# JustMove AI vs Interval Timer

The clearest difference is in-app purchases: JustMove AI at none against Interval Timer's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Interval Timer sells 1 one-off in-app purchase. JustMove AI asks for nothing beyond the download.

JustMove AI ships an update every 5 days, Interval Timer every 9 days. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | JustMove AI | Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 9 days |
| Size | 318 MB | 69 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [Naoya Enokida](https://appshunter.io/developer/583844490) | [Katsunobu Sunagawa](https://appshunter.io/developer/6795139232) |

## What reviewers say

### JustMove AI

[App page](https://appshunter.io/ios/app/justmove-ai/id6748267150)

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

**In-app purchases:** none


### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-focus-and-hiit/id6795139230)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Timer Pro | $1.99 | one-time |


## Frequently asked questions

### Is JustMove AI free?

JustMove AI is free to download, with no in-app purchases.

### Is Interval Timer free?

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

### Do JustMove AI or Interval Timer have ads?

Both JustMove AI and Interval Timer show ads.

### Which is updated more often, JustMove AI or Interval Timer?

JustMove AI ships an update every 5 days, and Interval Timer every 9 days. Most recently, JustMove AI was updated on October 20, 2026 and Interval Timer on October 4, 2026.

---

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