# Beat Watcher vs Interval Flow

The clearest difference is review sentiment: Beat Watcher at 86% against Interval Flow's 48%. Beat Watcher also leads on monetization model (freemium vs subscription) and iOS requirement (15.2 vs 18.6). Interval Flow's advantage is rating (4.7 vs 4.5). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Beat Watcher sells 2 in-app purchases, starting at $24.00 per year and Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. Whichever you choose, the download price is not the number that matters.

Interval Flow holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 87 and 167 respectively. Written reviews complicate that: 86% of Beat Watcher's written reviews are positive against 48% of Interval Flow's, so the app with the better star average is not the one people write more warmly about.

Beat Watcher ships an update weekly, Interval Flow fortnightly. The most recent releases landed on October 29, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Beat Watcher | Interval Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (87 ratings)](https://appshunter.io/ios/app/beat-watcher-heart-rate-alert/id1546373421/reviews) | **[4.7 (167 ratings)](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987/reviews)** |
| Number of ratings | 87 | **167** |
| Positive reviews | **86.4% of reviews** | 48.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | **Freemium** | Subscription |
| Size | 47 MB | 20 MB |
| Requires iOS | **15.2** | 18.6 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ganotis Holdings, Inc.](https://appshunter.io/developer/939480375) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## What reviewers say

### Beat Watcher

[App page](https://appshunter.io/ios/app/beat-watcher-heart-rate-alert/id1546373421)

This app monitors your heart rate and alerts you with sound and vibration when it goes above or below custom thresholds. It integrates with the Health app and offers background monitoring for continuous tracking, useful for stress management, breathing exercises, and conditions like POTS.

**Highlights:** Customizable heart rate thresholds, Audible and haptic alerts, Background monitoring, POTS and ME/CFS symptom tracking, Integration with Health app, Bluetooth chest strap support

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Access | $24.00 | per year |
| Lifetime Access | $50.00 | one-time |


### Interval Flow

[App page](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987)

This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.

**Highlights:** Color-coded intervals, Customizable circuits, Real-time progress tracking, Voice assist and search, Exercise library, Workout sharing

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month | $4.99 | per 3 months |
| 1 Month | $9.99 | per month |
| 1 Month, 3 day trial | $9.99 | per month |
| Annual | $14.99 | per year |
| 1 Year discounted | $25.95 | per year |
| 1 Year, 3 day trial | $39.99 | per year |
| 1 Year | $39.99 | per year |
| 1 Year Intro month | $39.99 | per year |
| Free Lifetime subscription | Free | one-time |
| Lifetime | $24.99 | one-time |

**What reviewers like**

- 👍 Nicely designed with good features
- 👍 Unique and brilliantly for keeping fit
- 👍 Simplicity gets it done

**What reviewers complain about**

- 🐛 App crashes on launch
- 🐛 App doesn't remember interval settings
- 🐛 App rearranges workout order
- 🐛 Cannot see questionnaire properly
- 🐛 Robot voice with no visual instructions

**Reported bugs**

- Programs deleted after update
- App crashes when adding a program
- Show/Hide Instructions adds time to interval
- App defaults to unused workout
- Cannot permanently skip to end of timed activity

**Requested features**

- Increase repetitions to 20
- Streamline adding intervals
- Make it possible to hide unused workouts
- Add music integration or option
- Provide visual instructions for moves


## Frequently asked questions

### Is Beat Watcher free?

Beat Watcher is free to download, with in-app purchases available.

### Is Interval Flow free?

Interval Flow is free to download, with in-app purchases available.

### Which has better reviews, Beat Watcher or Interval Flow?

Interval Flow is rated higher. Beat Watcher averages 4.5 out of 5 from 87 ratings, while Interval Flow averages 4.7 from 167 ratings.

### Do Beat Watcher or Interval Flow have ads?

Neither Beat Watcher nor Interval Flow shows ads.

### Which is updated more often, Beat Watcher or Interval Flow?

Beat Watcher ships an update weekly, and Interval Flow fortnightly. Most recently, Beat Watcher was updated on October 29, 2026 and Interval Flow on October 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*