# Readius vs 贝德

The clearest difference is update cadence: 贝德 at every 3 weeks against Readius's every 2 months. 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.

Readius ships an update every 2 months, 贝德 every 3 weeks. The most recent releases landed on September 28, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Readius | 贝德 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 418 MB | 109 MB |
| Requires iOS | **14** | 15 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shantou Institute of Ultrasonic Inst. Co., Ltd.](https://appshunter.io/developer/406261738) | [GUANDDONG TIANPU TECHNOLOGY GROUP CO.,LTD.](https://appshunter.io/developer/1637560013) |

## What reviewers say

### Readius

[App page](https://appshunter.io/ios/app/readius/id6443592437)

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

**In-app purchases:** none


### 贝德

[App page](https://appshunter.io/ios/app/id6443931740)

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

**In-app purchases:** none


## Frequently asked questions

### Is Readius free?

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

### Is 贝德 free?

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

### Do Readius or 贝德 have ads?

Neither Readius nor 贝德 shows ads.

### Which is updated more often, Readius or 贝德?

Readius ships an update every 2 months, and 贝德 every 3 weeks. Most recently, Readius was updated on September 28, 2026 and 贝德 on October 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.*