OpenHIIT vs Ntrvl
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenHIIT
This open-source interval timer app helps optimize various activities like workouts, work sprints, and study sessions. It offers customizable timing, precise controls, and clear auditory and visual alerts to keep you motivated and on track. Users can also join a collaborative community to contribute to its development.
- Customizable interval timing
- Precise and user-friendly controls
- Auditory and visual alerts
- Open-source community collaboration
- Ad-free experience
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Enhance your daily routines with OpenHIIT, the versatile open-source interval timer app. Tailored for various activities, including but not limited to High-Intensity Interval Training (HIIT), OpenHIIT is a dynamic tool designed to optimize your tasks and foster a collaborative environment. OpenHIIT is free of ads and committed to providing an experience without in-app purchases or premium versions. Customizable Timing: Set intervals tailored to your preferences, whether it's for focused workouts, work sprints, or study sessions. Adapt OpenHIIT to your needs and make the most of your time. Precise Timing and User-Friendly Controls: Enjoy seamless sessions with accurate timing and intuitive controls. OpenHIIT ensures precision in intervals, allowing you to concentrate on your activities without disruptions. Stay in sync and maintain a steady pace throughout your tasks. Auditory and Visual Alerts: Stay informed and motivated with clear audio and visual alerts. OpenHIIT provides signals and indicators, keeping you aware of time changes without the need to glance at your device constantly. Keep your momentum going and stay on track. Open Source Collaboration: Join the collaborative spirit and become part of the OpenHIIT open-source community. Contribute to the app's development, suggest improvements, and share your ideas with users from various backgrounds. Together, we can shape the evolution of interval timers for diverse activities. Download OpenHIIT now to experience the flexibility and efficiency of an open-source interval timer. Take charge of your sessions, boost your productivity, and explore the full potential of OpenHIIT in various aspects of your daily life. Note: OpenHIIT is a project led by one individual with contributions from the community. Committed to quality and alignment with platform policies, OpenHIIT respects intellectual property rights.
Ntrvl
This interval timer app helps you set up and manage various workout routines like HIIT and Tabata. It provides haptic, audio, and visual cues to keep you focused. Track your workouts on Apple Watch and sync data with Apple Health.
- Customizable intervals
- Built-in workout presets
- Save custom workouts
- Apple Watch companion app
- Apple Health integration
- Haptic, audio, and visual cues
- Background audio support
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Ntrvl is an interval timer for iPhone and Apple Watch. Set up your workout in seconds and go. Haptic feedback, audio cues, and color changes keep you locked in without needing to look at your phone. Whether it's HIIT, circuit training, Tabata, or a simple work/rest routine, Ntrvl handles the timing so you can handle the work. Every workout can be tracked on Apple Watch and automatically saved to Apple Health, including active calories, heart rate, and workout duration. Start fast with built-in presets for Tabata, HIIT, EMOM, and Nordic 4x4 or build your own from scratch. Save up to 10 custom workouts and reorder them however you like so your go-to sessions are always one tap away. - Customizable work and rest intervals - Built-in presets: Tabata, Nordic 4x4, HIIT, EMOM - Save up to 10 custom workouts - Apple Watch companion with full workout controls - Workout tracking with automatic Apple Health sync - Drag-to-set time controls - Haptic, audio, and visual interval cues - Background audio support (keep your music playing) - Clean, glanceable interface
Screenshots
Verdict
The clearest difference is iOS requirement: OpenHIIT at 13.0 against Ntrvl's 26.2. 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for OpenHIIT against 5.0 for Ntrvl. Both are backed by a comparable volume of ratings — 9 and 7 respectively.
| Parameter | OpenHIIT | Ntrvl |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) | 5.0 (7 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | 7 |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 13.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 26 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Abigail Mabe | BRETT GOWERS RODGERS |
Customer experience
OpenHIIT
Ntrvl
In-app purchases
OpenHIIT
No in-app purchases
Ntrvl
No in-app purchases









