FitSimp
Theme
Appearance
Download FitSimp on the App Store

Workout log & gym planner · iPhone, iPad, Apple Watch

The most customizable gym app. Built by a gym-goer who actually trains.

Plan your training. Log each set. See your progress.

Download on the App Store

Complete seven workouts free. An account is optional.

What you can change

Themes
Crimson, Warzone, and Neon Grind
Appearance
Light and dark for each theme. That is six looks.
Templates
Equipment artwork and 10 identity colors
Rest times
Set for each template
Exercises
Add your own, with your own photos
Languages
English and Simplified Chinese

Use the theme control at the top of this page. The page and the app screens change to match.

Try it Tap Done on a set. The rest timer starts.

Push Day A

Active workout

0:00 elapsed 0/4 sets — bpm
1:30 Starts after each set

Barbell Bench Press

PR 5 × 77.5 kg

Last sessionMay 12

4 sets · 77.5 kg × 5

  1. 18132.3 lb60kg
  2. 28137.8 lb62.5kg
  3. 35170.9 lb77.5kg
  4. 45170.9 lb77.5kg

Example session. Nothing saves.

The FitSimp active workout screen: Push Day A, Barbell Bench Press, two of four sets done, and the rest timer row.
The app · Crimson · Dark

Customization

Three themes. Six looks.

Each screen shows the same workout. Crimson, Warzone, and Neon Grind each have a light and a dark appearance.

Active workout in the Crimson theme, light appearance
Crimson Light
Active workout in the Crimson theme, dark appearance
Crimson Dark
Active workout in the Warzone theme, light appearance
Warzone Light
Active workout in the Warzone theme, dark appearance
Warzone Dark
Active workout in the Neon Grind theme, light appearance
Neon Grind Light
Active workout in the Neon Grind theme, dark appearance
Neon Grind Dark

  • Template artwork

    Give each template equipment artwork and one of 10 identity colors.

  • Rest times per template

    Set the rest times in each template, next to the exercises and the planned sets.

  • Your own exercises

    Create your own exercises. Add your own photos to them.

Plan

Plan your training.

Build reusable templates with exercises, planned sets, and rest times. Give each template equipment artwork and an identity color. Then start a session from it.

10identity colors for templates

Identity colors

  • Crimson
  • Ember
  • Gold
  • Moss
  • Teal
  • Sky
  • Violet
  • Rose
  • Steel
  • Bone
The Plan tab in the Warzone theme with My Templates: Upper body and Push Day A, each with equipment artwork.
Templates · Warzone · Dark
The same Plan tab in the Neon Grind theme.
Templates · Neon Grind · Dark

Exercises

An illustrated exercise library.

Each exercise shows its muscle information. Filter the library. Add several exercises at once. Create your own exercises with your own photos.

152exercises with step guides

109built-in equipment entries with artwork

Equipment artwork

Barbell
Dumbbells
Kettlebells
Power rack
Cable crossover
Leg press machine

Muscle artwork

Pectoralis major
Latissimus dorsi
Quadriceps

Artwork from the app

Workout

Log each set.

Log weights and reps, timed holds, and distance-based work. Your last session stays in view while you log. A rest timer runs between sets.

Example session

0 of 4 logged

  1. Barbell Bench PressWeight and reps 77.5kg ×5
  2. PlankTimed hold 0:45
  3. Rowing machineDistance 400m
  4. Dumbbell CurlWeight and reps 12kg ×10

Each tap logs one row. The rest timer can add 30 s, undo the last set, or skip the rest.

Follow the workout on Apple Watch, too.

The active workout with Last session open: four sets of 77.5 kilograms for 5 reps, above today's sets.
Last session open · Crimson · Dark

History and recovery

See your progress.

History keeps your past sessions and training trends. The muscle map colors each region by engagement. Recovery estimates how fresh each muscle is, from 0 to 100.

Muscle map · Example: Barbell Bench Press

  • Primary
  • Secondary
  • Supporting

Muscle maps and recovery help you think about recent training. They are estimates, not medical advice.

The Recovery view: overall recovery at 100 percent and a list of muscle recovery rows.
Recovery · Warzone · Dark

Devices

iPhone, iPad, and Apple Watch.

Apple Watch

Follow the workout on your wrist. The Watch companion works with a paired iPhone.

Live Activities

Your workout shows as a Live Activity on supported devices.

iPad

A wider layout shows plans and recovery side by side. During a workout, your previous session stays next to the current sets. The layout adapts when you rotate or resize the window.

Privacy

Local by default. Cloud by choice.

Account
You can use FitSimp without an account. Sign in with Apple, with email from version 1.1.3, or with Google from version 1.2.0. Signing in alone does not upload your workout library. To delete your account, open Profile → Account → Delete Account in the app.
Workout records
Records stay on each device unless you choose a cloud feature. From version 1.2.0, optional FitSimp Pro Sync keeps a cloud copy of supported records and photos across up to 3 iPhones and iPads. Turn Off Sync deletes the cloud copy while keeping your local data.
Coach
From version 1.2.0, cloud Coach sends your messages and limited planning context to AWS to answer your request. It requires an account. Feature availability depends on your installed version; the Privacy Policy explains what leaves your device.
Apple Health
Apple Health is optional. You control its permissions.
Export and backup
Export your records or make a backup from the app.
Ad measurement
FitSimp does not show ads. The app asks before Meta measures app installs and sessions for FitSimp advertising. If you decline, all app features continue to work. Your workouts and Apple Health data are not sent to Meta.

Read the Privacy Policy

Note from the builder

I train in a gym. I built FitSimp as the log I want between sets. It is fast, it is clear, and you can set it up your way. If this is your first week or your tenth year, you are welcome here.

FitSimp Pro

Seven workouts free.

Each workout that you finish fills one slot on the card. Try it here. Tap a slot to punch it.

Seven workouts are free. After that, you need FitSimp Pro to start more workouts. FitSimp Pro is $9.99 per month or $59.99 per year (US prices). Your history stays available.

Local prices and any eligible trial show before purchase. Subscriptions renew automatically unless you cancel at least 24 hours before the period ends. See the Terms of Use.

Download on the App Store

Free workout card

0 of 7

Each slot is one finished workout. Tap a slot to punch it.