# Plazma vs AmblyoPlay

The clearest difference is review sentiment: AmblyoPlay at 88% against Plazma's 25%. AmblyoPlay also leads on update cadence (every 5 weeks vs every 5 months) and ratings volume (21 vs 4). Plazma's advantage is rating (5.0 vs 4.0) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Plazma holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: AmblyoPlay has 21 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 25% of Plazma's written reviews are positive against 88% of AmblyoPlay's, so the app with the better star average is not the one people write more warmly about.

Plazma ships an update every 5 months, AmblyoPlay every 5 weeks. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Plazma | AmblyoPlay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/plazma/id944180792/reviews)** | [4.0 (21 ratings)](https://appshunter.io/ios/app/amblyoplay/id1211714324/reviews) |
| Number of ratings | 4 | **21** |
| Positive reviews | 25.0% of reviews | **88.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 46 MB | 426 MB |
| Requires iOS | **11.4** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sensory App House Ltd](https://appshunter.io/developer/1361994084) | [Hundred Vision d.o.o.](https://appshunter.io/developer/1053891265) |

## What reviewers say

### Plazma

[App page](https://appshunter.io/ios/app/plazma/id944180792)

This visually stimulating app offers a simple, interactive experience designed for individuals with special or complex needs, including autism. It provides a range of effects that can be changed by tapping buttons or using assistive technology switches.

**Highlights:** Visually stimulating effects, Switch accessible control, Interactive button taps, Suitable for all ages, No ads or in-app purchases

**Features:** Vision Pro support

**In-app purchases:** none


### AmblyoPlay

[App page](https://appshunter.io/ios/app/amblyoplay/id1211714324)

This app provides vision therapy through engaging games designed to stimulate the weaker eye and improve cooperation between both eyes. It's scientifically proven to be most effective for ages 4-14, offering a personalized program that adapts to the user's progress.

**Highlights:** Game-based vision therapy, Stimulates weaker eye, Improves eye cooperation, Personalized therapy programs, Progress tracking, Daily 30-minute sessions

**In-app purchases:** none


## Frequently asked questions

### Is Plazma free?

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

### Is AmblyoPlay free?

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

### Which has better reviews, Plazma or AmblyoPlay?

Plazma is rated higher. Plazma averages 5.0 out of 5 from 4 ratings, while AmblyoPlay averages 4.0 from 21 ratings.

### Do Plazma or AmblyoPlay have ads?

Neither Plazma nor AmblyoPlay shows ads.

### Which is updated more often, Plazma or AmblyoPlay?

Plazma ships an update every 5 months, and AmblyoPlay every 5 weeks. Most recently, Plazma was updated on October 14, 2026 and AmblyoPlay on October 24, 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.*