Comparison

StrengthLog vs IronStack

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

Head to head
About

StrengthLog

Track your workouts, analyze progress, and discover proven strength training programs. Log unlimited workouts, access a vast exercise library, and set goals. Upgrade for advanced statistics and premium programs.

Highlights
  • Unlimited workout logging
  • Extensive exercise library with video instructions
  • Proven strength training programs
  • Progress analysis and statistics
  • Goal setting and streak tracking
  • Plate calculator and rest timer
  • Apple Health integration
Features
Read full description

THE WORLD’S MOST GENEROUS WORKOUT TRACKER StrengthLog is the workout tracker for people who take their training seriously, whether you’re just getting started or have been lifting for decades. Plan your training. Log every set. Track your progress. Follow proven training programs or build your own. Compare your strength with other lifters. Set goals, build streaks, and challenge your friends. And unlike many workout apps, StrengthLog gives you everything you need to train effectively for free. Unlimited workout logging. No ads. No trial that suddenly locks you out. 100% gains, 0% ads. BUILT FOR LIFTERS, BY LIFTERS StrengthLog has been developed together with hundreds of thousands of lifters, from beginners to competitive strength athletes. Our library contains 600+ strength, cardio, and mobility exercises with instructions and videos. You can also create your own exercises. Log as you train or plan ahead with our calendar. Follow a ready-made training program, build your own, or simply decide what to do when you get to the gym. Your training history, PRs, statistics, and Strength Levels make it easy to see where you’ve been and where you’re going. TRAIN TOGETHER Connect with friends and make your training a little more social. See when your friends train, celebrate their progress, compare PRs and Strength Levels, and create or join challenges together. Challenge each other to train more often, do more reps, or reach whatever ridiculous goal you can come up with. You choose who you connect with, and your full training log stays private. FREE FEATURES • Log unlimited workouts, forever. • Support for both kg and lbs. • 600+ exercises with instructions and videos. • Create unlimited custom exercises. • Follow popular workouts and training programs. • Build your own routines and programs with linear progression. • Plan workouts and programs in your training calendar. • Track PRs and exercise history. • Compare your strength with other lifters using Strength Levels. • Track training volume, workouts, and other statistics. • Create training goals and streaks. • Complete our monthly challenges. • Connect with friends and challenge each other. • Use our rest timer and plate calculator. • Estimate your 1RM and get suggested PR warm-ups. • Track body measurements and progress pictures. • Connect with Apple Health. GO PREMIUM StrengthLog Premium unlocks our most advanced tools while supporting the continued development of the app. Premium includes: • Build unlimited training routines and programs with double and triple progression. • Our complete library of training programs for strength, bodybuilding, powerlifting, powerbuilding, sports, and more. • Advanced statistics for your training, muscle groups, and exercises. • Muscle heat maps showing what you’ve trained over any period. • Customizable favorite graphs. • Advanced logging with RPE, Reps in Reserve, % of 1RM, and quick set stats. • More tools for analyzing and planning your training. • Unlimited goals and streaks. • Connect your account to ChatGPT or Claude using our MCP integration. Whether you want a simple workout log or enough training data to disappear down a statistical rabbit hole for an entire evening, StrengthLog has you covered. Have an idea, found a bug, or just want to tell us what you think? Contact us at app@strengthlog.com. SUBSCRIPTIONS StrengthLog Premium is an automatically renewing subscription. • Choose between 1, 3, and 12 months. • Your App Store account will be charged upon purchase and your subscription will renew automatically unless canceled at least 24 hours before the end of the current period. • You can manage or turn off auto-renewal in your App Store account settings. APPLE HEALTH With your permission, StrengthLog can read relevant data from Apple Health and share your completed workouts with it. You control what data StrengthLog can read or write through your Apple Health permissions.

About

IronStack

Log your gym workouts quickly and efficiently with this streamlined strength training app. Track progress, set personal records, and customize exercises without unnecessary clutter or account creation. Offers optional Pro features for advanced insights and AI-generated workouts.

