# Ello vs Marble

The clearest difference is review sentiment: Ello at 88% against Marble's 57%. Ello also leads on chart position (#94 vs unranked) and iOS requirement (15.0 vs 26.0). Marble's advantage is monetization model (free vs freemium). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Ello ships an update every 2 days, Marble every 3 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Ello | Marble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (245 ratings)](https://appshunter.io/ios/app/ello-reading-and-math-tutor/id6739630070/reviews)** | — |
| Number of ratings | **245** | — |
| Positive reviews | **87.9% of reviews** | 57.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Freemium | **Free** |
| Best chart rank | **#94** | — |
| Size | 208 MB | 849 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ello Technology, Inc.](https://appshunter.io/developer/1467293710) | [Generative Spark Inc](https://appshunter.io/developer/1866853008) |

## What reviewers say

### Ello

[App page](https://appshunter.io/ios/app/ello-reading-and-math-tutor/id6739630070)

**Currently charting:** #94 Top Free · Education (US App Store)

An AI-powered tutor designed for children aged 5-9 to improve reading and math skills. It actively listens and provides real-time feedback as children read aloud and solve math problems. Features include personalized learning paths and interactive story creation.

**Highlights:** AI-powered reading and math tutoring, Real-time audio feedback, Personalized learning levels, Interactive story creation, Parent dashboard, Support for up to 4 children

**In-app purchases:** none


### 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 Ello free?

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

### Is Marble free?

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

### Do Ello or Marble have ads?

Neither Ello nor Marble shows ads.

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

Ello ships an update every 2 days, and Marble every 3 days. Most recently, Ello was updated on November 8, 2026 and Marble on November 10, 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.*