Comparison

MuscleLab vs CurlBro

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

Head to head
About

MuscleLab

Features
Read full description

MuscleLab is a focused strength training tracker for people who want to train consistently and see real progress over time. Start from a saved template, generate a workout from exercises you practise, or begin with an empty session. Log sets as you train, then finish with a clear summary of volume, time, sets, muscles, and exercise changes. Built for gym training: • Workout templates you can repeat • Recommended workouts from practising exercises and training type • Fast set, rep, weight, and duration logging • Warm-ups, supersets, circuits, and drop sets • Finished workout summaries with volume, time, sets, and muscle coverage • Workout history, exercise stats, and exercise history • Body measurements and progress trends • Coach tools for client sessions, templates, history, progress, and notes MuscleLab is not a social fitness feed or a calorie tracker. It is a clear training log for people who want the next workout to be easier to start and easier to understand afterward. Log workouts. Repeat what works. See progress.

About

CurlBro

This strength-training app allows users to build, run, and log detailed workout sessions. It features an offline-first design with no account or subscription required, focusing on a clean tool for experienced lifters.

Highlights
  • Drag-to-reorder workout builder
  • Superset grouping
  • Built-in workout templates
  • Per-set logging
  • Rest timer with Live Activity
  • Full workout history
  • Share/import workouts as text
Features
Read full description

Build a workout that fits your day, track every set, and see the work add up. CurlBro keeps planning, tracking, rest, and review in one place. Start with a built-in workout, make your own, or get a little help choosing what comes next. TRACK EVERY SET Record reps, weight, time, and distance. Adjust your sets as you go, add notes, and keep a clear record of what you actually did. TAKE YOUR REST Rest is part of the plan. Your timer can start automatically between working sets and superset rounds. Adjust it as you go, or keep an eye on it from the Lock Screen and Dynamic Island with Live Activities on supported iPhones. SEE THE WORK ADD UP Finish with a session summary, then explore your workout history, training volume, and exercise progress. Check what you lifted last time and how your training has changed over time. BUILD YOUR KIND OF WORKOUT Choose exercises, set reps and rest, arrange supersets, and save workouts to use again. Or let CurlBro put a session together around your time, equipment, and preferences, then make it your own. GET A LITTLE HELP WITH WHAT'S NEXT Find exercise suggestions based on the workout you're building. Explore additions, superset pairings, and alternatives when you want to change a movement. MAKE IT YOURS Create custom exercises, share your workouts, and import routines shared from CurlBro. You can also save completed strength workouts to Apple Health. You bring the effort. CurlBro keeps the details.

Screenshots

MuscleLab4 screens
CurlBro4 screens

Verdict

The call

MuscleLab and CurlBro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MuscleLab ships an update weekly, CurlBro every 11 days. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

ScorecardNo meaningful differences
MuscleLab versus CurlBro: the parameters behind the verdict, then further details
ParameterMuscleLabCurlBro
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyWeekly — betterEvery 11 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone
Requires iOS16.6 — better17.0
Further details — not scored
Size30 MB29 MB
Age rating12+4+
DeveloperIlya ValasiukSIMONE LONGO

In-app purchases

None

MuscleLab

No in-app purchases

None

CurlBro

No in-app purchases

Questions

Is MuscleLab free?
MuscleLab is free to download, with no in-app purchases.
Is CurlBro free?
CurlBro is free to download, with no in-app purchases.
Do MuscleLab or CurlBro have ads?
Neither MuscleLab nor CurlBro shows ads.
Which is updated more often, MuscleLab or CurlBro?
MuscleLab ships an update weekly, and CurlBro every 11 days. Most recently, MuscleLab was updated on October 5, 2026 and CurlBro on October 16, 2026.

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