# Tabata Pro HIIT Interval Timer vs Chatham Works

The clearest difference is in-app purchases: Chatham Works at none against Tabata Pro HIIT Interval Timer's 5. Tabata Pro HIIT Interval Timer's advantage is ratings volume (18K vs 1) and update cadence (fortnightly vs monthly). On price, rating, ads and device support there is nothing between them.

Both are free to download. Tabata Pro HIIT Interval Timer sells 5 in-app purchases, starting at $9.99 per year. Chatham Works asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Tabata Pro HIIT Interval Timer against 5.0 for Chatham Works. That said, the two scores are not equally well evidenced: Tabata Pro HIIT Interval Timer has 18K ratings behind it against 1, so its average is the more settled of the two.

Tabata Pro HIIT Interval Timer ships an update fortnightly, Chatham Works monthly. The most recent releases landed on November 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Tabata Pro HIIT Interval Timer | Chatham Works |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (18K ratings)](https://appshunter.io/ios/app/tabata-pro-hiit-interval-timer/id346432063/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chatham-works/id1470975736/reviews)** |
| Number of ratings | **18K** | 1 |
| Positive reviews | 64.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 34 MB | 190 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SIMPLETOUCH LLC](https://appshunter.io/developer/285750159) | [DATIVE INC.](https://appshunter.io/developer/1470975735) |

## What reviewers say

### Tabata Pro HIIT Interval Timer

[App page](https://appshunter.io/ios/app/tabata-pro-hiit-interval-timer/id346432063)

This app is a versatile interval timer designed for high-intensity interval training (HIIT) and Tabata workouts. It features an interactive coach, customizable alerts, music control, and integration with Apple Health for progress tracking.

**Highlights:** HIIT and Tabata interval timer, Interactive speaking coach, Workout DJ music control, Customizable timing and alerts, Apple Health integration, Apple Watch app

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro+ Annual | $9.99 | per year |
| Pro 3 Months | $9.99 | per 3 months |
| Pro Yearly | $9.99 | per year |
| Pro 6 Months | $14.99 | per 6 months |
| Pro Year | $19.99 | per year |

**What reviewers like**

- 🚀 Simple and effective
- 🔒 Reliable timer
- 👍 Easy to use interface
- 💡 Customizable settings
- 👍 Good for HIIT and Tabata workouts

**What reviewers complain about**

- 🐛 Freezes or crashes on newer devices
- 🔋 High battery consumption
- 🔒 Subscription model issues for existing users
- 👎 Forced upgrades and inability to use previous paid version

**Reported bugs**

- Music playback issues
- Timer inaccuracies or premature completion
- Inability to restore previous purchases

**Requested features**

- Ability to name and save custom timers
- Apple Watch integration
- More sound/voice options
- Total workout time display
- Halfway point alerts during intervals


### Chatham Works

[App page](https://appshunter.io/ios/app/chatham-works/id1470975736)

This app allows users to view class schedules, sign up for fitness classes, and access location information for a unique fitness center, coworking space, and retail shop. Optimize your time and convenience by managing your class bookings directly from your device.

**Highlights:** View class schedules, Sign up for classes, Access location information, Group exercise planning, Functional training class management

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tabata Pro HIIT Interval Timer free?

Tabata Pro HIIT Interval Timer is free to download, with in-app purchases available.

### Is Chatham Works free?

Chatham Works is free to download, with no in-app purchases.

### Which has better reviews, Tabata Pro HIIT Interval Timer or Chatham Works?

Chatham Works is rated higher. Tabata Pro HIIT Interval Timer averages 4.9 out of 5 from 18K ratings, while Chatham Works averages 5.0 from 1 ratings.

### Do Tabata Pro HIIT Interval Timer or Chatham Works have ads?

Neither Tabata Pro HIIT Interval Timer nor Chatham Works shows ads.

### Which is updated more often, Tabata Pro HIIT Interval Timer or Chatham Works?

Tabata Pro HIIT Interval Timer ships an update fortnightly, and Chatham Works monthly. Most recently, Tabata Pro HIIT Interval Timer was updated on November 2, 2026 and Chatham Works on October 7, 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.*