# 呀呀说 vs 零维宇宙

The clearest difference is in-app purchases: 呀呀说 at none against 零维宇宙's 1. On price and iOS requirement there is nothing between them.

Both are free to download. 零维宇宙 sells 1 in-app purchase, starting at $3.99 per month. 呀呀说 asks for nothing beyond the download.

## The numbers

| Metric | 呀呀说 | 零维宇宙 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai/id6449163418/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 73 MB |
| Requires iOS | **12.0** | 13.0 |
| Age rating | 4+ | 4+ |
| Developer | [汉光 杨](https://appshunter.io/developer/1611145104) | [ShangHai ArgonStar Tech Co., Ltd.](https://appshunter.io/developer/1700799358) |

## What reviewers say

### 呀呀说

[App page](https://appshunter.io/ios/app/ai/id6449163418)

This AI-powered English learning tool helps improve communication skills. It offers grammar correction, IELTS speaking practice, and real-time translation. Designed for various scenarios, it provides a personalized and efficient learning experience.

**Highlights:** AI grammar correction, IELTS speaking simulation, Real-time translation, Multi-scenario application, Personalized learning experience, Simple and intuitive interface

**In-app purchases:** none


### 零维宇宙

[App page](https://appshunter.io/ios/app/ai/id6457204291)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $3.99 | per month |


## Frequently asked questions

### Is 呀呀说 free?

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

### Is 零维宇宙 free?

零维宇宙 is free to download, with in-app purchases available.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*