# 為替電卓FX vs Ex Rate Calc

The clearest difference is ads: 為替電卓FX at none against Ex Rate Calc's shown. 為替電卓FX also leads on review sentiment (81% vs 50%) and monetization model (free vs ad-supported). Ex Rate Calc's advantage is update cadence (every 2 months vs every 4 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

為替電卓FX ships an update every 4 months, Ex Rate Calc every 2 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | 為替電卓FX | Ex Rate Calc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **80.8% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 7 MB | 9 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mirai Kuriyama](https://appshunter.io/developer/878843623) | [Fumiya Shigehara](https://appshunter.io/developer/1607648664) |

## What reviewers say

### 為替電卓FX

[App page](https://appshunter.io/ios/app/fx/id1033239665)

This app combines a calculator with currency exchange functionality for over 140 countries. It's ideal for travelers needing to convert prices or for finance professionals tracking investments.

**Highlights:** Calculator function, Currency conversion, Exchange rate updates, Supports 140+ countries, Finance tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Ex Rate Calc

[App page](https://appshunter.io/ios/app/ex-rate-calc-widget-based/id6744843796)

This app offers quick and accurate currency conversions with an intuitive interface. It's designed for travelers and business professionals, allowing you to save results and even work offline.

**Highlights:** Quick currency conversions, Accurate exchange rates, Intuitive interface, Save calculation results, Offline functionality, Widget support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 為替電卓FX free?

為替電卓FX is free to download, with no in-app purchases.

### Is Ex Rate Calc free?

Ex Rate Calc is free to download, with no in-app purchases.

### Do 為替電卓FX or Ex Rate Calc have ads?

Ex Rate Calc shows ads; 為替電卓FX does not.

### Which is updated more often, 為替電卓FX or Ex Rate Calc?

為替電卓FX ships an update every 4 months, and Ex Rate Calc every 2 months. Most recently, 為替電卓FX was updated on October 7, 2026 and Ex Rate Calc on October 7, 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.*