# Pupil Detection vs Gokubi

The clearest difference is ads: Gokubi at none against Pupil Detection's shown. Gokubi also leads on update cadence (every 3 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Pupil Detection ships an update every 2 weeks, Gokubi every 3 days. The most recent releases landed on August 3, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Pupil Detection | Gokubi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/gokubi/id6739772879/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 36 MB | 3 MB |
| Requires iOS | **17.7.2** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Alzea Arafat](https://appshunter.io/developer/1756862897) |

## What reviewers say

### Pupil Detection

[App page](https://appshunter.io/ios/app/pupil-detection/id6739671823)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gokubi

[App page](https://appshunter.io/ios/app/gokubi/id6739772879)

This app acts as a personal gaming journal to help you track your progress in games. It offers a fast, easy, and fully offline experience for logging your gaming achievements. It is a free utility designed to enhance your overall gaming journey.

**Highlights:** Gaming progress tracking, Personal gaming journal, Easy to use interface, Fast performance, Fully offline functionality, Free to use

**In-app purchases:** none


## Frequently asked questions

### Is Pupil Detection free?

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

### Is Gokubi free?

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

### Do Pupil Detection or Gokubi have ads?

Pupil Detection shows ads; Gokubi does not.

### Which is updated more often, Pupil Detection or Gokubi?

Pupil Detection ships an update every 2 weeks, and Gokubi every 3 days. Most recently, Pupil Detection was updated on August 3, 2026 and Gokubi on June 11, 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.*