# CRT参数选择 vs Vision Planet

CRT参数选择 and Vision Planet are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | CRT参数选择 | Vision Planet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/vision-planet/id6444305815/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Free |
| Size | 76 MB | 1.1 GB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [德超 王](https://appshunter.io/developer/1611735879) | [波克医疗科技(上海)有限公司](https://appshunter.io/developer/1643457727) |

## What reviewers say

### CRT参数选择

[App page](https://appshunter.io/ios/app/crt/id1403633270)

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

**In-app purchases:** none


### Vision Planet

[App page](https://appshunter.io/ios/app/vision-planet/id6444305815)

This gamified AI medical software uses a Roguelike bullet-screen shooting format for visual training. It's designed for children under 12 with amblyopia and binocular vision dysfunction, integrating internet game technology with professional ophthalmology methods.

**Highlights:** Gamified AI visual training, Roguelike bullet-screen shooting gameplay, Amblyopia rehabilitation, Binocular vision dysfunction training, Developed by game and ophthalmology teams, Class II medical device certified

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CRT参数选择 free?

CRT参数选择 is free to download, with no in-app purchases.

### Is Vision Planet free?

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

### Do CRT参数选择 or Vision Planet have ads?

Neither CRT参数选择 nor Vision Planet shows ads.

### Which is updated more often, CRT参数选择 or Vision Planet?

CRT参数选择 ships an update every 2 months, and Vision Planet every 2 months. Most recently, CRT参数选择 was updated on October 15, 2026 and Vision Planet on October 12, 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.*