The gym workout app that plans every session for you
Symmetry is a gym workout app for iOS and Android that builds your routine, tells you how much weight to lift on every set and logs your workouts so you get stronger week after week.
More than 3 million downloads (as of September 2026) and a 4.8 rating on the App Store and Google Play (as of October 2026). The download is free, and building your plan takes less than a minute.
Symmetry teamUpdated 3 min read
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What a good gym app actually does
Walking into the gym without a plan is the fastest way to stall. You repeat the same exercises, you never know whether today is the day to add weight, and a few weeks later you stop seeing changes.
A useful gym app answers three questions: what to train each day, how much weight and how many reps to do, and how you are doing compared with last week. Symmetry handles all three, so you don't have to put anything together by hand.
How Symmetry works in the gym
When you open the app you see today's workout: the exercises, sets, reps and weights. You log each set as you finish it, and the app saves the session.
From that history it works out the next one. If you hit everything that was planned, it suggests adding weight or reps; if you didn't, it keeps the load where it is. That is progressive overload, the principle behind almost all progress in strength and muscle, applied automatically.
- A routine matched to your level, your goals and your equipment
- Weights and reps calculated for every session
- Step-by-step technique tutorials for every exercise
- Charts for strength, volume and consistency
For beginners and experienced lifters
If you are starting from zero, Symmetry gives you a routine built from exercises you can perform correctly from day one, and it teaches you the technique for each of them.
If you have been training for a while, the app takes the planning and the bookkeeping off your plate. It tracks weekly volume per muscle group and adjusts your progression so you don't plateau.
Free on iPhone and Android
Symmetry is a free download on the App Store and Google Play. The core of the app, building personalized routines and logging your workouts, costs nothing.
There is also an optional subscription: Symmetry Pro costs €12.99/month or €39.99/year on the Spanish App Store (as of October 2026).
What makes Symmetry different
- 01
Automatic progressive overload
It works out how much to lift each session from how you performed last time.
- 02
Progress stats
Clear charts of strength, volume and consistency, so you can see how you are really progressing.
- 03
Science-based routines
Programming follows training principles backed by hypertrophy research.
- 04
Proper technique
Step-by-step instructions on every exercise, so you train well and avoid injury.
