# 桑野溯源 vs 真好算

The clearest difference is in-app purchases: 桑野溯源 at none against 真好算's 1. 桑野溯源 also leads on iOS requirement (15.0 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. 桑野溯源 asks for nothing beyond the download.

桑野溯源 ships an update every 2 months, 真好算 monthly. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 桑野溯源 | 真好算 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6449284621/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free |
| Size | 2 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Sangye Industrial Co.,Ltd](https://appshunter.io/developer/1460119805) | [滚宁 林](https://appshunter.io/developer/1688525702) |

## What reviewers say

### 桑野溯源

[App page](https://appshunter.io/ios/app/id1187186363)

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

**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

**In-app purchases (1)**

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


## Frequently asked questions

### Is 桑野溯源 free?

桑野溯源 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 桑野溯源 or 真好算 have ads?

Neither 桑野溯源 nor 真好算 shows ads.

### Which is updated more often, 桑野溯源 or 真好算?

桑野溯源 ships an update every 2 months, and 真好算 monthly. Most recently, 桑野溯源 was updated on October 3, 2026 and 真好算 on October 15, 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.*