Comparison

Basalt Lab vs STARK

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

Head to head
About

Basalt Lab

This app meticulously logs your weightlifting sets and tracks progress with detailed statistics. It offers manual logging or advanced 'Lab' mode for seamless tracking, with Apple Watch integration and Live Activities for at-a-glance session updates. Unlock advanced features and historical data with a Pro subscription.

Highlights
  • Manual set logging
  • Advanced 'Lab' mode for tracking
  • Apple Watch integration
  • Live Activities and Dynamic Island support
  • 500+ exercises and 113 ready-made workouts
  • 47 detailed statistics
  • Plateau detection and 1RM projection
Features
Read full description

Every set you grind out deserves to be counted. Basalt Lab is the data discipline of a spreadsheet, built into native iOS: you train, the app keeps score, and your progress becomes visible, session after session. Two modes, depending on how you train: • Manual: log a set in a few taps and get back under the bar. • Lab (Pro): validate with a swipe and the rest rolls into the next set. Your phone fades into the background. YOUR SESSION, WITHOUT FRICTION • Your previous session replayed set by set (Pro): you know exactly what to beat today, and today's load wins when it's heavier. • Apple Watch: dial in reps and weight with the Digital Crown and log the set from your wrist, phone stays in the bag. • Live Activities + Dynamic Island: your session stays in sight on the Lock Screen; in Lab mode, your rest and your next set too. • 500 exercises, supersets (Pro), swap an exercise mid-session. • 113 ready-made workouts, sorted by goal and ready to start (41 free): you pick, the app runs it. PROOF YOU'RE MOVING • 47 statistics (14 included, +33 with Pro) built around the only question that matters: are you actually progressing? • Plateau detection (Pro): know it's stalling before you lose weeks to it. • Your 1RM projected at 3 and 6 months (Pro): see where you're headed, not just where you've been. • Push/Pull ratios, strength radar, an overtraining alert when your volume runs past your average (Pro). • Regularity heatmap, streaks and trophies: your consistency finally shows. • Your session heart rate (Apple Watch): the curve, your average and your max on your recap, plus your recovery with Pro. • Add past sessions to your calendar (Pro): your history stays complete, even when life gets in the way. • A session recap you can share as an image, when you have something to show. WHO IT'S FOR For serious lifters who want to progress without noise. No imposed coach, no childish badges, no social feed: nobody to impress, just you and your numbers. FREE VS PRO Free: unlimited workout journal, 14 statistics over the last 4 weeks, 3 custom sessions and 5 custom exercises (4 exercises per session), Manual mode, Watch, Live Activities, widget, trophies. Pro (monthly, or annual with a free trial): Lab mode, set-by-set prefill, the other 72 ready-made workouts, supersets and session comparison, past sessions, unlimited customization, unlimited stats history, +33 advanced statistics and the strength radar. THE METHOD, DOCUMENTED The average lifter who tracks their progress does better than 66% of those who don't (Harkin et al., 2016). Same program, app-guided: the sessions get done. Alone, one in two gets skipped (Gavanda et al., 2025). Studies on the methods: not on the app itself. YOUR DATA, YOURS Your workouts, loads and health data are never shared. Once you're signed in, the app works offline: your history lives on your device and belongs to you. Backups hosted in the EU (Paris). You rack the phone, you grab the bar. We keep count. Basalt Lab Pro: auto-renewable subscription. • Monthly: $7.99/month. • Annual: $49.99/year, i.e. $4.17/month. The annual plan starts with a free trial; the trial is granted once per Apple Account. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscription and turn off auto-renew in your Apple Account settings. Prices shown for the U.S. store; they may vary by country. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://basaltlab.app/privacy

About

STARK

Log gym workouts, track progress, and discover new exercises with this comprehensive fitness companion. Features include supersets, rest timers, and personalized programs. Sync data across devices and train with friends.

Highlights
  • Log exercises, sets, reps, weights, and rest times
  • Supersets, warm-up sets, and drop sets
  • Rest timer and interrupted workout resume
  • Full history, training volume, and personal records
  • Exercise library with demos and form cues
  • Ready-to-follow programs and custom workout builder
  • Apple Watch integration and Apple Health sync
Features
Read full description

The gym log that never slows you down. Log your sets in seconds, start your rest timer and watch your progress grow, workout after workout. Free to start, no ads, no account required. On iPhone and Apple Watch. At the gym or at home, STARK keeps your weights, reps and history in one place. Your last weights are right there: you know what to lift and stay focused on your workout. A WORKOUT LOG BUILT FOR THE GYM • Log exercises, sets, reps, weights and rest times • Supersets, warm-up sets and drop sets • Rest timer, resume an interrupted workout • Notes per exercise to remember how it felt and your machine settings TRACK YOUR PROGRESS • Full history, training volume and personal records • Work done per muscle group, week after week • Body weight tracking and progress photos • Import your previous history in JSON format +1,000 EXERCISES AND +30 PROGRAMS • Exercise library by muscle, with demos and form cues • Filter by equipment: barbell, dumbbells, machines, cable, bodyweight • Ready-to-follow programs: full body, upper/lower, PPL, PHUL, PHAT, StrongLifts 5Ɨ5… • Build your own workouts and organize your programs • Cardio, HIIT and WODs to mix up your training APPLE WATCH AND APPLE HEALTH • Follow your workout and manage rest times from your wrist • Save finished workouts to Apple Health, with your permission TRAIN WITH FRIENDS Start without an account. Create one later to sync your data across devices, find your friends, see their shared workouts and chat with them. STARK PREMIUM Unlock more programs and advanced progress analytics. STARK is a workout tracking tool. It does not replace medical advice or personal coaching. You train. You log. You progress. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Basalt Lab4 screens
STARK4 screens

Verdict

The call

Basalt Lab and STARK are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Basalt Lab sells 4 in-app purchases, starting at $5.99 per month and STARK sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. Both last shipped on October 29, 2026.

ScorecardNo meaningful differences
Basalt Lab versus STARK: the parameters behind the verdict, then further details
ParameterBasalt LabSTARK
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 3 daysEvery 3 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS17.017.0
Further details — not scored
Size139 MB86 MB
Age rating12+4+
DeveloperOtia LTD,AXEL PIERRE HUGO SAILLARD

Customer experience

Basalt Lab

Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

STARK

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Basalt Lab

Subscriptions4
  • Basalt Lab Pro$5.991 Month
  • Basalt Lab Pro$7.991 Month
  • Basalt Lab Pro3 Days trial$34.991 Year
Show 1 more
  • Basalt Lab Pro3 Days trial$49.991 Year
2 purchases

STARK

Subscriptions2
  • Stark Premium Monthly7 Days trial$4.991 Month
  • STARK Premium Yearly7 Days trial$39.991 Year

Questions

Is Basalt Lab free?
Basalt Lab is free to download, with in-app purchases available.
Is STARK free?
STARK is free to download, with in-app purchases available.
Do Basalt Lab or STARK have ads?
Neither Basalt Lab nor STARK shows ads.
Which is updated more often, Basalt Lab or STARK?
Basalt Lab ships an update every 3 days, and STARK every 3 days. Most recently, Basalt Lab was updated on October 29, 2026 and STARK on October 29, 2026.

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