# SmileScan （スマイルスキャン） vs NeuroPass

The clearest difference is update cadence: NeuroPass at every 3 days against SmileScan （スマイルスキャン）'s every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

SmileScan （スマイルスキャン） ships an update every 3 weeks, NeuroPass every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SmileScan （スマイルスキャン） | NeuroPass |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 104 MB | 34 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Doctorbook](https://appshunter.io/developer/1504193261) | [le-ders inc](https://appshunter.io/developer/1862067431) |

## What reviewers say

### SmileScan （スマイルスキャン）

[App page](https://appshunter.io/ios/app/smilescan/id6740604473)

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

**In-app purchases:** none


### NeuroPass

[App page](https://appshunter.io/ios/app/neuropass/id6772902112)

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

**In-app purchases:** none


## Frequently asked questions

### Is SmileScan （スマイルスキャン） free?

SmileScan （スマイルスキャン） is free to download, with no in-app purchases.

### Is NeuroPass free?

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

### Do SmileScan （スマイルスキャン） or NeuroPass have ads?

Neither SmileScan （スマイルスキャン） nor NeuroPass shows ads.

### Which is updated more often, SmileScan （スマイルスキャン） or NeuroPass?

SmileScan （スマイルスキャン） ships an update every 3 weeks, and NeuroPass every 3 days. Most recently, SmileScan （スマイルスキャン） was updated on October 24, 2026 and NeuroPass on October 25, 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.*