# Closed Eyes Detector vs Sentence Embedding

The clearest difference is price: Sentence Embedding at Free against Closed Eyes Detector's $0.99. Closed Eyes Detector's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.8.3). On update cadence, in-app purchases and device support there is nothing between them.

Sentence Embedding is free to download; Closed Eyes Detector costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Closed Eyes Detector ships an update every 9 days, Sentence Embedding fortnightly. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Closed Eyes Detector | Sentence Embedding |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 36 MB | 36 MB |
| Requires iOS | **13.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pietro Garosi](https://appshunter.io/developer/1670501256) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Closed Eyes Detector

[App page](https://appshunter.io/ios/app/closed-eyes-detector/id1671443609)

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

**In-app purchases:** none


### Sentence Embedding

[App page](https://appshunter.io/ios/app/sentence-embedding/id6673885843)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Closed Eyes Detector free?

Closed Eyes Detector costs $0.99, with no in-app purchases.

### Is Sentence Embedding free?

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

### Do Closed Eyes Detector or Sentence Embedding have ads?

Sentence Embedding shows ads; Closed Eyes Detector does not.

### Which is updated more often, Closed Eyes Detector or Sentence Embedding?

Closed Eyes Detector ships an update every 9 days, and Sentence Embedding fortnightly. Most recently, Closed Eyes Detector was updated on October 7, 2026 and Sentence Embedding on October 25, 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.*