# 云海螺在线1对1 vs Polly小班‑英文素养拓展

The clearest difference is in-app purchases: 云海螺在线1对1 at none against Polly小班‑英文素养拓展's 1. 云海螺在线1对1 also leads on update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Polly小班‑英文素养拓展 sells 1 one-off in-app purchase. 云海螺在线1对1 asks for nothing beyond the download.

云海螺在线1对1 ships an update every 4 days, Polly小班‑英文素养拓展 every 3 weeks. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 云海螺在线1对1 | Polly小班‑英文素养拓展 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/11/id6463595255/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 160 MB | 127 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [南京云起信息科技有限公司](https://appshunter.io/developer/1411880387) | [LITTLE MOON PTE. LTD.](https://appshunter.io/developer/1780291442) |

## What reviewers say

### 云海螺在线1对1

[App page](https://appshunter.io/ios/app/11/id6463595255)

This app offers a solid, useful, and top-tier online education product designed for the future. It focuses on providing high-quality learning experiences.

**Highlights:** Future-oriented education, Solid learning content, Useful educational tools, First-class learning experience, Hardcore educational products

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

**In-app purchases:** none


### Polly小班‑英文素养拓展

[App page](https://appshunter.io/ios/app/polly/id6746146596)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 波利优学单次课 | $14.99 | one-time |


## Frequently asked questions

### Is 云海螺在线1对1 free?

云海螺在线1对1 is free to download, with no in-app purchases.

### Is Polly小班‑英文素养拓展 free?

Polly小班‑英文素养拓展 is free to download, with in-app purchases available.

### Do 云海螺在线1对1 or Polly小班‑英文素养拓展 have ads?

Neither 云海螺在线1对1 nor Polly小班‑英文素养拓展 shows ads.

### Which is updated more often, 云海螺在线1对1 or Polly小班‑英文素养拓展?

云海螺在线1对1 ships an update every 4 days, and Polly小班‑英文素养拓展 every 3 weeks. Most recently, 云海螺在线1对1 was updated on September 16, 2026 and Polly小班‑英文素养拓展 on September 9, 2026.

---

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