# Interval Timer Free vs Chameul In

The clearest difference is ads: Chameul In at none against Interval Timer Free's shown. Chameul In also leads on iOS requirement (13.0 vs 18.5). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Interval Timer Free ships an update every 6 weeks, Chameul In every 3 weeks. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Interval Timer Free | Chameul In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/interval-timer-free-workout/id6749876500/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 7 MB | 38 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HUJIN SHIN](https://appshunter.io/developer/1516817833) | [Seongmin Yim](https://appshunter.io/developer/1529542974) |

## What reviewers say

### Interval Timer Free

[App page](https://appshunter.io/ios/app/interval-timer-free-workout/id6749876500)

This versatile timer app helps you achieve fitness and personal goals. Easily create custom timers for various workouts and activities, with options for multiple saved routines and visual customization.

**Highlights:** Customizable interval timers, Save multiple workout routines, Dark mode and themes, Supports HIIT, Tabata, yoga, and more, Optimized for study, work, and meditation

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

**In-app purchases:** none


### Chameul In

[App page](https://appshunter.io/ios/app/chameul-in/id6778135833)

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

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer Free free?

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

### Is Chameul In free?

Chameul In is free to download, with no in-app purchases.

### Do Interval Timer Free or Chameul In have ads?

Interval Timer Free shows ads; Chameul In does not.

### Which is updated more often, Interval Timer Free or Chameul In?

Interval Timer Free ships an update every 6 weeks, and Chameul In every 3 weeks. Most recently, Interval Timer Free was updated on October 21, 2026 and Chameul In on October 7, 2026.

---

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