# 回音 vs SlideUp

The clearest difference is in-app purchases: SlideUp at none against 回音's 10. SlideUp also leads on ads (none vs shown) and rating (4.9 vs 4.6). 回音's advantage is iOS requirement (13.0 vs 15.6). On price, ratings volume and device support there is nothing between them.

Both are free to download. 回音 sells 10 in-app purchases, starting at $3.99 per month. SlideUp asks for nothing beyond the download.

SlideUp holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 94 and 260 respectively. Written reviews point the same way: 88% of 回音's written reviews are positive against 100% of SlideUp's.

回音 ships an update every 3 weeks, SlideUp weekly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 回音 | SlideUp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (94 ratings)](https://appshunter.io/ios/app/id6443981412/reviews) | **[4.9 (260 ratings)](https://appshunter.io/ios/app/slideup/id6475598042/reviews)** |
| Number of ratings | 94 | **260** |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 360 MB | 123 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Hangzhou Small Circle Technology Co., Ltd.](https://appshunter.io/developer/1450142828) | [SlideUp Social Corporation](https://appshunter.io/developer/1724420118) |

## What reviewers say

### 回音

[App page](https://appshunter.io/ios/app/id6443981412)

This app offers a safe space for users to anonymously share thoughts and feelings without judgment. It connects individuals through personality matching, fostering genuine connections based on shared interests and soul rather than superficial attributes.

**Highlights:** Anonymous sharing of thoughts, Personality-based matching, Stress-free social interaction, Record life moments privately, Connect with like-minded individuals, Receive instant responses to shared thoughts

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $3.99 | per month |
| 会员首月试用 | $3.99 | per month |
| 尊享版通行证 | $3.99 | one-time |
| 1个月会员 | $3.99 | one-time |
| 240萤火（送15萤火） | $3.99 | one-time |
| 545萤火（送50萤火） | $9.99 | one-time |
| 1年会员-新用户特惠 | $17.99 | one-time |
| 1025萤火（送100萤火） | $19.99 | one-time |
| 1年会员-限时折扣 | $19.99 | one-time |
| 4145萤火（送600萤火） | $69.99 | one-time |

**What reviewers like**

- 👍 Good for venting and sharing secrets
- 🔒 Strong privacy protection
- 😊 Users find it healing and comforting
- 💬 Plenty of users to chat with
- 👍 Clean and tidy interface

**What reviewers complain about**

- ⚠️ Frequent advertisements
- ⚠️ App redirects to other apps (e.g., Taobao)
- ⚠️ Some users find the content immature or childish
- ⚠️ Limited features and repetitive gameplay
- ⚠️ Issues with VIP features not working as advertised

**Reported bugs**

- No sound/notification for Apple messages
- App crashes on iPhone 14 Pro
- Avatar setting issues on iPhone 14 Pro
- App redirects to Taobao on cold start

**Requested features**

- Increase message/secret receiving count
- Add more interactive social gameplay
- Make interactive content more interesting
- Add more features beyond sending and receiving secrets
- Develop mini-games for multiplayer


### SlideUp

[App page](https://appshunter.io/ios/app/slideup/id6475598042)

A private, anonymous social platform exclusively for verified university students to share life, seek advice, and connect with peers globally. Discover campus trends, trade items, and find activity partners in a secure, anonymous community.

**Highlights:** School-exclusive anonymous social platform, Connect with new friends globally, Share advice on courses and campus life, Buy/sell items and find help, Anonymous matching for dining and activities, Discover campus conversations, Safe and anonymous community

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

**In-app purchases:** none

**What reviewers like**

- 👍 Useful outlet for students
- 👍 Relatable and honest content
- 👍 Engaging and entertaining
- 👍 Sense of community
- 👍 Anonymity allows for openness

**What reviewers complain about**

- 🐛 Private message display issues
- 🤔 Lack of user diversity (mostly Chinese students)
- 🤔 Potential for abuse or inappropriate content

**Reported bugs**

- Private messages sometimes displayed twice
- Occasional app slowness or crashes

**Requested features**

- Expand user base to more international students
- Add translation functionality
- Improve private messaging experience
- Implement better content moderation


## Frequently asked questions

### Is 回音 free?

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

### Is SlideUp free?

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

### Which has better reviews, 回音 or SlideUp?

SlideUp is rated higher. 回音 averages 4.6 out of 5 from 94 ratings, while SlideUp averages 4.9 from 260 ratings.

### Do 回音 or SlideUp have ads?

回音 shows ads; SlideUp does not.

### Which is updated more often, 回音 or SlideUp?

回音 ships an update every 3 weeks, and SlideUp weekly. Most recently, 回音 was updated on November 3, 2026 and SlideUp on November 4, 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.*