# FX_最適ロット計算機～許容損失額を一定にするアプリ vs ランチャ

The clearest difference is review sentiment: FX_最適ロット計算機～許容損失額を一定にするアプリ at 40% against ランチャ's 0%. ランチャ's advantage is ads (none vs shown) and update cadence (fortnightly vs every 3 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. FX_最適ロット計算機～許容損失額を一定にするアプリ sells 1 in-app purchase, starting at $2.99 per month and ランチャ sells 9 in-app purchases, starting at $17.99 per month. Whichever you choose, the download price is not the number that matters.

FX_最適ロット計算機～許容損失額を一定にするアプリ ships an update every 3 months, ランチャ fortnightly. The most recent releases landed on October 21, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | FX_最適ロット計算機～許容損失額を一定にするアプリ | ランチャ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 39 MB | 107 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Koji Watanabe](https://appshunter.io/developer/1332653587) | [Advan inc.](https://appshunter.io/developer/542912248) |

## What reviewers say

### FX_最適ロット計算機～許容損失額を一定にするアプリ

[App page](https://appshunter.io/ios/app/fx/id1566085690)

Calculate optimal trade lot sizes based on your acceptable loss amount. This app helps manage risk for Forex and CFD trading, making it suitable for beginners. It supports various currencies, indices, and CFD sizes for precise position adjustments.

**Highlights:** Calculate lot size from acceptable loss, Supports Forex, Gold, Nikkei 225, and Dow Jones, Handles various currency and CFD sizes, Rounds lot numbers to the second decimal place, Real-time position size calculation, Supports stop-loss price for lot calculation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム機能 | $2.99 | per month |


### ランチャ

[App page](https://appshunter.io/ios/app/id1597228912)

This app provides objective trading skill evaluation with a 0-100 score and detailed analysis across 14 indicators. Practice with 20 years of historical market data and compete on a national leaderboard to improve your trading abilities.

**Highlights:** 0-100 trading score for objective evaluation, Analysis across 14 indicators, Practice with 20 years of historical market data, National ranking and leaderboards, Detailed advice on weaknesses, Game-like level progression

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン | $17.99 | per month |
| 年額プラン | $179.99 | per year |
| チャレンジチケット 1枚 | $0.99 | one-time |
| チャレンジチケット 3枚 | $3.99 | one-time |
| チャレンジチケット 10枚 | $10.99 | one-time |
| チャレンジチケット 20枚 | $15.99 | one-time |
| チャレンジチケット 50枚 | $38.99 | one-time |
| チャレンジチケット 100枚 | $69.99 | one-time |
| チャレンジチケット 500枚 | $209.99 | one-time |


## Frequently asked questions

### Is FX_最適ロット計算機～許容損失額を一定にするアプリ free?

FX_最適ロット計算機～許容損失額を一定にするアプリ is free to download, with in-app purchases available.

### Is ランチャ free?

ランチャ is free to download, with in-app purchases available.

### Do FX_最適ロット計算機～許容損失額を一定にするアプリ or ランチャ have ads?

FX_最適ロット計算機～許容損失額を一定にするアプリ shows ads; ランチャ does not.

### Which is updated more often, FX_最適ロット計算機～許容損失額を一定にするアプリ or ランチャ?

FX_最適ロット計算機～許容損失額を一定にするアプリ ships an update every 3 months, and ランチャ fortnightly. Most recently, FX_最適ロット計算機～許容損失額を一定にするアプリ was updated on October 21, 2026 and ランチャ on October 6, 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.*