Best S2 alternatives: apps like S2: Strength log

10+ similar apps compared and reviewed

4.5 avg rating
10 free apps
Updated October 2026

Whether you want more options like S2 or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to S2

HeavySet - Gym Workout Log#1

HeavySet - Gym Workout Log by Runloop Ltd

Strength Training Tracker
Editor's Choice
💪 Health & Fitness
4.6😊(1.3K ratings)
FreeIn-App Purchases
HeavySet - Gym Workout Log screenshot 1
HeavySet - Gym Workout Log screenshot 2
HeavySet - Gym Workout Log screenshot 3
HeavySet - Gym Workout Log screenshot 4
HeavySet - Gym Workout Log screenshot 5
HeavySet - Gym Workout Log screenshot 6

This app is a powerful yet simple workout tracker designed for weightlifting, bodybuilding, and strength training. It allows users to log workouts efficiently, track progress with detailed charts, and manage routines with features like supersets and rest timers.

What We Love

  • 💪 Excellent for serious lifters
  • 👍 Intuitive and easy to use
  • 📊 Detailed progress tracking
  • 💰 Good value for one-time purchase
  • 🔢 Customizable workouts and exercises
  • ⏱️ Helpful timer and rest period features
  • 🧠 Sophisticated features for advanced users

Room to Improve

  • 🐛 Occasional crashes and bugs
  • 🔋 High battery consumption
  • 🤔 Steep learning curve for some users
  • 📱 Lack of Apple Watch integration
  • 🔒 Issues with restoring purchases
Gym Diary: Workout Tracker Log#2

Gym Diary: Workout Tracker Log by Nishan Niraula

Track gym exercise sets & reps
Strong Contender
💪 Health & Fitness
4.3😐(125 ratings)
FreeIn-App Purchases
Gym Diary: Workout Tracker Log screenshot 1
Gym Diary: Workout Tracker Log screenshot 2
Gym Diary: Workout Tracker Log screenshot 3
Gym Diary: Workout Tracker Log screenshot 4
Gym Diary: Workout Tracker Log screenshot 5
Gym Diary: Workout Tracker Log screenshot 6

This app helps you meticulously track every aspect of your gym workouts, from sets and reps to body measurements and nutrition. Plan routines, log exercises, and visualize your progress with detailed graphs to achieve your fitness goals.

What We Love

  • 👍 Simple and easy to use UI
  • 💪 Great for tracking workouts
  • ✅ Allows custom workout routines
  • 📈 Satisfying progress tracking with charts
  • ✨ Sleek and user-friendly design
  • 💬 Outstanding customer service
  • 🛠️ Developer is responsive
  • 🎯 Gets the job done easily
  • 🚀 Efficient workout logging
  • 💯 Best app for fitness journey
  • 🌟 Highly recommended
  • 💡 Flexible exercise and plan creation
  • ✅ Can add custom exercises
  • 📊 Good for analytics and improvement
  • 👍 User-friendly for beginners
  • ❤️ Love the app
  • ✨ Organized and keeps users on track
  • 🚀 Simple and effective
  • 💯 Amazing app

Room to Improve

  • 💰 Paywall for basic features
  • 💸 Forced to pay for membership again
  • 🚫 No free trial or limited features
  • 📉 Updates are poor and buggy
  • 🔒 Many features locked by subscription
  • ⚠️ App crashes between sets
  • 🐛 Data loss due to freezing
  • ❌ Can't use on other devices
  • 🤔 Basic amenities require payment
  • 👎 Extremely basic, not worth paying for
  • ❌ Can only use effectively with premium
  • 🐛 Latest update is buggy
  • ❌ Unusable without premium
  • 💸 Waste of money to remove ads
  • 🐛 Bugs prevent adding exercises/reps
  • 🐛 App closes when making new exercise
  • 🐛 Won't save sets
  • 🐛 Bugs don't save workouts correctly
  • 🐛 App freezes and data lost
  • ❌ Not user-friendly
  • ❌ Can't edit exercises
  • ❌ Overweight feedback is discouraging
  • ❌ Wrong units (metric vs. feet/inches)
  • 😩 Too many ads
  • 🤷‍♂️ Workouts added to plans appear different
  • 🐛 Crashing after purchasing
  • 🚫 No way of removing logs
  • 🤔 Need to orient workout by day of week
  • ⚠️ Fiddly UI at times
  • 🔒 History of exercises became premium feature
FitnessKit: PT Client Coach#3

FitnessKit: PT Client Coach by Mathew Brennan

Coach more clients with AI
Worth Considering
💪 Health & Fitness
4.6😐(148 ratings)
Free
FitnessKit: PT Client Coach screenshot 1
FitnessKit: PT Client Coach screenshot 2
FitnessKit: PT Client Coach screenshot 3
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FitnessKit: PT Client Coach screenshot 5
FitnessKit: PT Client Coach screenshot 6

Create custom workout plans, track your progress, and access a large exercise database with example videos. This app serves as a digital fitness passport for personal use or for training clients, eliminating the need for paper logs.

