Bubble Maths vs Echo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bubble Maths
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.
- Arithmetic practice
- Multiplication and division
- Progressive levels
- Star-based rewards
- Timed challenges
- Suitable for children 5+
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This app will test your maths skills, starting with simple sums through to more complex multiplication and division. There are 25 questions per level. For every correct answer you get a star, with the aim to get all 25 correct. Complete one level to unlock further levels until you have completed them all. This app is great for children and adults alike but all of the questions are based around Key Stage 1 and 2 style questions so great for children 5+ years. Why not really test your brain power by activating the timer mode and answer questions against the clock - same aim just more pressure! Are you a maths expert and can you get all of the stars?
Echo
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.
- Auditory scanning communication method
- Sound cues for navigation
- Separate voices for cues and speech
- External switch access
- Swipe gesture control
- Arrow key navigation
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Echo is an AAC app designed for those with a visual difficulty and physical difficulty to access communication. Echo is based around the concept of auditory scanning. Auditory scanning is a communication method using sound cues or auditory feedback rather than visual cues. This method is especially valuable for those with a visual impairment who cant access visual based AAC. Echo provides you with two different voices, one for your auditory cues and the another to represent your voice. You can access Echo using the following methods. - Any external switch (or combination of switches) - Swipe Gestures - Arrow Keys We have plans to extend this in the future to allow for more access methods.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Bubble Maths | Echo |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.4 (67 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 67 — better | 1 |
| Update frequency | Every 16 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Dizzy Squirrel Limited | Ace Centre |
Customer experience
Bubble Maths
Echo
In-app purchases
Bubble Maths
No in-app purchases
Echo
No in-app purchases
