# Vimi vs Marble

The clearest difference is rating: Vimi at 4.5 against Marble's 3.1. Vimi also leads on ratings volume (1K vs 8) and chart position (#96 vs unranked). Marble's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price, monetization model and device support there is nothing between them.

Both are free to download. Vimi sells 11 in-app purchases, starting at $19.99 per month. Marble asks for nothing beyond the download.

Vimi holds the better App Store score, 4.5 against 3.1. That said, the two scores are not equally well evidenced: Vimi has 1K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 58% of Vimi's written reviews are positive against 50% of Marble's.

Vimi ships an update every 9 days, Marble every 3 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Vimi | Marble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1K ratings)](https://appshunter.io/ios/app/vimi-my-math-tutor/id6748574236/reviews)** | [3.1 (8 ratings)](https://appshunter.io/ios/app/marble-stay-curious/id6773408198/reviews) |
| Number of ratings | **1K** | 8 |
| Positive reviews | **58.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Free | Free |
| Best chart rank | **#96** | — |
| Size | 123 MB | 797 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VIMI ADAPTIVE LEARNING LTD](https://appshunter.io/developer/1826373818) | [Generative Spark Inc](https://appshunter.io/developer/1866853008) |

## What reviewers say

### Vimi

[App page](https://appshunter.io/ios/app/vimi-my-math-tutor/id6748574236)

**Currently charting:** #96 Top Free · Education (US App Store)

This AI-powered math tutor creates personalized learning paths to help users master math concepts. It offers adaptive lessons, clear explanations, and engaging exercises tailored to school curricula, making learning approachable and fun.

**Highlights:** Personalized learning paths, Adaptive lessons, Curriculum-aligned content, Clear explanations, Engaging exercises, Instant feedback and solutions, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vimi Monthly Premium | $19.99 | per month |
| Vimi Monthly Premium | $19.99 | per month |
| summer_promotion | $19.99 | per month |
| Vimi Monthly Premium | $19.99 | per month |
| Vimi monthly Premium | $19.99 | per month |
| Vimi Monthly Premium | $24.99 | per month |
| Vimi Quarterly Premium | $44.99 | per 3 months |
| Vimi 3 months subscription | $44.99 | per 3 months |
| Vimi Annual Premium | $94.90 | per year |
| Vimi Premium Annual | $154.99 | per year |
| Vimi Annual Premium | $154.99 | per year |


### Marble

[App page](https://appshunter.io/ios/app/marble-stay-curious/id6773408198)

An interactive world designed to spark children's curiosity into learning through exploration, quests, and problem-solving. It adapts to their interests and learning levels, offering engaging challenges and real-world activity ideas.

**Highlights:** Interactive learning worlds, Adaptive quests and challenges, Parental progress reports, Real-world activity suggestions, COPPA compliant, Designed for ages 6-12

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vimi free?

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

### Is Marble free?

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

### Which has better reviews, Vimi or Marble?

Vimi is rated higher. Vimi averages 4.5 out of 5 from 1K ratings, while Marble averages 3.1 from 8 ratings.

### Do Vimi or Marble have ads?

Vimi shows ads; Marble does not.

### Which is updated more often, Vimi or Marble?

Vimi ships an update every 9 days, and Marble every 3 days. Most recently, Vimi was updated on October 30, 2026 and Marble on October 28, 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.*