# CastleBird vs ALSR Intelligence

The clearest difference is in-app purchases: CastleBird at none against ALSR Intelligence's 6. CastleBird also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). ALSR Intelligence's advantage is update cadence (every 3 days vs every 3 months). On price and ads there is nothing between them.

Both are free to download. ALSR Intelligence sells 6 in-app purchases, starting at $29.99 per month. CastleBird asks for nothing beyond the download.

CastleBird ships an update every 3 months, ALSR Intelligence every 3 days. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CastleBird | ALSR Intelligence |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 93 MB | 62 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [CastleBird](https://appshunter.io/developer/1689612442) | [Andrey Mazhara](https://appshunter.io/developer/6797986321) |

## What reviewers say

### CastleBird

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

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

**In-app purchases:** none


### ALSR Intelligence

[App page](https://appshunter.io/ios/app/alsr-intelligence/id6797986319)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $29.99 | per month |
| Growth | $79.99 | per month |
| Pro | $199.99 | per month |
| Starter Annual | $299.99 | per year |
| Growth Annual | $799.99 | per year |
| Pro 6 Months | $999.99 | per 6 months |


## Frequently asked questions

### Is CastleBird free?

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

### Is ALSR Intelligence free?

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

### Do CastleBird or ALSR Intelligence have ads?

Neither CastleBird nor ALSR Intelligence shows ads.

### Which is updated more often, CastleBird or ALSR Intelligence?

CastleBird ships an update every 3 months, and ALSR Intelligence every 3 days. Most recently, CastleBird was updated on October 1, 2026 and ALSR Intelligence on October 2, 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.*