# Halo vs Cat's Study

The clearest difference is in-app purchases: Halo at none against Cat's Study's 6. Halo also leads on ads (none vs shown) and update cadence (daily vs every 4 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Cat's Study sells 6 in-app purchases, starting at $2.49 per month. Halo asks for nothing beyond the download.

Halo ships an update daily, Cat's Study every 4 days. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Halo | Cat's Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 4 days |
| Size | 39 MB | 162 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [youssef fakih](https://appshunter.io/developer/6784882063) | [Lo-Fi Labs Inc.](https://appshunter.io/developer/6796905768) |

## What reviewers say

### Halo

[App page](https://appshunter.io/ios/app/halo-pomodoro-focus-timer/id6790023411)

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

**In-app purchases:** none


### Cat's Study

[App page](https://appshunter.io/ios/app/cats-study-focus-timer/id6816829300)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cat's Study Pro Monthly | $2.49 | per month |
| Cat's Study Pro Annual | $14.49 | per year |
| 100 Coins | $1.49 | one-time |
| 500 Coins | $6.49 | one-time |
| 1,000 Coins | $9.99 | one-time |
| Cat's Study Pro Lifetime | $33.49 | one-time |


## Frequently asked questions

### Is Halo free?

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

### Is Cat's Study free?

Cat's Study is free to download, with in-app purchases available.

### Do Halo or Cat's Study have ads?

Cat's Study shows ads; Halo does not.

### Which is updated more often, Halo or Cat's Study?

Halo ships an update daily, and Cat's Study every 4 days. Most recently, Halo was updated on October 16, 2026 and Cat's Study on October 24, 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.*