# 法大大 vs 查农证

The clearest difference is in-app purchases: 查农证 at none against 法大大's 5. 查农证 also leads on update cadence (fortnightly vs every 6 weeks). 法大大's advantage is iOS requirement (9.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. 法大大 sells 5 one-off in-app purchases. 查农证 asks for nothing beyond the download.

法大大 ships an update every 6 weeks, 查农证 fortnightly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 法大大 | 查农证 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/id1103204022/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 22.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 27 MB | 3 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [深圳法大大网络科技有限公司](https://appshunter.io/developer/1095255111) | [经 唐](https://appshunter.io/developer/1854607153) |

## What reviewers say

### 法大大

[App page](https://appshunter.io/ios/app/id1103204022)

This app offers a secure and compliant platform for signing electronic contracts online. It simplifies the traditional signing process, saving time and ensuring legal validity through features like real-name authentication and blockchain evidence preservation. It supports various industries for efficient contract management.

**Highlights:** Online electronic contract signing, Contract drafting, Free contract management, Real-name authentication, Blockchain evidence preservation, Legal validity assurance, Electronic seal issuance

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1份个人签署套餐 | $0.99 | one-time |
| 5份个人签署套餐 | $5.99 | one-time |
| 公证处《签署文件存证证明》 | $6.99 | one-time |
| 50份个人签署套餐 | $59.99 | one-time |
| 100份个人签署套餐 | $99.99 | one-time |


### 查农证

[App page](https://appshunter.io/ios/app/id6778256149)

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

**In-app purchases:** none


## Frequently asked questions

### Is 法大大 free?

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

### Is 查农证 free?

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

### Do 法大大 or 查农证 have ads?

Neither 法大大 nor 查农证 shows ads.

### Which is updated more often, 法大大 or 查农证?

法大大 ships an update every 6 weeks, and 查农证 fortnightly. Most recently, 法大大 was updated on November 6, 2026 and 查农证 on October 31, 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.*