# CastleBird vs FirstCode.AI

The clearest difference is update cadence: FirstCode.AI at weekly against CastleBird's every 3 months. On price, ads, 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.

CastleBird ships an update every 3 months, FirstCode.AI weekly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CastleBird | FirstCode.AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 93 MB | 44 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CastleBird](https://appshunter.io/developer/1689612442) | [First Code Solutions LLC](https://appshunter.io/developer/1895745084) |

## What reviewers say

### CastleBird

[App page](https://appshunter.io/ios/app/castlebird/id6449547159)

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

**In-app purchases:** none


### FirstCode.AI

[App page](https://appshunter.io/ios/app/firstcodeai/id6784289185)

**In-app purchases:** none


## Frequently asked questions

### Is CastleBird free?

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

### Is FirstCode.AI free?

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

### Do CastleBird or FirstCode.AI have ads?

Neither CastleBird nor FirstCode.AI shows ads.

### Which is updated more often, CastleBird or FirstCode.AI?

CastleBird ships an update every 3 months, and FirstCode.AI weekly. Most recently, CastleBird was updated on October 1, 2026 and FirstCode.AI on October 8, 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.*