Comparison

GymRest vs MUSMON

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

Head to head
About

GymRest

This app provides a streamlined interval timer designed for focused workouts. It features simple tap controls for starting, stopping, and resetting sets, with automatic cloud saving of timer settings. Alarms and notifications alert you when time is up.

Highlights
  • Tap to start/stop
  • Long press to set duration
  • Set and reset counting
  • Alarm and notification alerts
  • Automatic cloud saving
  • Minimalist interface
Features
Read full description

The most focused interval timer built for weight training. Features: · Tap to start / stop · Long press to set duration · Count your sets, long press to reset · Alarm and notification when time's up · Timer settings saved to the cloud automatically No menus. No settings screens. Just what you need.

About

MUSMON

Features
Read full description

[All-New] Get stronger as you train — Fitness x Monster Raising From one-tap logging to volume trends, personal bests, and per-muscle analysis, MUSMON is a serious workout tracker. And the more you train, the more your buddy monster grows and evolves, so you keep coming back. For hardcore lifters who manage by the numbers, and for anyone who wants to make training fun. The stronger you get, the stronger your monster. That's how you keep going. ■ No-compromise logging - Log in one tap: exercises, weight, reps and sets, accurately - Unlimited templates and history copy keep input effortless - Create your own exercises and routines freely ■ Manage your progress with data - Volume trends, personal bests and full history, all visualized - Track training volume per muscle group and spot imbalances at a glance - See real numbers, so you can push harder ■ Your reward is a monster - Earn EXP and eggs when you finish a workout - Raise and hatch eggs into monsters - Train more and they evolve, growing stronger and cooler ■ Collecting keeps you going - Gather unique monsters and complete your collection - Chase the rare ones and train again today ■ Level up with friends - Check out other users' monsters and collections - Add friends and push each other to get stronger ■ Premium (optional, auto-renewing subscription) For those who want to raise even more comfortably. - 5 training slots / 1.5x EXP / more eggs per workout / ad-free - Monthly and yearly plans (with a 14-day free trial) - All core features are free to use After the trial it automatically converts to a paid plan. It auto-renews unless canceled at least 24 hours before the period ends, and you can cancel anytime in your Apple ID settings. Prices are shown in the app. Terms of Use: https://rwakamatsu522.github.io/musmon-legal/terms-en.html Privacy Policy: https://rwakamatsu522.github.io/musmon-legal/privacy-en.html No HealthKit, no login required. Install and start right away. Train, raise, and get stronger.

Screenshots

GymRest3 screens
MUSMON4 screens

Verdict

The call

The clearest difference is in-app purchases: GymRest at none against MUSMON's 2. GymRest also leads on ads (none vs shown). MUSMON's advantage is update cadence (every 2 days vs every 22 months) and iOS requirement (13.0 vs 15.0). On price and device support 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. MUSMON sells 2 in-app purchases, starting at $1.99 per month. GymRest asks for nothing beyond the download.

UpkeepUpdate frequency

GymRest ships an update every 22 months, MUSMON every 2 days. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
GymRest versus MUSMON: the parameters behind the verdict, then further details
ParameterGymRestMUSMON
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 22 monthsEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size46 MB90 MB
Age rating4+4+
DeveloperSeito HoriguchiRei Wakamatsu

In-app purchases

None

GymRest

No in-app purchases

2 purchases

MUSMON

Subscriptions2
  • Premium (Monthly)14 Days trial$1.991 Month
  • Premium (Yearly)14 Days trial$14.991 Year

Questions

Is GymRest free?
GymRest is free to download, with no in-app purchases.
Is MUSMON free?
MUSMON is free to download, with in-app purchases available.
Do GymRest or MUSMON have ads?
MUSMON shows ads; GymRest does not.
Which is updated more often, GymRest or MUSMON?
GymRest ships an update every 22 months, and MUSMON every 2 days. Most recently, GymRest was updated on October 17, 2026 and MUSMON on October 24, 2026.

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