# Castella vs Focus

The clearest difference is in-app purchases: Castella at none against Focus's 2. Castella also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Focus's advantage is update cadence (every 2 days vs weekly). On price and ads there is nothing between them.

Both are free to download. Focus sells 2 in-app purchases, starting at $5.99 per 7 days. Castella asks for nothing beyond the download.

Castella ships an update weekly, Focus every 2 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Castella | Focus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/focus-app-blocker-and-lockdown/id6806876559/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 10 MB | 25 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Serdar Percin](https://appshunter.io/developer/1143186597) | [Mustafa Anıl Kaya](https://appshunter.io/developer/1871947461) |

## What reviewers say

### Castella

[App page](https://appshunter.io/ios/app/castella/id6749802163)

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

**In-app purchases:** none


### Focus

[App page](https://appshunter.io/ios/app/focus-app-blocker-and-lockdown/id6806876559)

This app helps you stay focused by blocking distracting applications for set periods. It uses your own words as reminders and offers features like scheduled focus windows and detailed screen time insights. An emergency pass allows brief access to a blocked app once per session.

**Highlights:** Strict app blocking sessions, Scheduled focus windows, Live Lock Screen countdown, One emergency pass per session, Screen time insights, Standalone timer and alarms

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Pro Weekly | $5.99 | per 7 days |
| Focus Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is Castella free?

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

### Is Focus free?

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

### Do Castella or Focus have ads?

Neither Castella nor Focus shows ads.

### Which is updated more often, Castella or Focus?

Castella ships an update weekly, and Focus every 2 days. Most recently, Castella was updated on October 27, 2026 and Focus 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.*