Box Interval Timer vs BellWork
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Box Interval Timer
This app provides customizable timers for combat sports and interval training. Track your progress with saved workouts and statistics. Supports multiple languages and offers live activity on the lock screen.
- Combat sports presets
- Customizable interval training
- Workout history and statistics
- 10-second warning sound
- Live activity on lock screen
- Multi-language support
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Box Interval Timer is the professional timer for combat sports athletes and fitness enthusiasts. FIGHT TIMER Presets for Boxing, MMA, K1, Muay Thai, BJJ, Judo, Wrestling and Taekwondo. Or create custom profiles with your own round times and rest periods. INTERVAL TRAINING Intense HIIT training for running, treadmill, air bike and bag work - for beginners, intermediate and advanced athletes. Fully customizable. TRACK YOUR PROGRESS All workouts are saved automatically. Follow your progress in History and Statistics. FEATURES - 8 Combat Sports Presets - Create Custom Profiles - Interval Training with Presets - Workout History and Statistics - 10-Second Warning Sound - Live Activity on Lock Screen - 6 Languages: German, English, Arabic, Spanish, French, Russian The app is free. If you enjoy it, you can optionally leave a tip to support development.
BellWork
This app provides a customizable interval timer for various training styles like combat sports and HIIT. It offers clear audio and haptic cues to guide users through workouts, with a focus on a clean, distraction-free interface. Users can review workout summaries to track progress and build consistency.
- Customizable training profiles
- Clear audio and haptic cues
- Full-screen timer display
- Workout summary review
- Flexible round controls
- Touch lock option
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BellWork: Rounds & HIIT is a focused interval timer for combat sports, HIIT, and structured conditioning. Build custom training profiles for boxing, kickboxing, MMA, bag work, circuits, sprints, and high-intensity workouts, then let clear cues guide every round. Set warm-up, prepare, work, rest, cooldown, round count, warning alerts, auto-start behavior, sound style, and haptics. BellWork gives you flexible controls without clutter, so setup stays fast before training begins. During a workout, a bold full-screen timer shows your current phase, round progress, and what is coming next. Countdown alerts, audio cues, haptics, and optional touch lock help you stay locked in without accidental taps or constant screen checks. After each session, review your workout summary and recent training history so you can see what you completed and keep building consistency. Clean, dark, and built to stay out of the way, BellWork keeps the round moving.
Screenshots
Verdict
The clearest difference is in-app purchases: BellWork at none against Box Interval Timer's 3. BellWork also leads on update cadence (weekly vs monthly). On price, rating, ratings volume and ads 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. Box Interval Timer sells 3 one-off in-app purchases. BellWork asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Box Interval Timer against 5.0 for BellWork. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Box Interval Timer ships an update monthly, BellWork weekly. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.
| Parameter | Box Interval Timer | BellWork |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Diyar Kaymaz | Daniel Chen |
In-app purchases
Box Interval Timer
- Small Coffee$0.99
- Sponsor a Training$2.99
- Big Thank You$12.99
BellWork
No in-app purchases









