# 签字宝 vs Sign Documents

The clearest difference is rating: 签字宝 at 5.0 against Sign Documents's 4.5. 签字宝 also leads on update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (13.0 vs 15.0). Sign Documents's advantage is ratings volume (68 vs 1) and review sentiment (88% vs 67%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 签字宝 sells 3 in-app purchases, starting at $4.99 per month and Sign Documents sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

签字宝 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Sign Documents has 68 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 67% of 签字宝's written reviews are positive against 88% of Sign Documents's, so the app with the better star average is not the one people write more warmly about.

签字宝 ships an update every 3 weeks, Sign Documents every 6 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | 签字宝 | Sign Documents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6450930035/reviews)** | [4.5 (68 ratings)](https://appshunter.io/ios/app/sign-documents-sign-and-edit-pdf/id6475158813/reviews) |
| Number of ratings | 1 | **68** |
| Positive reviews | 66.7% of reviews | **87.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 9 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [金凤 王](https://appshunter.io/developer/1670776957) | [晓峰 刘](https://appshunter.io/developer/1605337002) |

## What reviewers say

### 签字宝

[App page](https://appshunter.io/ios/app/id6450930035)

Effortlessly create and apply digital signatures to documents. Supports realistic handwritten signatures, electronic seals, and secure document management. Share signed files easily across multiple platforms.

**Highlights:** Digital signature creation, Realistic handwritten signatures, Electronic seal application, Secure document management, One-click file sharing, Multi-platform integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 高级会员（月度） | $4.99 | per month |
| 高级会员（年度） | $19.99 | per year |
| 永久会员 | $29.99 | one-time |


### Sign Documents

[App page](https://appshunter.io/ios/app/sign-documents-sign-and-edit-pdf/id6475158813)

Easily add signatures, text, and images to your PDF documents. This user-friendly tool offers real-time saving and an intuitive interface for quick document personalization. Ideal for students and professionals needing efficient PDF editing.

**Highlights:** Add signatures, Insert text, Add images, Real-time saving, Intuitive interface, Personalize documents

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Editor PRO | $8.99 | per month |
| Forever Pro | $14.99 | one-time |


## Frequently asked questions

### Is 签字宝 free?

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

### Is Sign Documents free?

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

### Which has better reviews, 签字宝 or Sign Documents?

签字宝 is rated higher. 签字宝 averages 5.0 out of 5 from 1 ratings, while Sign Documents averages 4.5 from 68 ratings.

### Do 签字宝 or Sign Documents have ads?

Neither 签字宝 nor Sign Documents shows ads.

### Which is updated more often, 签字宝 or Sign Documents?

签字宝 ships an update every 3 weeks, and Sign Documents every 6 weeks. Most recently, 签字宝 was updated on October 30, 2026 and Sign Documents on October 30, 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.*