Best Interval Timer vs Custom Interval Timers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Best Interval Timer
This app acts as your personal coach, guiding you through workouts with customizable routines. Focus on your exercise while it manages timing for warm-up, high/low intensity intervals, cool-downs, and rest periods.
- Customizable workout routines
- Warm-up, intensity, cool-down, rest periods
- Background and multitasking support
- Adjustable interval sounds and vibrations
- Workout practice tracking
- Landscape and portrait orientation
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This app is like your personal coach, just focus on your workout without having to worry about time, Best Interval Timer will lead you to finish them perfectly. There is one default routine in this free version, but you can edit it to your own one which include warm-up, high/low intensity, cool down and rest time etc, you can custom as many sets as you wish to do. Key Features: ⁃ One default routine. ⁃ Big readable counting down time. ⁃ Start, pause or reset routine. ⁃ Warm up, low intensity, high intensity, cool down, rest time. ⁃ Support background, foreground playing and multitasking. ⁃ Music plays. ⁃ Vibrate or not. ⁃ 15 interval switch sounds. ⁃ 12 background interval pictures available. ⁃ Show number of times you have practiced of one routine. ⁃ Support landscape and portrait. ⁃ Create one reminder to alert you doing your workout. ⁃ Supports universal version. If you have any question or suggestion, please send email to our support userfeed@vip.tom.com.
Custom Interval Timers
Design personalized interval timers for workouts or productivity. Its intuitive editor allows for custom flows with various settings like countdowns and personalized interfaces. Offers light/dark modes and an option to disable ads.
- Customizable interval flows
- Intuitive timer editor
- Count up or down timers
- Personalized running interface
- Light/dark mode
- Ad-free option
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Create highly customizable interval timers in a beautiful Interface. Interval timers are useful for exercise, like High-intensity interval training (HIIT) or Tabata, and can also be used to manage productivity, events, and more! This app provides a fascinatingly simple and intuitive editor for setting up your own custom timers. With just a few building blocks you can create the exact experience you want. Multiple settings to match your preferences: - Count up or down - Personalize the running interface to show what matters to you - Light/dark mode - Disable ads for free!
Screenshots
Verdict
The clearest difference is rating: Custom Interval Timers at 5.0 against Best Interval Timer's 4.6. Custom Interval Timers also leads on update cadence (every 4 months vs every 12 months) and review sentiment (100% vs 89%). Best Interval Timer's advantage is ratings volume (81 vs 14). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Custom Interval Timers holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Best Interval Timer has 81 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 89% of Best Interval Timer's written reviews are positive against 100% of Custom Interval Timers's.
Best Interval Timer ships an update every 12 months, Custom Interval Timers every 4 months. The most recent releases landed on October 2, 2026 and September 22, 2026 respectively.
| Parameter | Best Interval Timer | Custom Interval Timers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (81 ratings) | 5.0 (14 ratings) — better |
| Positive reviews | 89.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 81 — better | 14 |
| Update frequency | Every 12 months | Every 4 months — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 19 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | 倩 赵 | Alex Rich |
Customer experience
Best Interval Timer
Custom Interval Timers
Bugs and requests
Best Interval Timer
Reported bugs
7 issues- App stops working after rating notification
- Buttons don't work after rating notification
- Crashes when saving timers
- Crashes when editing exercises
- Freezes and stops working
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- Lost all timers after reinstalling
- Side view unusable
Requested features
10 requests- Ability to save multiple intervals/routines
- Voice cues for start/stop
- Apple Watch compatibility
- Larger buttons and text
- Option to save different schedules (e.g., Tabata)
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- Fix crashing when saving timers
- Fix crashing when editing exercises
- Improve side view usability
- Remove ads or reduce frequency
- Option to have cool down at the end of all intervals
Custom Interval Timers
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Best Interval Timer
No in-app purchases
Custom Interval Timers
No in-app purchases
Questions
Is Best Interval Timer free?
Is Custom Interval Timers free?
Which has better reviews, Best Interval Timer or Custom Interval Timers?
Do Best Interval Timer or Custom Interval Timers have ads?
Which is updated more often, Best Interval Timer or Custom Interval Timers?
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