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 – built by lifters, for lifters ** Tired of downloading gym apps and creating an account, just to be locked out in a matter of days if you don’t pay or watch endless commercials? We offer 100% gains and 0% ads – with unlimited workout logging and free support for all users! This app is both a workout log and a source for proven strength training programs and tools that will help you reach your fitness goals. With it, you're able to log every workout, view and analyze your progress, find a workout routine that's right for you, create goals, and chase streaks. It’s truly built for lifters, by lifters (in cooperation with hundreds of thousands of other lifters). Have a feature suggestion? Drop us a line at app@strengthlog.com! Our goal is to make our free version the best strength training app on the market! Using it, you can log infinite workouts, add your own exercises, view basic statistics, and track your PRs (both singles and rep records). You’ll also get access to a big library of workouts and training programs for different training goals. If you level up to a premium subscription, you'll gain access to more advanced statistics, our full library of training programs, and our most hardcore features. You will also contribute to the continued development of the app, and we thank you greatly for that! Is that it? No, but it's easier to download the app and see for yourself the next time you're at the gym! Free Features: • Log an unlimited number of workouts. • A massive exercise library with both written and video instructions. • Lots of popular and proven workouts and training programs. • An exercise library with 500+ strength training, mobility, and cardio exercises, plus zero restrictions on how many exercises you can add yourself. • Complete our monthly challenges for added motivation. • A plate calculator that shows you how to load the barbell. • Plan your workouts in advance. • A workout rest timer. • Stats for training volume and workouts. • PR tracking. • Create training goals and streaks. • Several tools and calculators, like 1RM estimates and suggested warm-ups before PR attempts. • Share your data with Apple Health. As a subscriber, you'll also gain access to: • Our entire catalog of premium programs, including ones for individual lifts, powerlifting, bodybuilding, powerbuilding, push/pull/legs, and lots of sport-specific workout routines. • Advanced statistics for tracking and analyzing your strength, training volume, individual lifts/exercises, and more • Summary statistics for all your training, individual muscle groups, and every exercise. • Our muscles worked anatomy map shows how you’ve trained your muscle groups during any given period. • Create unlimited goals and streaks. • Share workouts and training programs with other users. • Advanced logging features include % of 1RM, Rate of Perceived Exertion, Reps in Reserve, and quick stats for every set. We're constantly updating the StrengthLog App with new programs, tools, and features based on our users' wishes! Subscriptions In-app, you can subscribe to our premium version of the StrengthLog App, in the form of automatically renewable subscriptions. • Choose between 1 month, 3 months, and 12 months. • Your subscription will be charged to your App Store account upon confirmation of purchase and will be renewed automatically if the subscription is not canceled at least 24 hours before the end of the current period. • An active subscription cannot be canceled before the active subscription period has ended. However, you can turn auto-renew on/off in your App Store account settings. --- Apple Health When giving the app permission to sync with Apple Health, we only share the information you request us to share – the app does not receive any data in return – and the data is only shared with your private Apple account.

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

Log your lifts in seconds. No account. No clutter. Just training. IronStack is built for lifters who want to stay focused in the gym, not fight with their app. Fast, streamlined workout logging and organization built for real world use. Now with dark mode. Start a workout, log your sets, and keep moving. Privacy comes first. Your data stays on your device, and you stay in control with no sign-ups, no friction, and no unnecessary data collection. LOG FAST. TRACK EVERYTHING. · Tap to log weight, reps, or duration · Quick +/- controls for instant adjustments · See your last session alongside each set · Built-in rest timer with one-tap presets · Automatic warm-up sets for any exercise · Workout and exercise notes BUILT-IN PROGRESS TRACKING · Automatic PR detection so you never miss a record · Track total volume across sessions · Share PRs with a clean visual card · Search your full workout history · Estimated 1RM and progress trends FULLY CUSTOMIZABLE EXERCISES · Filter by muscle group, equipment, and category · Video demos for every exercise · Create and manage as many custom exercises as you want · Track reps or duration APPLE WATCH INTEGRATION Train hands-free. Sync with your Apple Watch in real time. Log sets from your wrist, track calories and heart rate, and stay in the zone. ORGANIZED YOUR WAY Build your training library your way. Create folders, duplicate workouts, and structure everything to match how you train. IRONSTACK PRO OPTIONAL UPGRADE Unlock more powerful tools: · AI workout generation tailored to your goals · Training Insights with post-workout analysis and next-session suggestions · Advanced analytics with trends, charts, and smart targets · Visual plate calculator · Unlimited workouts Available as a one-time purchase or subscription. Built for lifters who want 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 3.6K against IronStack's 7. IronStack's advantage is update cadence (every 3 days vs every 10 days) and review sentiment (100% vs 89%). On price, rating, 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. 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 3.6K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 89% of StrengthLog's written reviews are positive against 100% of IronStack's.

UpkeepUpdate frequency

StrengthLog ships an update every 10 days, IronStack every 3 days. The most recent releases landed on September 25, 2026 and September 11, 2026 respectively.

Scorecard3 real differences · 7 level
StrengthLog versus IronStack: the parameters behind the verdict, then further details
ParameterStrengthLogIronStack
PriceFreeFree
Rating4.9 (3.6K ratings)4.9 (7 ratings)
Positive reviews89.5% of reviews100.0% of reviews — better
Number of ratings3.6K — better7
Update frequencyEvery 10 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod, Apple Watch
Requires iOS15.0 — better15.1
Further details — not scored
Size184 MB56 MB
Age rating4+4+
DeveloperStyrkelabbet ABMarcus Lorenzana

Customer experience

StrengthLog

All ratings3,634 ratings
Positive97.6%
Neutral1.3%
Negative1.1%
Written reviews371 reviews
Positive89.5%
Neutral4.0%
Negative6.5%

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?
StrengthLog and IronStack are both rated 4.9 out of 5 on the App Store, from 3.6K and 7 ratings respectively.
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 10 days, and IronStack every 3 days. Most recently, StrengthLog was updated on September 25, 2026 and IronStack on September 11, 2026.

Other comparisons