# Bubble Maths vs Echo

The clearest difference is price: Echo at Free against Bubble Maths's $0.99. Echo also leads on rating (5.0 vs 4.4) and update cadence (every 2 weeks vs every 16 months). Bubble Maths's advantage is ratings volume (67 vs 1) and iOS requirement (12.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Echo is free to download; Bubble Maths costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Echo holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Bubble Maths has 67 ratings behind it against 1, so its average is the more settled of the two.

Bubble Maths ships an update every 16 months, Echo every 2 weeks. The most recent releases landed on August 25, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Bubble Maths | Echo |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.4 (67 ratings)](https://appshunter.io/ios/app/bubble-maths/id588198567/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/echo-auditory-scanning/id6451412975/reviews)** |
| Number of ratings | **67** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 9 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dizzy Squirrel Limited](https://appshunter.io/developer/587374273) | [Ace Centre](https://appshunter.io/developer/1304772616) |

## What reviewers say

### Bubble Maths

[App page](https://appshunter.io/ios/app/bubble-maths/id588198567)

Practice essential math skills with this engaging app. It offers progressively challenging levels, from basic arithmetic to multiplication and division, with a star-based reward system for correct answers. Unlock new stages by mastering previous ones, making it suitable for both children and adults.

**Highlights:** Arithmetic practice, Multiplication and division, Progressive levels, Star-based rewards, Timed challenges, Suitable for children 5+

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

**In-app purchases:** none


### Echo

[App page](https://appshunter.io/ios/app/echo-auditory-scanning/id6451412975)

This communication aid uses auditory scanning for individuals with visual and physical impairments. It offers sound cues and distinct voices for navigation and expression, accessible via switches, gestures, or arrow keys.

**Highlights:** Auditory scanning communication method, Sound cues for navigation, Separate voices for cues and speech, External switch access, Swipe gesture control, Arrow key navigation

**Features:** macOS Compatibility, Game Controller support

**In-app purchases:** none


## Frequently asked questions

### Is Bubble Maths free?

Bubble Maths costs $0.99, with no in-app purchases.

### Is Echo free?

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

### Which has better reviews, Bubble Maths or Echo?

Echo is rated higher. Bubble Maths averages 4.4 out of 5 from 67 ratings, while Echo averages 5.0 from 1 ratings.

### Do Bubble Maths or Echo have ads?

Neither Bubble Maths nor Echo shows ads.

### Which is updated more often, Bubble Maths or Echo?

Bubble Maths ships an update every 16 months, and Echo every 2 weeks. Most recently, Bubble Maths was updated on August 25, 2026 and Echo on June 1, 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.*