# Polly自然拼读 vs 初中数学运算闯关

The clearest difference is price: Polly自然拼读 at Free against 初中数学运算闯关's $0.99. Polly自然拼读 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On ads and in-app purchases there is nothing between them.

Polly自然拼读 is free to download; 初中数学运算闯关 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Polly自然拼读 | 初中数学运算闯关 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 203 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LITTLE MOON PTE. LTD.](https://appshunter.io/developer/1780291442) | [宝珍 杜](https://appshunter.io/developer/1825073574) |

## What reviewers say

### Polly自然拼读

[App page](https://appshunter.io/ios/app/polly/id6740805479)

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

**In-app purchases:** none


### 初中数学运算闯关

[App page](https://appshunter.io/ios/app/id6789064066)

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

**In-app purchases:** none


## Frequently asked questions

### Is Polly自然拼读 free?

Polly自然拼读 is free to download, with no in-app purchases.

### Is 初中数学运算闯关 free?

初中数学运算闯关 costs $0.99, with no in-app purchases.

### Do Polly自然拼读 or 初中数学运算闯关 have ads?

Neither Polly自然拼读 nor 初中数学运算闯关 shows ads.

---

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