# AcWing vs CmEcho

The clearest difference is in-app purchases: CmEcho at none against AcWing's 10. CmEcho also leads on update cadence (every 3 days vs weekly). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. AcWing sells 10 one-off in-app purchases. CmEcho asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for AcWing against 5.0 for CmEcho. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

AcWing ships an update weekly, CmEcho every 3 days. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | AcWing | CmEcho |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/acwing/id6450363226/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/cmecho/id6756966210/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 57 MB | 64 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [北京睿新奇知科技有限公司](https://appshunter.io/developer/1692921725) | [Lechang Luke Cheng](https://appshunter.io/developer/1813409332) |

## What reviewers say

### AcWing

[App page](https://appshunter.io/ios/app/acwing/id6450363226)

This app connects students with daily updates and shared experiences. Discover campus life, academic insights, and connect with peers through real-time messaging and trending topics.

**Highlights:** Daily life updates ('Shuo Shuo'), Real-time trending topics and search, Direct messaging for peer communication, Cross-platform synchronization (mobile/web), Content sharing for study and life

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10币 | $0.99 | one-time |
| 6币 | $0.99 | one-time |
| 18币 | $2.99 | one-time |
| 249币 | $34.99 | one-time |
| 349币 | $49.99 | one-time |
| 449币 | $59.99 | one-time |
| 549币 | $79.99 | one-time |
| 608币 | $89.99 | one-time |
| 799币 | $99.99 | one-time |
| 1000币 | $149.99 | one-time |


### CmEcho

[App page](https://appshunter.io/ios/app/cmecho/id6756966210)

This app offers secure video conferencing and instant messaging with a focus on privacy. It supports one-on-one and group calls, file sharing, and encrypted communication for personal and professional use.

**Highlights:** One-on-one HD video calls, Group video conferencing, Private and group chats, Text, image, and voice messaging, File sharing, Encrypted communication

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AcWing free?

AcWing is free to download, with in-app purchases available.

### Is CmEcho free?

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

### Which has better reviews, AcWing or CmEcho?

AcWing and CmEcho are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do AcWing or CmEcho have ads?

Neither AcWing nor CmEcho shows ads.

### Which is updated more often, AcWing or CmEcho?

AcWing ships an update weekly, and CmEcho every 3 days. Most recently, AcWing was updated on October 10, 2026 and CmEcho on October 2, 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.*