# Goocus vs S

The clearest difference is in-app purchases: Goocus at none against S's 3. Goocus also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.1). S's advantage is update cadence (every 2 weeks vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. S sells 3 in-app purchases, starting at $1.99 per month. Goocus asks for nothing beyond the download.

Goocus ships an update every 6 weeks, S every 2 weeks. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Goocus | S |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 30.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 107 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Castalia Co. Limited.](https://appshunter.io/developer/335332725) | [Sang Ngo](https://appshunter.io/developer/1859892801) |

## What reviewers say

### Goocus

[App page](https://appshunter.io/ios/app/goocus-mobilelearningplatform/id983877417)

This mobile learning application is designed for smartphones, offering a user-friendly interface to make acquiring new knowledge enjoyable. It visualizes user achievements with graphs, aiming to reintroduce the fun of learning for individuals and organizations.

**Highlights:** Smartphone-optimized design, Achievement visualization graphs, User-friendly interface, Focus on making learning fun, Adopted by businesses and institutions

**Features:** macOS Compatibility

**In-app purchases:** none


### S

[App page](https://appshunter.io/ios/app/s-tu-vung-lien-tuong/id6756291005)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hàng tháng | $1.99 | per month |
| Hàng năm | $9.99 | per year |
| Trọn đời | $14.99 | one-time |


## Frequently asked questions

### Is Goocus free?

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

### Is S free?

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

### Do Goocus or S have ads?

S shows ads; Goocus does not.

### Which is updated more often, Goocus or S?

Goocus ships an update every 6 weeks, and S every 2 weeks. Most recently, Goocus was updated on November 1, 2026 and S 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.*