# PaperDeep vs 降AI

PaperDeep and 降AI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. PaperDeep sells 10 one-off in-app purchases and 降AI sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PaperDeep | 降AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 36 MB | 13 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wuxi Biancheng Network Technology Co., Ltd.](https://appshunter.io/developer/1654646700) | [锡 吴](https://appshunter.io/developer/1525657422) |

## What reviewers say

### PaperDeep

[App page](https://appshunter.io/ios/app/paperdeep/id6758391561)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 基础会员-1天 | $0.99 | one-time |
| 38元积分充值 | $4.99 | one-time |
| 58元权益套餐 | $7.99 | one-time |
| 68元积分充值 | $9.99 | one-time |
| 1个月一次性会员权益 | $12.99 | one-time |
| 128元积分充值 | $19.99 | one-time |
| 168元权益套餐 | $24.99 | one-time |
| 228元的权益套餐 | $29.99 | one-time |
| 3个月一次性会员权益 | $29.99 | one-time |
| 12个月一次性会员权益 | $99.99 | one-time |


### 降AI

[App page](https://appshunter.io/ios/app/ai-aigc/id6793514241)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 月会员 | $9.99 | per month |
| 年会员 | $39.99 | per year |


## Frequently asked questions

### Is PaperDeep free?

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

### Is 降AI free?

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

### Do PaperDeep or 降AI have ads?

Neither PaperDeep nor 降AI shows ads.

### Which is updated more often, PaperDeep or 降AI?

PaperDeep ships an update every 3 weeks, and 降AI every 3 weeks. Most recently, PaperDeep was updated on September 21, 2026 and 降AI on September 10, 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.*