Goocus vs js
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Goocus
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.
- Smartphone-optimized design
- Achievement visualization graphs
- User-friendly interface
- Focus on making learning fun
- Adopted by businesses and institutions
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Note: You will need to create a Goocus account before using this app. Overview: Goocus is Japan’s one-and-only learning app “specialized on Smartphones,” which has been adopted by a number of business enterprises and educational institutions. Features: A design that pursues user-friendliness on smartphones Graphs visualizing the achievements In nature, gaining a new knowledge is a fun thing to do. With Goocus, bring back the fun of “learning” that you have left behind somewhere.
js
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Explanation: STAR is a nickname for statistical analysis program developed for personal computers.(STatistical Analysis Rescuers). Main functions · Fisher's exact test 1 x 2 · Fisher's exact test 1 x 2 (P1 not equal P2) · Fisher's exact test 2 x 2 · Chi-square Test 1 x J · Chi-square Test i x J · Add Grade1 x 2 ■Method of use (1) Start the "js-STAR" app. (2) Tap the [ frequency test ] button (3) Enter a number where two or four square cells are displayed. (4) Tap the [ Calculate!" ] Button. (5) Result is output to the TextField. ■Disclaimer (1) This may not run correctly depending on the iOS version or model. (2) The creator shall not bear any responsibility for any damage caused to the user when downloading the app.
Screenshots
Verdict
Goocus and js are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Goocus ships an update every 6 weeks, js every 2 months. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.
| Parameter | Goocus | js |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 30.8% of reviews | — |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 17+ | 9+ |
| Developer | Castalia Co. Limited. | Hiroyuki Nakano |
In-app purchases
Goocus
No in-app purchases
js
No in-app purchases









