# why数理 vs Neurovista

The clearest difference is iOS requirement: why数理 at 11.0 against Neurovista's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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 fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | why数理 | Neurovista |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 71 MB | 341 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [靖一 陈](https://appshunter.io/developer/1529972276) | [Zhejiang FlectoThink Technology Co., Ltd](https://appshunter.io/developer/1647728102) |

## What reviewers say

### why数理

[App page](https://appshunter.io/ios/app/why/id1539375758)

**Features:** macOS Compatibility

**In-app purchases:** none


### Neurovista

[App page](https://appshunter.io/ios/app/neurovista/id6443616810)

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

**In-app purchases:** none


## Frequently asked questions

### Is why数理 free?

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

### Is Neurovista free?

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

### Do why数理 or Neurovista have ads?

Neither why数理 nor Neurovista shows ads.

### Which is updated more often, why数理 or Neurovista?

why数理 ships an update fortnightly, and Neurovista fortnightly. Most recently, why数理 was updated on November 3, 2026 and Neurovista on November 3, 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.*