you first.
Wajo's own pages do not list workout logging, calorie tracking or habit streaks. Khio builds a gym routine, logs sets by text, flags personal records and counts calories from a photo of your plate.
Wajo lists group chats on its invite-only OG Fo plan. Khio joins any iMessage group: it runs polls, picks a time, follows up and plays GamePigeon.
More comparisons: every assistant side by side.