# 大学搜题酱 vs 回声解构

The clearest difference is rating: 回声解构 at 5.0 against 大学搜题酱's 3.1. 回声解构 also leads on review sentiment (100% vs 58%) and in-app purchases (none vs 10). 大学搜题酱's advantage is ratings volume (114 vs 5). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 大学搜题酱 sells 6 in-app purchases, starting at $2.99 per month. 回声解构 asks for nothing beyond the download.

回声解构 holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: 大学搜题酱 has 114 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 58% of 大学搜题酱's written reviews are positive against 100% of 回声解构's.

大学搜题酱 ships an update every 11 days, 回声解构 weekly. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 大学搜题酱 | 回声解构 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (114 ratings)](https://appshunter.io/ios/app/id1519166316/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/id6775099071/reviews)** |
| Number of ratings | **114** | 5 |
| Positive reviews | 57.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 105 MB | 196 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Polar Future Culture Technology Co., Ltd](https://appshunter.io/developer/1681701989) | [Hangzhou Echo Deconstruction Technology Co., Ltd.](https://appshunter.io/developer/6775099073) |

## What reviewers say

### 大学搜题酱

[App page](https://appshunter.io/ios/app/id1519166316)

This app offers quick and accurate solutions to academic and professional exam questions through photo or text search. It features a vast question bank, detailed explanations, and a convenient floating window for on-the-go assistance. Users can also save important questions for later review.

**Highlights:** AI-powered question solving, Photo and text search, Vast question bank, Detailed answer explanations, Floating window for quick access, Save important questions

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 大学VIP连续包月 | $2.99 | per month |
| 大学VIP连续包月 | $2.99 | per month |
| 大学PC插件会员月卡 | $2.99 | one-time |
| 大学VIP月卡 | $3.99 | one-time |
| 大学VIP年卡 | $9.99 | one-time |
| 大学VIP年卡 | $14.99 | one-time |

**What reviewers like**

- 📚 Comprehensive题库
- 🆓 Free to use
- 💡 Detailed explanations
- 🚀 Fast search speed
- 👍 User-friendly interface

**What reviewers complain about**

- 😠 Excessive ads
- 💥 Frequent pop-up ads
- 📱 Aggressive ad behavior (shake, accidental clicks)
- ❓ Inconsistent answer accuracy
- ❓ Incorrect answers for some questions

**Reported bugs**

- Floating window instability
- Page zoom issues
- Garbled text
- Incorrect answer accuracy
- Answers inconsistent with official sources

**Requested features**

- Improve floating window stability and compatibility
- Expand the question bank
- Add video explanations for problems
- Allow answer downloads
- Improve page zoom functionality


### 回声解构

[App page](https://appshunter.io/ios/app/id6775099071)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 大学搜题酱 free?

大学搜题酱 is free to download, with in-app purchases available.

### Is 回声解构 free?

回声解构 is free to download, with no in-app purchases.

### Which has better reviews, 大学搜题酱 or 回声解构?

回声解构 is rated higher. 大学搜题酱 averages 3.1 out of 5 from 114 ratings, while 回声解构 averages 5.0 from 5 ratings.

### Do 大学搜题酱 or 回声解构 have ads?

大学搜题酱 shows ads; 回声解构 does not.

### Which is updated more often, 大学搜题酱 or 回声解构?

大学搜题酱 ships an update every 11 days, and 回声解构 weekly. Most recently, 大学搜题酱 was updated on November 13, 2026 and 回声解构 on November 5, 2026.

---

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