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 your weightlifting sessions, track personal records, and plan custom routines. Features animated exercise demos, rest timers, and progress visualization. Integrates with Apple Health and Apple Watch for comprehensive fitness tracking.

Highlights
  • Log sets, reps, and weights
  • Supersets and drop sets support
  • Rest timer with notifications
  • Animated exercise demos
  • Build custom workout programs
  • Track progress and personal records
  • Apple Health and Watch integration
Features
Read full description

Log your sets, track your weights and follow your personal records with STARK, your gym workout tracker for iPhone and Apple Watch. Plan your routines and see your progress, workout after workout. LOGGING WITHOUT FRICTION • Exercises, sets, reps, weights and notes, entered in a few taps. • Supersets, warm-up sets, drop sets, per-side entry. • Help counting the weight loaded on the bar. • Rest timer with notification: the alert fires even with the screen locked. • Train together with a friend. • Cardio logged in the same place as lifting. • Interrupted workouts resume automatically. 1,394 EXERCISES • Animated demo and form cues for every movement. • Filter by muscle, level and equipment, and by machine brand to find the gear at your gym. • Add your own exercises. PROGRAMS • Build your own programs, or generate a workout for your time and equipment. • Organize programs, workouts and exercises in folders. • A first-workout guide to get you started. YOUR PROGRESS • History per exercise, personal records, volume per muscle group. • Muscle balance: what you train, and what you skip. • Body weight tracking and progress photos. APPLE HEALTH AND APPLE WATCH • Finished workouts are saved to Apple Health. • Body weight and heart rate are read from Health if you allow it. • The Apple Watch app shows the current set and starts your rest from the wrist. WITH FRIENDS • Add friends, see their finished workouts, react and comment. • Report and block any content posted by another account. SWITCH APPS WITHOUT LOSING ANYTHING Import your history from another lifting app (CSV file): exercises are matched to the catalog, and importing the same file again never creates duplicates. NO ACCOUNT NEEDED Start right away as a guest. Creating an account keeps the workouts you've already logged and syncs them across devices. STARK+ The STARK+ subscription unlocks the full program catalog, the unlimited generator, the adaptive coach that suggests weight changes, in-depth analytics (estimated 1RM, sets per muscle, weekly review), unlimited chart history, unlimited custom exercises, plus extra themes and icons. It also funds the app, built by a single developer. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel it from your App Store account. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ STARK Terms: https://starkworkout.app/terms-of-use Privacy Policy: https://starkworkout.app/privacy-policy

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. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

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 MB94 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 reviews2 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 31, 2026 and STARK on November 1, 2026.

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