Everything Isofit does, in one place.
Isofit has four parts, one per tab: a workout logger you can tap, type or talk to; a body graph of the muscles your logged sets reached; Atlas, an AI coach; and Bonfire, a members-only community feed.
Overview
Four features, one per tab
- 01 · Log tabWorkout loggingLog workouts in Isofit three ways: tap in sets, reps and weight, type a Quicklog line like "bench 5x5 225lbs", or speak the session. Free on iPhone; tap and Quicklog work offline, voice needs a connection.
- 02 · Progress tabBody graphIsofit's body graph shades a front and back figure by the working sets you logged for each muscle over 7, 30 or 90 days or all time, so you can see what you train and what you skip.
- 03 · Atlas tabAtlas AI coachAtlas is the AI coach inside Isofit. With your permission it reads your workout history to review sessions, answer training questions and write programs. General fitness guidance, not medical advice.
- 04 · Bonfire tabBonfire communityBonfire is Isofit's members-only community feed. One post a day, each tagged with the kind of training it is about, with kudos and comments. No follows, no DMs, and your log stays private unless you post.
Tiers
Features by tier
| Feature | What it does | Tier |
|---|---|---|
| Workout logging | Record any session by tapping in sets, typing a Quicklog line or speaking. Routines, timers, history, offline queue. | Free |
| Body graph | Front and back figure shaded by working sets per muscle over 7, 30 or 90 days or all time. | Pro (locked preview on Free) |
| Atlas AI coach | Chat-based coaching that can read your log, review sessions and write programs. | Free: 10 Atlas messages a month. Pro: higher limits and programs |
| Bonfire community | Members-only feed of workout posts, one a day, with kudos and comments. | Free to read and react. Pro to post |
Who it is for
Who Isofit is for
Isofit is for adults 18 and over with an iPhone on iOS 17.6 or later. It is not the right fit if you need Android or a smartwatch, want the app to plan each workout for you, or want calorie tracking.
- Lifters who log every set and find tapping through rows between sets too slow.
- Hybrid athletes who mix lifting with running, yoga, sports or martial arts and want one log instead of one app per sport.
- People who want to see which muscles they have neglected over the last 7, 30 or 90 days.
- People training without a coach who want answers drawn from their own training history, not a generic plan.
- Hevy and Strong users who want typed or voice logging and a coach they can chat with.
- People who want their log private by default, with a feed they post to only when they choose.
Also included
What else ships in the app
- Exercise library
- Nearly 500 exercises across strength training, cardio, yoga, sports and martial arts, plus add unlimited custom exercises. Create one for anything missing and Isofit maps it to muscles.
- Apple Health import
- Optional and free. Imports workouts, and shows daily steps, exercise minutes, sleep, resting heart rate and distance. Read-only: Isofit never writes to Apple Health.
- Routines
- Save a finished session as a routine, favorite it, and load it onto the board next time. Programs Atlas writes land in the same list.
- History
- Every past session, open on every tier. Edit old sets, delete a session, or backdate one you forgot to log.
- Streaks
- A day streak on the Log tab, judged by your own local date, with one automatic streak freeze a month.
- $ISO
- In-app points earned by logging and spent on small actions such as Bonfire kudos, comments and voice logs. $ISO has no cash value and is not money.
- SITREP (weekly training review)
- On Pro, Atlas writes a Monday review of your training week that you can open and discuss.
- Appearance
- Light, dark or match the system.
- Sign-in
- Sign in with Apple, Google, or email and password.
- Your data
- On-demand JSON export and in-app account deletion with a seven-day grace period.
Not included
What Isofit does not have
Knowing what an app lacks is as useful as knowing what it has. As of this page's review date, Isofit has:
- No native Android, iPad or Apple Watch apps. The iPhone app is on the App Store, and the web app is available in your browser.
- No writing to Apple Health.
- No home-screen widgets.
- No personal-record tracking.
- No video posts in Bonfire, and no follows, groups or direct messages.
- No meal, calorie or macro tracking.
- No recovery or readiness score.
- No medical or diagnostic features. Atlas gives general fitness guidance.
Facts on this page were last reviewed . Details can change as Isofit updates. Read this page as markdown.
Available on the App Store and on the web.
Your workouts, working for you.
Download Isofit from the App Store for iPhone, or use the web app in your browser.
- For
- Adults, 18 and over
- Sign-in
- Apple, Google or email
- Price
- Free to log. Pro is optional