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

The clearest difference is in-app purchases: CardCalc at none against FX_最適ロット計算機～許容損失額を一定にするアプリ's 1. CardCalc also leads on ads (none vs shown) and update cadence (every 10 days vs every 3 months). FX_最適ロット計算機～許容損失額を一定にするアプリ's advantage is iOS requirement (13.0 vs 16.0). On price 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. CardCalc asks for nothing beyond the download.

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, CardCalc every 10 days. The most recent releases landed on October 10, 2026 and October 17, 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 | CardCalc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 6 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Koji Watanabe](https://appshunter.io/developer/1332653587) | [Takumi Sekiguchi](https://appshunter.io/developer/1896725776) |

## 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 |


### CardCalc

[App page](https://appshunter.io/ios/app/cardcalc-spending-tracker/id6790125861)

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

**In-app purchases:** none


## 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 CardCalc free?

CardCalc is free to download, with no in-app purchases.

### 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 CardCalc 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; CardCalc 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 CardCalc?

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 CardCalc every 10 days. 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 10, 2026 and CardCalc on October 17, 2026.

---

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