# Eyelid vs Bynocs

The clearest difference is price: Bynocs at Free against Eyelid's $6.99. Bynocs also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Bynocs is free to download; Eyelid costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Eyelid ships an update every 6 months, Bynocs every 3 weeks. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Eyelid | Bynocs |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/eyelid/id964690025/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 4 MB | 52 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Medic Engineering K.K.](https://appshunter.io/developer/917118875) | [Kanohi Eye Private Limited](https://appshunter.io/developer/1626403778) |

## What reviewers say

### Eyelid

[App page](https://appshunter.io/ios/app/eyelid/id964690025)

This app analyzes photographs to calculate the opened eye ratio based on eyebrow and eyelid positions. It allows users to mark key points on the eye and save results as JPEG files.

**Highlights:** Calculates opened eye ratio, Measures eyebrow and eyelid positions, Uses primary gaze photographs, Allows manual marking of eye features, Saves results as JPEG, Includes a camera with a spirit level

**In-app purchases:** none


### Bynocs

[App page](https://appshunter.io/ios/app/bynocs/id1645833974)

**In-app purchases:** none


## Frequently asked questions

### Is Eyelid free?

Eyelid costs $6.99, with no in-app purchases.

### Is Bynocs free?

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

### Do Eyelid or Bynocs have ads?

Neither Eyelid nor Bynocs shows ads.

### Which is updated more often, Eyelid or Bynocs?

Eyelid ships an update every 6 months, and Bynocs every 3 weeks. Most recently, Eyelid was updated on October 24, 2026 and Bynocs 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.*