# Opaaa! vs DouDouBear

The clearest difference is update cadence: Opaaa! at every 3 days against DouDouBear's every 8 days. DouDouBear's advantage is iOS requirement (13.0 vs 15.1). 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.

Opaaa! ships an update every 3 days, DouDouBear every 8 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Opaaa! | DouDouBear |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/doudoubear/id6762106052/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 8 days |
| Monetization | — | Free |
| Size | 40 MB | 54 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Igor Tasic](https://appshunter.io/developer/1795359761) | [DOUDOUBEAR K.K](https://appshunter.io/developer/1892938111) |

## What reviewers say

### Opaaa!

[App page](https://appshunter.io/ios/app/opaaa/id6741744352)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### DouDouBear

[App page](https://appshunter.io/ios/app/doudoubear/id6762106052)

Rent electric-assisted bicycles conveniently by scanning a QR code with your smartphone. Access a smart self-rental service for easy urban mobility.

**Highlights:** Electric-assisted bicycle rental, QR code scanning for rental, Smart self-rental service, Convenient urban mobility

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

**In-app purchases:** none


## Frequently asked questions

### Is Opaaa! free?

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

### Is DouDouBear free?

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

### Do Opaaa! or DouDouBear have ads?

Neither Opaaa! nor DouDouBear shows ads.

### Which is updated more often, Opaaa! or DouDouBear?

Opaaa! ships an update every 3 days, and DouDouBear every 8 days. Most recently, Opaaa! was updated on October 25, 2026 and DouDouBear on October 24, 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.*