# 单位&汇率换算 vs 水產養殖記錄

The clearest difference is price: 水產養殖記錄 at Free against 单位&汇率换算's $1.99. 单位&汇率换算's advantage is ads (none vs shown) and update cadence (every 3 months vs every 8 months). On in-app purchases and device support there is nothing between them.

水產養殖記錄 is free to download; 单位&汇率换算 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

单位&汇率换算 ships an update every 3 months, 水產養殖記錄 every 8 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 单位&汇率换算 | 水產養殖記錄 |
| --- | --- | --- |
| 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 | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Paid | — |
| Size | 8 MB | 17 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xin Zhou](https://appshunter.io/developer/505384440) | [YING CHIH HUA](https://appshunter.io/developer/789633901) |

## 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


### 水產養殖記錄

[App page](https://appshunter.io/ios/app/id6445895947)

**In-app purchases:** none


## 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 水產養殖記錄 free?

水產養殖記錄 is free to download, with no in-app purchases.

### Do 单位&汇率换算 or 水產養殖記錄 have ads?

水產養殖記錄 shows ads; 单位&汇率换算 does not.

### Which is updated more often, 单位&汇率换算 or 水產養殖記錄?

单位&汇率换算 ships an update every 3 months, and 水產養殖記錄 every 8 months. Most recently, 单位&汇率换算 was updated on November 1, 2026 and 水產養殖記錄 on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*