# Butterfly Massage vs Ntros

The clearest difference is iOS requirement: Butterfly Massage at 12.0 against Ntros's 16.4. 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.

## The numbers

| Metric | Butterfly Massage | Ntros |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 33 MB | 47 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Guangzhou Pinzhi Medical Technology Co., LTD](https://appshunter.io/developer/1809116046) | [Ntros, Inc.](https://appshunter.io/developer/6792879501) |

## What reviewers say

### Butterfly Massage

[App page](https://appshunter.io/ios/app/butterfly-massage/id6745803782)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ntros

[App page](https://appshunter.io/ios/app/ntros/id6753602956)

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

**In-app purchases:** none


## Frequently asked questions

### Is Butterfly Massage free?

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

### Is Ntros free?

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

### Do Butterfly Massage or Ntros have ads?

Neither Butterfly Massage nor Ntros shows ads.

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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.*