Highlights
  • Fast workout logging
  • Automatic PR detection
  • Built-in rest timer
  • Customizable exercises
  • Apple Watch integration
  • Workout history search
  • Optional AI workout generation
Features
Read full description

A simpler way to log your workouts and see your progress. If you currently track your lifts in a notebook, Notes, or a spreadsheet, IronStack gives you the same straightforward experience—with less effort and better progress tracking. No account. No clutter. Just open your workout, log your sets, and keep training. Your workout data stays on your device. There are no required sign-ups, social feeds, or unnecessary distractions. SIMPLE WORKOUT LOGGING · Log weight, reps, or duration in seconds · Use quick +/- controls to make adjustments · See what you lifted last time beside every set · Automatically generate warm-up sets · Use the built-in rest timer · Add notes to workouts and exercises SEE YOUR PROGRESS IronStack turns your workout history into useful progress tracking—without requiring you to manage a complicated spreadsheet. · Automatically detect personal records · Track training volume over time · View estimated one-rep maxes and progress trends · Search your complete workout history · Share PRs with clean visual cards TRAIN YOUR WAY · Create your own exercises · Track exercises by reps or duration · Filter exercises by muscle group, equipment, or category · Access video demonstrations · Organize workouts into folders · Duplicate and customize workout routines APPLE WATCH INTEGRATION Log sets from your wrist while you train. Sync workouts with your Apple Watch in real time, track heart rate and calories, and spend less time reaching for your phone. IRONSTACK PRO Unlock additional training tools with one lifetime purchase—no subscription required. · AI workout generation based on your goals · Post-workout insights and next-session suggestions · Advanced trends, charts, and training targets · Visual plate calculator · Unlimited workouts Whether you follow a detailed program or simply want to record what you lifted today, IronStack keeps workout tracking fast, organized, and out of your way. Less app. More training. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

StrengthLog4 screens
IronStack4 screens

Verdict

The call

The clearest difference is ratings volume: StrengthLog at 3.7K against IronStack's 7. StrengthLog also leads on device support (4 vs 2). IronStack's advantage is review sentiment (100% vs 88%). On price, rating, 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. StrengthLog sells 3 in-app purchases, starting at $16.90 per month and IronStack sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for StrengthLog against 4.9 for IronStack. That said, the two scores are not equally well evidenced: StrengthLog has 3.7K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 88% of StrengthLog's written reviews are positive against 100% of IronStack's.

UpkeepUpdate frequency

StrengthLog ships an update every 6 days, IronStack every 4 days. Both last shipped on October 25, 2026.

Scorecard3 real differences · 7 level
StrengthLog versus IronStack: the parameters behind the verdict, then further details
ParameterStrengthLogIronStack
PriceFreeFree
Rating4.9 (3.7K ratings)4.9 (7 ratings) — better
Positive reviews88.0% of reviews100.0% of reviews — better
Number of ratings3.7K — better7
Update frequencyEvery 6 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS15.0 — better16.4
Further details — not scored
Size158 MB59 MB
Age rating12+4+
DeveloperStyrkelabbet ABZanaWorks LLC

Customer experience

StrengthLog

All ratings3,695 ratings
Positive97.5%
Neutral1.3%
Negative1.2%
Written reviews393 reviews
Positive88.0%
Neutral4.3%
Negative7.6%

IronStack

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

StrengthLog

Reported bugs

3 issues
  • Disappearing workout data
  • Inability to clear/reset workout history
  • Inconsistent behavior when planning workouts for the same day

Requested features

4 requests
  • Ability to save and edit custom workout plans
  • Seamless integration with Apple Health
  • Community features like challenges and leaderboards
  • More personalized workout recommendations

IronStack

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

StrengthLog

Subscriptions3
  • StrengthLog Premium - 1 month14 Days trial$16.901 Month
  • StrengthLog Premium - 3 months14 Days trial$37.903 Months
  • StrengthLog Premium - 1 year14 Days trial$109.001 Year
3 purchases

IronStack

Subscriptions2
  • Pro Monthly$2.991 Month
  • Pro Yearly$19.991 Year
One-time1
  • IronStack Lifetime Unlock$39.99

Questions

Is StrengthLog free?
StrengthLog is free to download, with in-app purchases available.
Is IronStack free?
IronStack is free to download, with in-app purchases available.
Which has better reviews, StrengthLog or IronStack?
IronStack is rated higher. StrengthLog averages 4.9 out of 5 from 3.7K ratings, while IronStack averages 4.9 from 7 ratings.
Do StrengthLog or IronStack have ads?
Neither StrengthLog nor IronStack shows ads.
Which is updated more often, StrengthLog or IronStack?
StrengthLog ships an update every 6 days, and IronStack every 4 days. Most recently, StrengthLog was updated on October 25, 2026 and IronStack on October 25, 2026.

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