# Interval Timer vs Core Timer

The clearest difference is in-app purchases: Core Timer at none against Interval Timer's 3. Core Timer also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (18.6 vs 26.0). Interval Timer's advantage is device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Interval Timer sells 3 in-app purchases, starting at $4.99 per month. Core Timer asks for nothing beyond the download.

Interval Timer ships an update every 3 weeks, Core Timer every 5 days. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Interval Timer | Core Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (25 ratings)](https://appshunter.io/ios/app/interval-timer-timewave/id1524345488/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 49 MB | 11 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammed Sahil Arayakandy](https://appshunter.io/developer/1524345491) | [James Mowat](https://appshunter.io/developer/1839159413) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-timewave/id1524345488)

This versatile timer app allows users to create custom sequences for various activities, from breathwork and workouts to focus sessions and cooking. It offers AI-powered voice guidance, iCloud synchronization across Apple devices, and a minimalist black-and-white interface.

**Highlights:** Customizable timer chains, Breathwork flow builder, Intermittent fasting timers, Workout routine creator, Focus and Pomodoro timers, AI voice guidance, iCloud sync across devices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $24.99 | per year |
| Lifetime Premium | $49.99 | one-time |


### Core Timer

[App page](https://appshunter.io/ios/app/core-timer/id6752376369)

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is Core Timer free?

Core Timer is free to download, with no in-app purchases.

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

Neither Interval Timer nor Core Timer shows ads.

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

Interval Timer ships an update every 3 weeks, and Core Timer every 5 days. Most recently, Interval Timer was updated on September 22, 2026 and Core Timer on September 17, 2026.

---

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