# Second Eye vs Arcus

The clearest difference is update cadence: Arcus at every 2 days against Second Eye's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Second Eye sells 2 in-app purchases, starting at $3.99 per month and Arcus sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Second Eye ships an update fortnightly, Arcus every 2 days. Both last shipped on October 13, 2026.

## The numbers

| Metric | Second Eye | Arcus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 51 MB | 76 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 12+ |
| Developer | [PRAGMATIC TECH INNOVATIONS LTD](https://appshunter.io/developer/1575147856) | [Rishab Aggarwal](https://appshunter.io/developer/6781765722) |

## What reviewers say

### Second Eye

[App page](https://appshunter.io/ios/app/second-eye/id6760843474)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Expand Pack | $1.99 | one-time |


### Arcus

[App page](https://appshunter.io/ios/app/arcus-ai-chatbot-and-agent/id6810542982)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arcus Unlimited Monthly | $12.99 | per month |
| Arcus Unlimited Annual | $79.99 | per year |
| Arcus Unlimited Annual | $79.99 | per year |


## Frequently asked questions

### Is Second Eye free?

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

### Is Arcus free?

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

### Do Second Eye or Arcus have ads?

Neither Second Eye nor Arcus shows ads.

### Which is updated more often, Second Eye or Arcus?

Second Eye ships an update fortnightly, and Arcus every 2 days. Most recently, Second Eye was updated on October 13, 2026 and Arcus on October 13, 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.*