Comparison

S2 vs Simple Workout Log

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

Simple Workout Log

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.

Highlights
  • Create custom workouts
  • Log sets quickly
  • Auto-load previous sets
  • Built-in rest timers
  • Track strength progress with stats
  • View training consistency
  • Add notes and tags
Features
Read full description

Ironotes is a simple workout log for people who care about getting stronger - not chasing the latest fitness trend. They've already found the few things that drive almost all of their results: progressive overload, a handful of proven lifts, and consistency. That's why they choose a minimalist app that stays out of the way and just works. Why lifters choose Ironotes: "Simple, intuitive, effective. No fancy gimmicks. I was able to set everything up in ten minutes." "Offers the functionality of subscription services for absolutely free." "Free. Clean. Journal. PBs. A few charts. Just get the app." Follow your own program. Log sets without interrupting your workout. Know what you lifted last time. See your progress and consistency. Keep hitting PR's. No paywall to get started. No sign-up. No ads. No mandatory subscription. If you enjoy using Ironotes, you can support its development with a voluntary donation. Build your workouts • Create unlimited custom workouts • Full control—no templates or restrictions Log your training • Log weight, reps, and sets in seconds • Auto-load previous sets • Session history at a glance • Built-in rest timers • Tag sets however you like: RPE's, RIR's, warm-ups, targets etc. Track progress • Strength and volume trends • Workout consistency • Personal records • Workout and exercise notes Your data stays yours • Apple Health integration • iCloud sync • CSV export • Supports kg & lbs No sign-up. No questionnaires. No AI workout plans. No social feed. Just a simple workout log for getting stronger. Terms of Service: https://ironotes.app/terms-of-service Privacy Policy: https://ironotes.app/privacy-policy

Screenshots

S24 screens
Simple Workout Log4 screens

Verdict

The call

The clearest difference is review sentiment: Simple Workout Log at 93% against S2's 41%. Simple Workout Log also leads on rating (4.8 vs 4.1) and update cadence (every 2 days vs fortnightly). S2's advantage is monetization model (free with in-app purchases vs subscription). On price, ratings volume, ads and in-app purchases 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 Simple Workout Log sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Simple Workout Log holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 129 and 364 respectively. Written reviews point the same way: 41% of S2's written reviews are positive against 93% of Simple Workout Log's.

UpkeepUpdate frequency

S2 ships an update fortnightly, Simple Workout Log every 2 days. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
S2 versus Simple Workout Log: the parameters behind the verdict, then further details
ParameterS2Simple Workout Log
PriceFreeFree
Rating4.1 (129 ratings)4.8 (364 ratings) — better
Positive reviews41.3% of reviews93.0% of reviews — better
Number of ratings129364 — better
Update frequencyFortnightlyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS16.0 — better16.6
Further details — not scored
Size9 MB81 MB
Age rating12+4+
DeveloperFormbound ABArnas Dilys

Customer experience

S2

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

Simple Workout Log

All ratings364 ratings
Positive97.0%
Neutral1.9%
Negative1.1%
Written reviews57 reviews
Positive93.0%
Neutral1.8%
Negative5.3%

In-app purchases

2 purchases

S2

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

Simple Workout Log

Subscriptions5
  • Monthly Support$1.991 Month
  • Ironotes PRO Monthly7 Days trial$2.991 Month
  • Extra Monthly Support$3.991 Month
Show 2 more
  • Ironotes PRO Yearly7 Days trial$14.991 Year
  • Yearly Support$19.991 Year
One-time5
  • Protein Bar$2.99
  • Kebab & Salad$6.99
  • Gym Membership$19.99
Show 2 more
  • Ironotes PRO Forever$34.99
  • Supplement Stack$59.99

Questions

Is S2 free?
S2 is free to download, with in-app purchases available.
Is Simple Workout Log free?
Simple Workout Log is free to download, with in-app purchases available.
Which has better reviews, S2 or Simple Workout Log?
Simple Workout Log is rated higher. S2 averages 4.1 out of 5 from 129 ratings, while Simple Workout Log averages 4.8 from 364 ratings.
Do S2 or Simple Workout Log have ads?
Neither S2 nor Simple Workout Log shows ads.
Which is updated more often, S2 or Simple Workout Log?
S2 ships an update fortnightly, and Simple Workout Log every 2 days. Most recently, S2 was updated on October 20, 2026 and Simple Workout Log on October 25, 2026.

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