# Forex Calculator vs FX LotSize

The clearest difference is price: FX LotSize at Free against Forex Calculator's $5.99. FX LotSize also leads on update cadence (every 3 days vs every 2 months). Forex Calculator's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads there is nothing between them.

FX LotSize is free to download; Forex Calculator costs $5.99 up front. FX LotSize sells 1 one-off in-app purchase. Forex Calculator asks for nothing beyond the download.

Forex Calculator ships an update every 2 months, FX LotSize every 3 days. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Forex Calculator | FX LotSize |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 25 MB | 8 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Advan inc.](https://appshunter.io/developer/542912248) | [yuki kawahito](https://appshunter.io/developer/1668178650) |

## What reviewers say

### Forex Calculator

[App page](https://appshunter.io/ios/app/forex-calculator-pipopapips/id1595986234)

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

**In-app purchases:** none


### FX LotSize

[App page](https://appshunter.io/ios/app/fx-lotsize/id6445845651)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Currency Pair | $5.99 | one-time |


## Frequently asked questions

### Is Forex Calculator free?

Forex Calculator costs $5.99, with no in-app purchases.

### Is FX LotSize free?

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

### Do Forex Calculator or FX LotSize have ads?

Neither Forex Calculator nor FX LotSize shows ads.

### Which is updated more often, Forex Calculator or FX LotSize?

Forex Calculator ships an update every 2 months, and FX LotSize every 3 days. Most recently, Forex Calculator was updated on October 8, 2026 and FX LotSize on October 5, 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.*