# Urban Sandbox vs G3MS

The clearest difference is rating: Urban Sandbox at 5.0 against G3MS's 4.5. G3MS's advantage is ratings volume (8 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Urban Sandbox sells 8 in-app purchases, starting at $5.99 per year and G3MS sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Urban Sandbox holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 8 respectively.

Urban Sandbox ships an update every 6 weeks, G3MS every 2 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Urban Sandbox | G3MS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/urban-sandbox/id1534853533/reviews)** | [4.5 (8 ratings)](https://appshunter.io/ios/app/g3ms/id1625313492/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 121 MB | 44 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [RND Holdings, LLC](https://appshunter.io/developer/1534853535) | [Get Gems App Corporation](https://appshunter.io/developer/1625313494) |

## What reviewers say

### Urban Sandbox

[App page](https://appshunter.io/ios/app/urban-sandbox/id1534853533)

This platform offers expert guidance for parents on common challenges and empowers students to explore their interests and build confidence. It provides resources developed with professionals to foster stronger family connections and student growth.

**Highlights:** Expert-developed parenting guidance, Videos and practical strategies for parents, Support from Family Support Fellows, Student clubs and projects, Safe community for students, Resources on various child development topics

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Urban Sandbox | $5.99 | per year |
| Learning Book | $0.99 | one-time |
| Starter Pack | $4.99 | one-time |
| Mini Pack | $9.99 | one-time |
| Mega Pack | $19.99 | one-time |
| Super Saver Pack | $49.99 | one-time |
| Luxury Pack | $84.99 | one-time |
| Premium Pack | $124.99 | one-time |


### G3MS

[App page](https://appshunter.io/ios/app/g3ms/id1625313492)

This app motivates K-12 students to learn by offering daily challenges and AI-powered tutoring. Users can earn real rewards, like gift cards, by building learning streaks and mastering academic skills. Parents and teachers can monitor student progress through a dedicated dashboard.

**Highlights:** Daily learning challenges, AI-powered learning guide, Flashcards and practice questions, Streak-based reward system, Student progress tracking, Parent and teacher dashboard

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $7.99 | per month |
| Yearly Plan | $76.90 | per year |


## Frequently asked questions

### Is Urban Sandbox free?

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

### Is G3MS free?

G3MS is free to download, with in-app purchases available.

### Which has better reviews, Urban Sandbox or G3MS?

Urban Sandbox is rated higher. Urban Sandbox averages 5.0 out of 5 from 2 ratings, while G3MS averages 4.5 from 8 ratings.

### Do Urban Sandbox or G3MS have ads?

Neither Urban Sandbox nor G3MS shows ads.

### Which is updated more often, Urban Sandbox or G3MS?

Urban Sandbox ships an update every 6 weeks, and G3MS every 2 months. Most recently, Urban Sandbox was updated on November 7, 2026 and G3MS on November 7, 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.*