# 默写宝 vs PDF AI Reader

The clearest difference is price: 默写宝 at Free against PDF AI Reader's $0.99. 默写宝 also leads on iOS requirement (15.6 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

默写宝 is free to download; PDF AI Reader costs $0.99 up front. 默写宝 sells 4 in-app purchases, starting at $2.99 per month and PDF AI Reader sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on November 9, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 默写宝 | PDF AI Reader |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-ai-reader/id6760606355/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Size | 84 MB | 836 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [经 唐](https://appshunter.io/developer/1854607153) | [勋才 王](https://appshunter.io/developer/1492122934) |

## What reviewers say

### 默写宝

[App page](https://appshunter.io/ios/app/id6759078190)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 会员1个月 | $2.99 | per month |
| 会员3个月 | $5.99 | per 3 months |
| 会员12个月 | $19.99 | per year |
| 默写宝 | $24.99 | one-time |


### PDF AI Reader

[App page](https://appshunter.io/ios/app/pdf-ai-reader/id6760606355)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP | $1.99 | per 7 days |
| Monthly VIP | $5.99 | per month |
| Yearly VIP | $59.99 | per year |


## Frequently asked questions

### Is 默写宝 free?

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

### Is PDF AI Reader free?

PDF AI Reader costs $0.99, and also offers in-app purchases.

### Do 默写宝 or PDF AI Reader have ads?

Neither 默写宝 nor PDF AI Reader shows ads.

### Which is updated more often, 默写宝 or PDF AI Reader?

默写宝 ships an update every 5 days, and PDF AI Reader every 5 days. Most recently, 默写宝 was updated on November 9, 2026 and PDF AI Reader on November 7, 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.*