# Glaucoma Timer vs Eyethena

The clearest difference is ads: Eyethena at none against Glaucoma Timer's shown. Glaucoma Timer's advantage is iOS requirement (12.4 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Glaucoma Timer ships an update monthly, Eyethena every 6 weeks. The most recent releases landed on December 20, 2025 and September 15, 2026 respectively.

## The numbers

| Metric | Glaucoma Timer | Eyethena |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 14 MB | 30 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Seungju Yang](https://appshunter.io/developer/351993267) | [Eyethena](https://appshunter.io/developer/1711046243) |

## What reviewers say

### Glaucoma Timer

[App page](https://appshunter.io/ios/app/glaucoma-timer/id1641205557)

**Features:** macOS Compatibility

**In-app purchases:** none


### Eyethena

[App page](https://appshunter.io/ios/app/eyethena/id6468957805)

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

**In-app purchases:** none


## Frequently asked questions

### Is Glaucoma Timer free?

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

### Is Eyethena free?

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

### Do Glaucoma Timer or Eyethena have ads?

Glaucoma Timer shows ads; Eyethena does not.

### Which is updated more often, Glaucoma Timer or Eyethena?

Glaucoma Timer ships an update monthly, and Eyethena every 6 weeks. Most recently, Glaucoma Timer was updated on December 20, 2025 and Eyethena on September 15, 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.*