# Test For Eye vs Caffeine Tracker

The clearest difference is in-app purchases: Test For Eye at none against Caffeine Tracker's 1. Test For Eye also leads on iOS requirement (12.0 vs 26.1). Caffeine Tracker's advantage is update cadence (every 9 days vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. Caffeine Tracker sells 1 one-off in-app purchase. Test For Eye asks for nothing beyond the download.

Test For Eye ships an update every 9 months, Caffeine Tracker every 9 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Test For Eye | Caffeine Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 months | **Every 9 days** |
| Size | 27 MB | 25 MB |
| Requires iOS | **12.0** | 26.1 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [gangadhar goud](https://appshunter.io/developer/898647800) | [KeiK LLC](https://appshunter.io/developer/1854674572) |

## What reviewers say

### Test For Eye

[App page](https://appshunter.io/ios/app/test-for-eye/id6448846247)

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

**In-app purchases:** none


### Caffeine Tracker

[App page](https://appshunter.io/ios/app/caffeine-tracker-coffee-log/id6760610207)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Test For Eye free?

Test For Eye is free to download, with no in-app purchases.

### Is Caffeine Tracker free?

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

### Do Test For Eye or Caffeine Tracker have ads?

Both Test For Eye and Caffeine Tracker show ads.

### Which is updated more often, Test For Eye or Caffeine Tracker?

Test For Eye ships an update every 9 months, and Caffeine Tracker every 9 days. Most recently, Test For Eye was updated on October 10, 2026 and Caffeine Tracker on October 8, 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.*