Comparison

MSCLS vs Let's Workout

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

Head to head
About

MSCLS

Features
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MSCLS is a focused strength-training tracker for the gym. Log every set with weight and reps, see exactly which muscles you trained on a full-body map, and watch your personal records fall - all in a clean, native iOS app. LOG EVERY SET, FAST - Type weight and reps, tap the circle to mark a set done with a satisfying haptic - New and routine sets carry greyed suggestions from your last session at the same gym, so you usually just tap to confirm - Mark sets as warm-up, drop set or failure from a long-press menu - Bodyweight and weighted-variant moves fold your body weight into your volume totals - Log gym cardio too - treadmill, rowing, cycling - with time and distance A WORKOUT FLOW THAT KEEPS UP - Phased exercise cards: the active card stays open, finished ones recap, and finishing a set auto-advances to the next exercise - Reorder, add, replace or remove exercises mid-session - A floating progress bar and "Set x of y" keep you oriented - Finishing and discarding take a deliberate second tap - discard holds a 3-second unlock so you never lose a session by accident SEE THE MUSCLES YOU TRAINED - An anatomical body map (male or female figure) shades each muscle from light to deep based on how hard you worked it - Per-week heatmap on the Profile tab - swipe back through recent weeks to spot neglected muscles - Muscle map on your post-workout summary and on every past workout - Pick your own heatmap color in Settings BEAT YOUR RECORDS - Live personal-record detection: beat a best and the set earns an instant trophy badge with a success haptic - Confetti on the summary when you set records - Records for heaviest weight, best set volume, longest cardio time and farthest distance - tracked per exercise and per gym - A full records browser, filterable by gym PROGRESS YOU CAN READ - History tab lists every workout newest-first with volume, sets, exercises and PR badges - Per-exercise charts: highest weight per session and total volume over time, with 1-month / 3-month / all-time ranges - drag to scrub the exact value - Weekly stats grid: workouts, volume, top muscle, PRs, peak heart rate and your training streak LIVE HEART RATE FROM APPLE WATCH - Start a workout on iPhone and your Apple Watch is woken automatically to stream live heart rate - you never touch the watch - Live BPM with a pulsing heart on the workout screen - Your watch shows an Apple-Workout-style page: elapsed time, current exercise, set progress and heart rate - Review a heart-rate chart with average and peak BPM after every session that recorded it ROUTINES & MULTIPLE GYMS - Build named routines (Push, Pull, Legs) by picking from the library; reorder them by dragging - Each routine starts pre-filled with your last-used numbers - "Up Next" tells you which routine comes next in your split - Track as many gyms as you train at - weights, suggestions and records are kept per location APPLE HEALTH & STRAVA - Save finished workouts to Apple Health as Strength Training sessions, automatically or on demand, written exactly once - Connect Strava and upload a session as a real strength activity - muscle heatmap, heart-rate chart, per-exercise breakdown and title - automatically or from any past workout 200+ EXERCISES - A built-in library of whole-body strength and cardio exercises, tagged by equipment and muscle - Smart search by name, muscle or equipment, with body-region chips - Long-press any exercise to peek its muscle map - Add your own exercises or tweak built-in ones BUILT FOR iOS - Apple's Liquid Glass design throughout - Live Activity on the Lock Screen and Dynamic Island with a self-ticking timer and live heart rate PRICING MSCLS unlocks with a monthly subscription that starts with a 30-day free trial, or a one-time lifetime purchase. The app is sold as-is with the feature set described here. Privacy Policy: https://mscls.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Let's Workout

