# 单位&汇率换算 vs Pingman

The clearest difference is price: Pingman at Free against 单位&汇率换算's $1.99. Pingman also leads on device support (4 vs 2). 单位&汇率换算's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 16). On update cadence and ads there is nothing between them.

Pingman is free to download; 单位&汇率换算 costs $1.99 up front. Pingman sells 3 in-app purchases, starting at $0.29 per month. 单位&汇率换算 asks for nothing beyond the download.

单位&汇率换算 ships an update every 3 months, Pingman every 5 months. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 单位&汇率换算 | Pingman |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/and/id513618181/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Paid | — |
| Size | 8 MB | 26 MB |
| Requires iOS | **11.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Xin Zhou](https://appshunter.io/developer/505384440) | [伟 葛](https://appshunter.io/developer/1028908732) |

## What reviewers say

### 单位&汇率换算

[App page](https://appshunter.io/ios/app/and/id513618181)

This app offers comprehensive unit conversion for area, weight, volume, temperature, length, speed, pressure, fuel consumption, power, energy, torque, and angles. It also includes currency exchange for 46 countries and a calculator with tax computation and data transfer between functions.

**Highlights:** Extensive unit conversions (area, weight, volume, etc.), Currency exchange for 46 countries, Integrated calculator with tax function, Data transfer between converter and calculator, Unit search functionality, Supports various mathematical operations

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

**In-app purchases:** none


### Pingman

[App page](https://appshunter.io/ios/app/pingman-a-ping-tool/id6746965846)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pingman Pro | $0.29 | per month |
| Pingman Pro | $0.99 | per year |
| Pingman Pro | $2.99 | one-time |


## Frequently asked questions

### Is 单位&汇率换算 free?

单位&汇率换算 costs $1.99, with no in-app purchases.

### Is Pingman free?

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

### Do 单位&汇率换算 or Pingman have ads?

Neither 单位&汇率换算 nor Pingman shows ads.

### Which is updated more often, 单位&汇率换算 or Pingman?

单位&汇率换算 ships an update every 3 months, and Pingman every 5 months. Most recently, 单位&汇率换算 was updated on October 2, 2026 and Pingman on September 20, 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.*