# Arca.so vs BehavAI

The clearest difference is in-app purchases: Arca.so at none against BehavAI's 1. Arca.so also leads on update cadence (every 10 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BehavAI sells 1 in-app purchase, starting at $9.99 per month. Arca.so asks for nothing beyond the download.

Arca.so ships an update every 10 days, BehavAI monthly. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Arca.so | BehavAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (12 ratings)](https://appshunter.io/ios/app/arcaso/id6477714383/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free | — |
| Size | 64 MB | 54 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [somefrogs Oy](https://appshunter.io/developer/1636377367) | [1000712111 Ontario Inc](https://appshunter.io/developer/1840882614) |

## What reviewers say

### Arca.so

[App page](https://appshunter.io/ios/app/arcaso/id6477714383)

Browse and organize online content to discover inspiring and empowering information. Connect with others, gain new perspectives, and find unique voices. Make the internet a personalized space for your interests.

**Highlights:** Browse and curate internet content, Discover inspiring and empowering information, Connect with other users' perspectives, Gain new insights and find unheard voices, Personalize your internet experience

**In-app purchases:** none


### BehavAI

[App page](https://appshunter.io/ios/app/behavai-decode-behavior/id6775372944)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BehavAI Pro | $9.99 | per month |


## Frequently asked questions

### Is Arca.so free?

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

### Is BehavAI free?

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

### Do Arca.so or BehavAI have ads?

Neither Arca.so nor BehavAI shows ads.

### Which is updated more often, Arca.so or BehavAI?

Arca.so ships an update every 10 days, and BehavAI monthly. Most recently, Arca.so was updated on September 30, 2026 and BehavAI on October 1, 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.*