Features
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The gym tracker that tells you the next weight — with a free AI Coach and no sign-up. Let's Workout is a workout log built for the middle of a set: big buttons, last session's numbers on screen, and a straight answer to "what do I lift today?". Logging works offline, and you never need an account. WHY THIS ONE • It tells you the next weight. Tap the weight on a set and it suggests the load: hit all your reps last time and it says go up; fall short and it says hold. • A free AI Coach, no sign-up. Ask about a lift or your week, get a recap after each workout and a weekly note, and build or improve a routine in seconds. Free within daily limits. Loads come from the app's rules; the AI never picks one on its own. • Genuinely offline. Logging, history, charts, plans and the written guides work with no signal. The AI Coach needs a connection. • Your data, your rules. Free CSV export, import from Hevy or Strong, and one tap to delete your data or your account. FAST WORKOUT LOGGING • Big buttons, a custom number pad and smart weight/reps prefills • Last session's numbers (PREVIOUS) on every set — beat them, tap, done • Log a set by voice: say "Bench press, 80 kilos, 10" and check it before saving • Optional voice coach: spoken rest cues with a 3-2-1 countdown • Warm-up, drop and failure sets, plus a one-tap warm-up generator • Auto rest timer with per-exercise overrides and a live notification • Plate calculator, supersets, reordering, notes and "repeat workout" • Cardio too: log time and distance AI COACH — OPTIONAL AND FREE • Ask the coach: "How is my bench press going?" or "Which lifts are stalled?" • A recap after every workout and a coach's note on your week • Build my program: answer a few questions — quick mode offline, or with AI • Improve a routine and see why each alternative fits when you swap an exercise • Physique check: from a front photo (and a back one if you like), see on your muscle map which muscles could use more training, with weekly set targets you review before anything changes. Separate consent, 18+. SEE YOURSELF GETTING STRONGER • Estimated 1RM, volume and consistency charts per exercise • Personal records tracked automatically, with a trophy the moment you beat one • Muscle heat map, body weight trend and monthly history stats 1,100+ EXERCISES WITH DEMOS AND GUIDES • Animated demos and anatomy diagrams of the muscles worked • A written guide for every exercise: setup, how-to, common mistakes, safety • Search by name, muscle or equipment; add your own exercises WORKOUT PLANS AND HABIT • Ready-made routines: ABC split, hypertrophy, 5Ɨ5 strength, glutes, calisthenics and more • Plan your week by weekday or as a rotation • Weekly goal with streaks, achievements and a weekly recap • Share a workout card or a routine your training partner can open and save APPLE WATCH AND APPLE HEALTH • Start today's routine, log sets and follow the rest ring on Apple Watch; cardio sets record time and distance • Rest timer on the Lock Screen as a Live Activity, with +15s and Skip (iOS 17 or later) • Optional Apple Health sync for finished workouts and body weight Let's Workout is free: logging, library, charts, plans and CSV export. The AI Coach is free within daily limits. Not a medical device: it does not diagnose, treat, cure or prevent any condition. AI Coach answers are general fitness information, not medical advice. Consult a healthcare professional for medical advice. Train. Track. Evolve.

Screenshots

MSCLS4 screens
Let's Workout4 screens

Verdict

The call

The clearest difference is in-app purchases: Let's Workout at none against MSCLS's 2. Let's Workout also leads on update cadence (every 2 days vs weekly) and iOS requirement (15.0 vs 26.1). MSCLS's advantage is ads (none vs shown). On price and device support there is nothing between them.

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. MSCLS sells 2 in-app purchases, starting at $1.99 per month. Let's Workout asks for nothing beyond the download.

UpkeepUpdate frequency

MSCLS ships an update weekly, Let's Workout every 2 days. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

Scorecard4 real differences Ā· 2 level
MSCLS versus Let's Workout: the parameters behind the verdict, then further details
ParameterMSCLSLet's Workout
PriceFreeFree
Update frequencyWeeklyEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, Apple WatchiPhone, iPod, Apple Watch — better
Requires iOS26.115.0 — better
Further details — not scored
Size23 MB109 MB
Age rating12+4+
DeveloperSebastian PlanggerOlivio Waldemar Becker Neto

In-app purchases

2 purchases

MSCLS

Subscriptions1
  • MSCLS — Monthly1 Month trial$1.991 Month
One-time1
  • MSCLS — Lifetime$29.99
None

Let's Workout

No in-app purchases

Questions

Is MSCLS free?
MSCLS is free to download, with in-app purchases available.
Is Let's Workout free?
Let's Workout is free to download, with no in-app purchases.
Do MSCLS or Let's Workout have ads?
Let's Workout shows ads; MSCLS does not.
Which is updated more often, MSCLS or Let's Workout?
MSCLS ships an update weekly, and Let's Workout every 2 days. Most recently, MSCLS was updated on October 6, 2026 and Let's Workout on October 15, 2026.

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