# 上下求索 vs KEWU

The clearest difference is in-app purchases: KEWU at none against 上下求索's 5. KEWU also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (15.5 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 上下求索 sells 5 in-app purchases, starting at $3.99 per month. KEWU asks for nothing beyond the download.

上下求索 ships an update every 2 months, KEWU every 4 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 上下求索 | KEWU |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 21 MB | 239 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [亿有引力](https://appshunter.io/developer/1787379474) | [杭州摩西科技发展有限公司](https://appshunter.io/developer/1604575167) |

## What reviewers say

### 上下求索

[App page](https://appshunter.io/ios/app/ai/id6741800737)

This intelligent assistant supports voice, text, and image input for Q&A and inspiration. Explore bite-sized knowledge, generate unique photos with the Time Gallery, and engage in follow-up questions for deeper understanding.

**Highlights:** Voice, text, and image input, Follow-up questions, Extended reading content, Bite-sized Knowledge module, Time Gallery photo generation, Task list and result page

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Creation Monthly | $3.99 | per month |
| 50 张图片加量包 | $0.99 | one-time |
| 50 Coins | $0.99 | one-time |
| 170 Coins | $3.99 | one-time |
| 420 Coins | $9.99 | one-time |


### KEWU

[App page](https://appshunter.io/ios/app/kewu/id6758200562)

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

**In-app purchases:** none


## Frequently asked questions

### Is 上下求索 free?

上下求索 is free to download, with in-app purchases available.

### Is KEWU free?

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

### Do 上下求索 or KEWU have ads?

Neither 上下求索 nor KEWU shows ads.

### Which is updated more often, 上下求索 or KEWU?

上下求索 ships an update every 2 months, and KEWU every 4 days. Most recently, 上下求索 was updated on November 4, 2026 and KEWU on November 5, 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.*