What We Love

  • 👍 Easy to use and understand
  • 💪 Great for tracking workouts
  • ✨ Allows custom workout creation
  • 🆓 Free with many features
  • 🎯 Helps organize workouts
  • 🚀 Efficient at the gym
  • 💡 Flexible for tracking progress
  • ✅ Simple and efficient logging
  • 🌟 Best fitness app
  • 👍 Uncluttered interface

Room to Improve

  • 🐛 Bugs introduced after updates
  • 🔄 App constantly refreshes
  • 🔋 High RAM usage
  • 📶 Over-reliance on network connection
  • ⏳ No auto workout end feature
  • 🗄️ Cannot access individual exercises
  • 🥶 Freezing on welcome screen
  • 📶 Only works on cell service
  • 🚫 Share feature doesn't work
  • ⏳ Rest timer non-functional
  • 🎛️ Odd layout and interface
  • 🚫 No audible tone for timer

More apps like S2

4
Gym Progress Tracker: Liftlog+
Gym Progress Tracker: Liftlog+
Gym Progress Tracker: Liftlog+
Workout Planner & Strength Log
Free

Plan and track your gym workouts with detailed exercise instructions and automatic rest timers. Monitor your progress with stats, trends, and personal records. Sync data with Apple Health and back up your history via iCloud.

Track sets with weight, reps, or durationAutomatic rest timersCreate custom workout templates
💪 Health & Fitness
(55)
freemium
5
Routine: Workout Tracker
Routine: Workout Tracker
Routine: Workout Tracker
Gym Logging & fitness tracking
Free

Easily log and track your gym workouts with this intuitive fitness app. Create custom routines, monitor progress with advanced stats and graphs, and utilize features like an auto rest timer and warm-up set generator. It supports various exercise types and integrates with Apple Watch and Apple Health.

Intuitive workout logging interfaceCreate custom strength and cardio routinesLog workouts with Apple Watch
💪 Health & Fitness
(116)
paid
6
FitHero - Gym Workout Tracker
FitHero - Gym Workout Tracker
FitHero - Gym Workout Tracker
Fitness Planner Weight Lifting
Free

Plan and track your workouts, measure progress, and learn new exercises with this intuitive fitness app. It offers pre-made routines, custom exercise creation with video demos, and personalized workout generation to help you achieve your fitness goals.

Workout logging400+ exercises with video demosCustomizable routines
💪 Health & Fitness
(182)
freemium
7
IRON Weight Lifting Tracker
IRON Weight Lifting Tracker
IRON Weight Lifting Tracker
Workout Planner & Gym Log
Free

This app helps weightlifters track workouts, plan routines, and log sets. It offers detailed performance metrics, exercise information with videos, and a comprehensive workout history. Tailor plans for muscle growth, strength, or fat loss.

Build custom workoutsLog sets with autofillTrack performance metrics
💪 Health & Fitness
(421)
free with in-app purchases
8
Simple Workout Log - Ironotes
Simple Workout Log - Ironotes
Simple Workout Log - Ironotes
Strength Training Tracker
Free

This app provides a straightforward way to log your gym workouts and track your strength progression. It focuses on simplicity and efficiency, allowing you to create custom routines, log sets quickly, and monitor your progress over time without unnecessary distractions.

Create custom workoutsLog sets quicklyAuto-load previous sets
💪 Health & Fitness
(352)
subscription
9
Progression: Workout Tracker
Progression: Workout Tracker
Progression: Workout Tracker
Gym log for strength training
Free

This app helps you track your fitness progress with a minimalist and fast interface. It automatically adjusts your weight and reps to help you break through plateaus and see results. Enjoy a clean design with no ads and deep iOS integration.

One-tap loggingAutomatic progression adjustmentsPlateau recognition
💪 Health & Fitness
(160)
free with in-app purchases
10
Shrug - Simple Workout Log
Shrug - Simple Workout Log
Shrug - Simple Workout Log
Easily Track Your Workouts
Free

Easily track your gym lifts to achieve progressive overload and see better results. This simple, free application offers all its features without any subscriptions.

Track gym liftsProgressive overload trackingSimple interface
💪 Health & Fitness
(9)
free