# Interval Timer vs Core Health Tracker

The clearest difference is ads: Core Health Tracker at none against Interval Timer's shown. Core Health Tracker also leads on update cadence (every 4 days vs every 9 days). Interval Timer's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. Interval Timer sells 6 in-app purchases, starting at $0.99 per month and Core Health Tracker sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer ships an update every 9 days, Core Health Tracker every 4 days. The most recent releases landed on October 27, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Interval Timer | Core Health Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (19K ratings)](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568/reviews)** | — |
| Number of ratings | **19K** | — |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 143 MB | 22 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [NEO PIXEL LABS PTE. LTD.](https://appshunter.io/developer/1788472183) | [thomas Lee](https://appshunter.io/developer/6773125011) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568)

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

**Highlights:** Customizable sets, intervals, and rest times, Runs in background and with screen locked, Music playlist integration, Save settings as templates, Apple Health integration for heart rate, Post workouts to social media

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - 1 Month | $0.99 | per month |
| Premium - 1 Month | $1.99 | per month |
| Plus - 1 Month | $1.99 | per month |
| Premium - 1 Month | $2.99 | per month |
| Plus - 1 Year | $4.99 | per year |
| Premium - 1 Year | $9.99 | per year |

**What reviewers like**

- 🚀 Free version works well
- 👍 Customizable intervals and timers
- 👍 Flexible for different workouts
- 👍 Easy to use and set up
- 👍 Provides visual and audio cues

**What reviewers complain about**

- 🐛 Timer issues (stops, loses time)
- 🔋 Drains battery when used
- 💰 Expensive subscription model
- 📢 Intrusive ads
- 🔒 Incompatible with other apps

**Reported bugs**

- Ads block functionality
- App freezes or crashes
- Timer doesn't work in background

**Requested features**

- Add notes to workouts
- Provide workout history and analytics
- Allow syncing with Apple Health
- Improve Apple Watch integration
- Add more customization options


### Core Health Tracker

[App page](https://appshunter.io/ios/app/core-health-tracker/id6773125009)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Core Premium | $6.99 | per month |
| Core Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Core Health Tracker free?

Core Health Tracker is free to download, with in-app purchases available.

### Do Interval Timer or Core Health Tracker have ads?

Interval Timer shows ads; Core Health Tracker does not.

### Which is updated more often, Interval Timer or Core Health Tracker?

Interval Timer ships an update every 9 days, and Core Health Tracker every 4 days. Most recently, Interval Timer was updated on October 27, 2026 and Core Health Tracker on October 13, 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.*