# 公证员版 vs 真好算

The clearest difference is in-app purchases: 公证员版 at none against 真好算's 1. 公证员版 also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 真好算 sells 1 one-off in-app purchase. 公证员版 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 公证员版 | 真好算 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6449284621/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 69.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | — | Free |
| Size | 73 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Faxingongzhengyun (Xiamen) Science and Technology Ltd](https://appshunter.io/developer/982181129) | [滚宁 林](https://appshunter.io/developer/1688525702) |

## What reviewers say

### 公证员版

[App page](https://appshunter.io/ios/app/id1546972629)

**Features:** macOS Compatibility

**In-app purchases:** none


### 真好算

[App page](https://appshunter.io/ios/app/id6449284621)

A user-friendly calculator app designed for everyday use, featuring a clean interface and one-handed operation. It offers quick access to history, unit conversions, currency exchange, and more, all without ads.

**Highlights:** One-handed operation, Recent calculation history display, Unit conversion tools, Currency exchange rates, Amount to Chinese characters, BMI calculator, Ad-free experience

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 真好算 PRO | $5.99 | one-time |


## Frequently asked questions

### Is 公证员版 free?

公证员版 is free to download, with no in-app purchases.

### Is 真好算 free?

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

### Do 公证员版 or 真好算 have ads?

Neither 公证员版 nor 真好算 shows ads.

### Which is updated more often, 公证员版 or 真好算?

公证员版 ships an update monthly, and 真好算 monthly. Most recently, 公证员版 was updated on October 27, 2026 and 真好算 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.*