Comparison

SuperSlowTrainingTimer vs MuscleTrainingTimer

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

Head to head
About

SuperSlowTrainingTimer

This app guides you through slow training exercises with voice and screen prompts for lifting, holding, and lowering. Create custom training menus with adjustable repetitions, sets, and intervals. Supports background operation and dark mode for convenient use during workouts.

Highlights
  • Voice and screen counting for movements
  • Customizable training menus
  • Adjustable reps, sets, and intervals
  • Background operation support
  • Dark mode display
  • Silent mode operation
Features
Read full description

SuperSlowTrainingTimer is a timer application with a read-out function dedicated to slow training. It counts the movements that are important in slow training, such as lifting slowly, holding, and lowering slowly which are important in slow training, are counted by voice and screen display. You can create as many training menus as you want. The number of seconds, number of repetitions, interval time, and number of sets for each movement can be set freely. Dark mode display, background operation, and operation without releasing silent mode are also supported. It also supports dark mode display, background operation, and operation without releasing silent mode. It can be used for weight training, muscle training at home, toning up a lax body, maintaining muscle strength, and rehabilitation. It can be used for weight training, muscle training at home, toning up a lax body, maintaining muscle strength, rehabilitation, and as a reliable companion for slow training. <What is "slow training"?> Slow training is a training method that allows you to increase the load on your muscles by performing muscle training in slow motion. Slow training is a training method that increases the load on the muscles by training them in slow motion. Even with a small number of repetitions, the effect is tremendous. By moving slowly, the load on the joints is also reduced, thus reducing the risk of injury. <The following items can be set> ・The number of seconds to count down to the start  ・Name of the training menu ・Number of seconds to move (raise or lower) ・Number of seconds to hold ・Number of seconds to return (lower/lower/up) ・Number of repetitions ・Interval between reps ・Number of sets ・Interval between sets ・Counting voice <Features of the app> ・Count each movement (move, hold, return) with voice and display. ・You can create as many training menus as you like. ・You can choose the type of voice that counts. ・Push notifications for today's workout. ・Tap the notification and start working out immediately. ・Cool dark mode display. ・Can be used without deactivating silent mode

About

MuscleTrainingTimer

Features
Read full description

The all-in-one interval timer for HIIT, Tabata, circuit & strength training — designed by a Physical Therapist. Build multi-exercise routines, keep your own music playing, and stay on pace with 50+ sound cues, Live Activities, and 26 customizable themes. ■ WORKOUT BUILDER - Combine multiple exercises into one routine with rounds and rest between blocks - Ladder workouts like 21-15-9, plus reps-based or time-based intervals - Cooldown periods and per-block notes for weight, distance or target reps - Start instantly with ready-made presets ■ SOUND & MUSIC - 50+ sound effects: per-second ticks, interval signals, countdown & finish cues - Layers over your music — plays on top without stopping Apple Music, Spotify or podcasts - Turn individual sounds on/off; spoken cues announce "Work", "Rest" and more - Background playback with the screen locked, plus haptic feedback ■ CONTROLS - Start, pause, resume, reset - Skip to the next phase or step back to the previous one - Voice commands ("Start", "Pause", "Reset") and Siri Shortcuts ■ MAKE IT YOURS - 26 color themes or build your own palette - Ring or linear layout, solid or glass background, adjustable spacing - Live Activity & Dynamic Island show your phase and time on the Lock Screen ■ ORGANIZE & SHARE - Full-text search, favorites, and sorting by usage, created or updated date - Share routines by QR code or link, and save your own templates - Log sets with weight, reps & notes; auto-sync to Apple Health - Workout reminders on the days and times you choose ■ FREE & PRO Use the core timer for free. Upgrade to Pro for unlimited menus, multi-block workouts, Live Activities, custom themes, Apple Health sync, voice control, reminders & more — monthly, yearly, or one-time lifetime. ----------Designed by a Physical Therapist-------------- This app was developed by a physical therapist. Exercises performed with efficient time management are easier to sustain and more effective. Whether you train at the gym, do CrossFit or yoga, study, or work through rehabilitation, preset values let you start right away. Free sound files from Springin Sound Stock https://www.springin.org/sound-stock/ Free sound files from Sound Effect Labo https://soundeffect-lab.info/ Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SuperSlowTrainingTimer4 screens
MuscleTrainingTimer1 screens

Verdict

The call

The clearest difference is ads: MuscleTrainingTimer at none against SuperSlowTrainingTimer's shown. MuscleTrainingTimer also leads on update cadence (every 9 days vs every 3 weeks) and iOS requirement (16.0 vs 18.0). On price, in-app purchases 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. SuperSlowTrainingTimer sells 1 one-off in-app purchase and MuscleTrainingTimer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SuperSlowTrainingTimer ships an update every 3 weeks, MuscleTrainingTimer every 9 days. The most recent releases landed on June 2, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
SuperSlowTrainingTimer versus MuscleTrainingTimer: the parameters behind the verdict, then further details
ParameterSuperSlowTrainingTimerMuscleTrainingTimer
PriceFreeFree
Rating3.7 (3 ratings) — better
Positive reviews100.0% of reviews
Number of ratings3 — better
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS18.016.0 — better
Further details — not scored
Size12 MB20 MB
Age rating4+4+
DeveloperKENICHI YAMAMOTOryo muranaka

In-app purchases

1 purchases

SuperSlowTrainingTimer

One-time1
  • Remove ADs$3.99
1 purchases

MuscleTrainingTimer

One-time1
  • Lifetime Pro$19.99

Questions

Is SuperSlowTrainingTimer free?
SuperSlowTrainingTimer is free to download, with in-app purchases available.
Is MuscleTrainingTimer free?
MuscleTrainingTimer is free to download, with in-app purchases available.
Do SuperSlowTrainingTimer or MuscleTrainingTimer have ads?
SuperSlowTrainingTimer shows ads; MuscleTrainingTimer does not.
Which is updated more often, SuperSlowTrainingTimer or MuscleTrainingTimer?
SuperSlowTrainingTimer ships an update every 3 weeks, and MuscleTrainingTimer every 9 days. Most recently, SuperSlowTrainingTimer was updated on June 2, 2026 and MuscleTrainingTimer on September 14, 2026.

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