# 世界為替電卓 vs TripTune

The clearest difference is in-app purchases: 世界為替電卓 at none against TripTune's 2. 世界為替電卓 also leads on iOS requirement (13.0 vs 17.0). TripTune's advantage is ads (none vs shown) and update cadence (every 9 days vs every 42 months). On price and device support there is nothing between them.

Both are free to download. TripTune sells 2 one-off in-app purchases. 世界為替電卓 asks for nothing beyond the download.

世界為替電卓 ships an update every 42 months, TripTune every 9 days. The most recent releases landed on August 13, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 世界為替電卓 | TripTune |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id1037180477/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 42 months | **Every 9 days** |
| Size | 7 MB | 45 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kousaka Kirino](https://appshunter.io/developer/1037180476) | [Ryota Kurokawa](https://appshunter.io/developer/1802100707) |

## What reviewers say

### 世界為替電卓

[App page](https://appshunter.io/ios/app/id1037180477)

**Features:** macOS Compatibility

**In-app purchases:** none


### TripTune

[App page](https://appshunter.io/ios/app/triptune/id6748872777)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee. | $2.99 | one-time |
| Buy me a beer. | $5.99 | one-time |


## Frequently asked questions

### Is 世界為替電卓 free?

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

### Is TripTune free?

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

### Do 世界為替電卓 or TripTune have ads?

世界為替電卓 shows ads; TripTune does not.

### Which is updated more often, 世界為替電卓 or TripTune?

世界為替電卓 ships an update every 42 months, and TripTune every 9 days. Most recently, 世界為替電卓 was updated on August 13, 2026 and TripTune on September 19, 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.*