Interval Workout Fitness Timer vs MuscleTrainingTimer
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Interval Workout Fitness Timer
This app provides an optimized interval timer for various training routines, including strength and trunk training. It offers essential features like voice countdowns, vibration alerts, and background operation to support your workouts. Customize your training sessions with simple or personalized timers.
- Simple and customizable timers
- Voice countdowns
- Vibration notifications
- Background operation
- Remaining time animation
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Concentrated training with interval timer optimized for training! It can be used for strength training, interval training, trunk training, etc. Functions essential to the training timer, such as voice count, vibration, movement in the background, etc. are complete. It is also recommended for good people who can customize their name and order by themselves even for simple people with a simple timer. About This application is an interval timer optimized for training. There is a simple timer that sets exercise time and break time for the first time and a custom timer that you can customize exercise name and order yourself. Features 1.Simple timer and customizable timer The first screen is a simple interval timer that alternates exercise time and break time. There is also a custom timer that you can edit your own exercise. 2. Voice count When the remaining time becomes 3 seconds, the voice down countdown begins. You can choose from four types of voice. 3. Vibration notification Vibration notification at the end of the exercise is available. (You can turn it off by setting) 4. Behavior in the background Processing will continue even when you switch to the background, such as locking with the power button or opening other applications. Voice and vibration of the countdown will also be executed during locking. 5. Animation to know the remaining time You can see at a glance the percentage of remaining time that decreases as time progresses.
MuscleTrainingTimer
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The all-in-one interval timer for HIIT, Tabata, circuit & strength training β 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. β 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 β SOUND & MUSIC - 50+ sound effects: per-second ticks, interval signals, countdown & finish cues - Layers over your music β 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 β 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 β 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 β 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 β 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 β 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
Verdict
The clearest difference is in-app purchases: Interval Workout Fitness Timer at none against MuscleTrainingTimer's 1. Interval Workout Fitness Timer also leads on iOS requirement (11.0 vs 16.0). MuscleTrainingTimer's advantage is update cadence (every 9 days vs monthly). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. MuscleTrainingTimer sells 1 one-off in-app purchase. Interval Workout Fitness Timer asks for nothing beyond the download.
Interval Workout Fitness Timer ships an update monthly, MuscleTrainingTimer every 9 days. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.
| Parameter | Interval Workout Fitness Timer | MuscleTrainingTimer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 64.0% of reviews | β |
| Update frequency | Monthly | Every 9 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 11.0 β better | 16.0 |
| Further details β not scored | ||
| Size | 24 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Yudai Fukuda | ryo muranaka |
In-app purchases
Interval Workout Fitness Timer
No in-app purchases
MuscleTrainingTimer
- Lifetime Pro$19.99
Questions
Is Interval Workout Fitness Timer free?
Is MuscleTrainingTimer free?
Do Interval Workout Fitness Timer or MuscleTrainingTimer have ads?
Which is updated more often, Interval Workout Fitness Timer or MuscleTrainingTimer?
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