# Eye blink detection vs Hermi

The clearest difference is in-app purchases: Eye blink detection at none against Hermi's 2. Eye blink detection also leads on update cadence (every 2 weeks vs every 4 months). Hermi's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.7.2). On price and device support there is nothing between them.

Both are free to download. Hermi sells 2 in-app purchases, starting at $1.99 per 7 days. Eye blink detection asks for nothing beyond the download.

Eye blink detection ships an update every 2 weeks, Hermi every 4 months. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Eye blink detection | Hermi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/eye-blink-detection/id6502569148/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Ad-supported | — |
| Size | 35 MB | 74 MB |
| Requires iOS | 17.7.2 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Shreyas Taware](https://appshunter.io/developer/1881531559) |

## What reviewers say

### Eye blink detection

[App page](https://appshunter.io/ios/app/eye-blink-detection/id6502569148)

This utility app monitors and displays your blinking activity in real-time. It shows your current blink status and counts the total number of blinks detected on the screen.

**Highlights:** Real-time blink detection, Displays blink status, Counts blinks, On-screen display

**Features:** macOS Compatibility

**In-app purchases:** none


### Hermi

[App page](https://appshunter.io/ios/app/hermi-thinking-journal/id6759902909)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $1.99 | per 7 days |
| Yearly Access | $29.99 | per year |


## Frequently asked questions

### Is Eye blink detection free?

Eye blink detection is free to download, with no in-app purchases.

### Is Hermi free?

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

### Do Eye blink detection or Hermi have ads?

Eye blink detection shows ads; Hermi does not.

### Which is updated more often, Eye blink detection or Hermi?

Eye blink detection ships an update every 2 weeks, and Hermi every 4 months. Most recently, Eye blink detection was updated on October 11, 2026 and Hermi on October 24, 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.*