Comparison

S2 vs Gym Workout Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

S2

This app helps you track and visualize your gym workout progress, encouraging progressive overload for weight loss or muscle gain. It offers a fast, intuitive interface with over 1000 exercises and a unique muscle fatigue heat map. No account is needed, and it integrates with HealthKit.

Highlights
  • Track and visualize workout progress
  • Muscle fatigue heat map
  • Create unlimited workout routines
  • Encourages progressive overload
  • 1000+ exercises
  • Workout history review
  • HealthKit integration
Features
Read full description

S2 (Superior Self) is your ultimate workout companion, allowing you to track and visualize your workout progress. Whether you want to lose weight or gain muscle mass, S2 is an excellent tool to help you with progressive overload and beat the yesterday you. - Premium, beautiful workout app - No account registration is required - Fast and intuitive. No load times - View your muscle fatigue on a body heat map - Create unlimited workout routines - Encourages progressive overload - 1000+ exercises - Improved insights over time How does it work? Start by creating your workout routines in S2. Your first workout for any given routine will act as a baseline for the next workout, encouraging you to do more work by moving more mass. The technical term for this is called progressive overload, and it's the core principle behind any successful strength training. Between workouts (or during an ongoing workout) you can review your past performance by easily accessing your workout history. S2 integrates with HealthKit to register your workouts. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Gym Workout Tracker

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.

Highlights
  • Track sets with weight, reps, or duration
  • Automatic rest timers
  • Create custom workout templates
  • Over 290 built-in exercises
  • View workout history and trends
  • Sync with Apple Health
  • Data backup and export
Features
Read full description

Have a plan. Log every set. See your progress. Liftlog+ helps you plan and track your gym workouts without getting in the way. Choose from 425 exercises, build your own routines or start with a ready-made training plan. PLAN YOUR TRAINING • Browse plans for different goals and equipment, including beginner full-body, dumbbell, 5x5 and PHUL training • Preview workouts, required equipment, schedules and progression guidance • Create your own routines, organize them in folders and assign weekdays • Keep useful coaching notes with your plans and exercises LOG WITH LESS EFFORT • Track weights and repetitions or timed sets • See your previous values for each set • Complete sets or reuse previous values from your Live Activity • Stay focused with automatic rest timers and compact exercise countdowns • Link exercises as supersets • Record RPE and mark warm-up, drop and failure sets • Switch between pounds and kilograms FIND YOUR NEXT EXERCISE • Explore 425 built-in exercises with refreshed color illustrations and animations • Save favorites in a dedicated list or add your own exercises • Search and filter by muscle group, exercise type and equipment • Check exercise descriptions, instructions and targeted muscles FOLLOW YOUR PROGRESS • See exercise details, progress charts, personal records and your latest sets in one overview • Browse your full workout history • Track workout duration, training volume and estimated one-rep max • Follow personal records for weight, repetitions, volume and 1RM KEEP YOUR DATA WITH YOU • Save fitness data to Apple Health with the Apple Watch companion app • Back up and restore your data with iCloud • Preserve exercise favorites and plan details in backups • Export your data to CSV LIFTLOG+ PRO An optional paid upgrade unlocks unlimited routines and custom exercises, rest timers, supersets, notes, RPE tracking, extended progress charts and CSV export. Questions or feedback? contact@liftlog.plus Website https://www.liftlog.plus Terms & Conditions https://www.liftlog.plus/pages/terms Privacy Policy https://www.liftlog.plus/pages/privacy

Screenshots

S24 screens
Gym Workout Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: Gym Workout Tracker at 88% against S2's 41%. Gym Workout Tracker also leads on rating (4.7 vs 4.1). S2's advantage is iOS requirement (16.0 vs 18.7). On price, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. S2 sells 2 in-app purchases, starting at $22.99 per year and Gym Workout Tracker sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Gym Workout Tracker holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 129 and 55 respectively. Written reviews point the same way: 41% of S2's written reviews are positive against 88% of Gym Workout Tracker's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
S2 versus Gym Workout Tracker: the parameters behind the verdict, then further details
ParameterS2Gym Workout Tracker
PriceFreeFree
Rating4.1 (129 ratings)4.7 (55 ratings) — better
Positive reviews41.3% of reviews87.5% of reviews — better
Number of ratings129 — better55
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS16.0 — better18.7
Further details — not scored
Size9 MB82 MB
Age rating12+4+
DeveloperFormbound ABDenis Andrasec

Customer experience

S2

All ratings126 ratings
Positive73.8%
Neutral11.9%
Negative14.3%
Written reviews75 reviews
Positive41.3%
Neutral22.7%
Negative36.0%

Gym Workout Tracker

All ratings55 ratings
Positive94.5%
Neutral1.8%
Negative3.6%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

In-app purchases

2 purchases

S2

Subscriptions1
  • S2 Yearly$22.991 Year
One-time1
  • Strongly Pro$4.99
6 purchases

Gym Workout Tracker

Subscriptions5
  • Liftlog+ PRO Weekly3 Days trial$2.997 Days
  • Liftlog+ PRO Monthly$4.991 Month
  • Liftlog+ PRO Monthly7 Days trial$4.991 Month
Show 2 more
  • Liftlog+ PRO Yearly7 Days trial$29.991 Year
  • Liftlog+ PRO Yearly$29.991 Year
One-time1
  • Liftlog+ PRO Lifetime$69.99

Questions

Is S2 free?
S2 is free to download, with in-app purchases available.
Is Gym Workout Tracker free?
Gym Workout Tracker is free to download, with in-app purchases available.
Which has better reviews, S2 or Gym Workout Tracker?
Gym Workout Tracker is rated higher. S2 averages 4.1 out of 5 from 129 ratings, while Gym Workout Tracker averages 4.7 from 55 ratings.
Do S2 or Gym Workout Tracker have ads?
Neither S2 nor Gym Workout Tracker shows ads.
Which is updated more often, S2 or Gym Workout Tracker?
S2 ships an update fortnightly, and Gym Workout Tracker fortnightly. Most recently, S2 was updated on October 26, 2026 and Gym Workout Tracker on October 24, 2026.

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