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About Sunn Fitness

Most fitness apps hand you a program and decide everything for you. You follow it, and you learn nothing. Sunn Fitness does the opposite. It explains the reasoning and leaves the decisions with you, so you leave every session a little more confident than you walked in. Taught, not told. YOU BUILD IT. SUNN EXPLAINS WHY. Pick your level, your equipment, your days and your movements. Sunn builds the program from your answers and tells you why each piece is there. Change anything you like. The decision stays yours. YOU GET BETTER AT CHOOSING YOUR OWN WEIGHTS. After each set, Sunn asks how many reps you had left and coaches from the answer. Not "add ten pounds". A plain read on whether today calls for a little more or a little less, and why. YOU SEE YOUR WHOLE WEEK, NOT JUST THE GYM. Log everything you do, gym, sport, yard work, as effort times minutes. Sunn compares the week against what your body is used to and shows one colour, with a plain-language read on when to push and when to pull back. The measure was developed for Olympians. We think it should work for everyone. 300 EXERCISES AND COUNTING, EACH ONE EXPLAINED. What to pick up, how to hold it, when to put it down. No assumed knowledge, no gym slang. WHAT'S NOT HERE, ON PURPOSE. No leaderboard. No badges. No feed. No target weight. No guilt. The research on why people keep training is clear: people who train because they understand and value it stay, and people who train from pressure quit. Sunn is built for the first kind. Start free with a 14-day trial. The gym is yours. Terms of use: https://www.sunnfitness.com/terms-of-service

What’s new

Version 1.1.1 · Updated October 31, 2026

Minor bug fixes and polish to keep your workouts looking right.

App privacy

The developer, Sunn Fitness Inc., reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Health & Fitness: Health
  • Contact Info: Email Address, Name
  • Identifiers: User ID

Used for: App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Usage Data: Product Interaction
  • Diagnostics: Crash Data, Performance Data

Used for: Analytics

Alternatives to Sunn Fitness

Looking for apps like Sunn Fitness? Here are 6 similar apps on the App Store. The highest rated is HabitShot: AI Habit Tracker (5.0/5), and all 6 are free to download.

Sunn Fitness vs. alternatives
App Rating Price Last updated Compare
Sunn Fitness – Free October 31, 2026
HabitShot: AI Habit Tracker 5.0 / 5 (3) Free Apr 23, 2026 Compare
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ProMed 5.0 / 5 (2) Free Oct 24, 2026 Compare
Tenera Assistant – Free Apr 29, 2026 Compare
FitFinder – Free Jun 20, 2026 Compare
Kinetix – Free Oct 23, 2026 Compare

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