# Second Eye vs Senko

The clearest difference is in-app purchases: Senko at none against Second Eye's 2. Second Eye's advantage is iOS requirement (16.4 vs 27.0). On price, update cadence, ads 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. Senko asks for nothing beyond the download.

Second Eye ships an update fortnightly, Senko every 8 days. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Second Eye | Senko |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Size | 51 MB | 153 MB |
| Requires iOS | **16.4** | 27.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 9+ | 17+ |
| Developer | [PRAGMATIC TECH INNOVATIONS LTD](https://appshunter.io/developer/1575147856) | [ReceiptIn](https://appshunter.io/developer/488566601) |

## 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 |


### Senko

[App page](https://appshunter.io/ios/app/senko-ai-computer/id6813225163)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Second Eye free?

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

### Is Senko free?

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

### Do Second Eye or Senko have ads?

Neither Second Eye nor Senko shows ads.

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

Second Eye ships an update fortnightly, and Senko every 8 days. Most recently, Second Eye was updated on October 13, 2026 and Senko on October 19, 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.*