# BrainOpen vs 悄悄话

The clearest difference is in-app purchases: 悄悄话 at none against BrainOpen's 1. BrainOpen's advantage is iOS requirement (13.0 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. BrainOpen sells 1 in-app purchase, starting at $3.99 per month. 悄悄话 asks for nothing beyond the download.

## The numbers

| Metric | BrainOpen | 悄悄话 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 18 months | — |
| Size | 113 MB | 1 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [鞯 赵](https://appshunter.io/developer/1567856103) | [政达 吴](https://appshunter.io/developer/1847513673) |

## What reviewers say

### BrainOpen

[App page](https://appshunter.io/ios/app/brainopen/id1624322578)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly Card-Unlimited Chat | $3.99 | per month |


### 悄悄话

[App page](https://appshunter.io/ios/app/secretchat/id6754283277)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BrainOpen free?

BrainOpen is free to download, with in-app purchases available.

### Is 悄悄话 free?

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

### Do BrainOpen or 悄悄话 have ads?

Neither BrainOpen nor 悄悄话 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.*