# Keydo App vs Ello 2.0

The clearest difference is rating: Ello 2.0 at 4.6 against Keydo App's 4.0. Ello 2.0 also leads on in-app purchases (none vs 3) and update cadence (daily vs every 4 months). Keydo App's advantage is review sentiment (100% vs 80%). On price, ads and device support there is nothing between them.

Both are free to download. Keydo App sells 3 in-app purchases, starting at $2.99 per 7 days. Ello 2.0 asks for nothing beyond the download.

Ello 2.0 holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Ello 2.0 has 20 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of Keydo App's written reviews are positive against 80% of Ello 2.0's, so the app with the better star average is not the one people write more warmly about.

Keydo App ships an update every 4 months, Ello 2.0 daily. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Keydo App | Ello 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/keydo-app/id6702021236/reviews) | **[4.6 (20 ratings)](https://appshunter.io/ios/app/ello-20-learn-reading-and-math/id6739630070/reviews)** |
| Number of ratings | 4 | **20** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#131** |
| Size | 521 MB | 193 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Keydo, Inc.](https://appshunter.io/developer/1876949902) | [Ello Technology, Inc.](https://appshunter.io/developer/1467293710) |

## What reviewers say

### Keydo App

[App page](https://appshunter.io/ios/app/keydo-app/id6702021236)

This app locks children's devices until they complete educational challenges set by parents. It helps foster responsibility and problem-solving skills by making learning a prerequisite for screen time.

**Highlights:** Age-appropriate educational challenges, Parental control over device access, Customizable learning questions, Progress tracking for children, Screen time rewards for learning, Develops responsibility and problem-solving

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly Subscription | $110.99 | per year |


### Ello 2.0

[App page](https://appshunter.io/ios/app/ello-20-learn-reading-and-math/id6739630070)

**Currently charting:** #131 Top Free · Education (US App Store)

This educational app uses AI to personalize reading and math lessons for children aged 4-9. It listens to children read aloud, identifies mistakes, and adapts content in real-time. Features include daily quests, a large book library, and early math exercises.

**Highlights:** AI reading tutor listens and corrects in real-time, Adaptive learning adjusts to child's level, 1,200+ decodable books based on Science of Reading, Daily personalized reading and math quests, Early math skills development, Supports pre-readers and up to Grade 5

**In-app purchases:** none


## Frequently asked questions

### Is Keydo App free?

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

### Is Ello 2.0 free?

Ello 2.0 is free to download, with no in-app purchases.

### Which has better reviews, Keydo App or Ello 2.0?

Ello 2.0 is rated higher. Keydo App averages 4.0 out of 5 from 4 ratings, while Ello 2.0 averages 4.6 from 20 ratings.

### Do Keydo App or Ello 2.0 have ads?

Neither Keydo App nor Ello 2.0 shows ads.

### Which is updated more often, Keydo App or Ello 2.0?

Keydo App ships an update every 4 months, and Ello 2.0 daily. Most recently, Keydo App was updated on October 5, 2026 and Ello 2.0 on October 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.*