# Position Size Calculator vs PropSize

The clearest difference is iOS requirement: PropSize at 15.1 against Position Size Calculator's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Position Size Calculator sells 5 in-app purchases, starting at $2.99 per 7 days and PropSize sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Position Size Calculator ships an update every 3 months, PropSize every 2 months. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Position Size Calculator | PropSize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/position-size-calculator-grid/id6743808232/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Subscription | — |
| Size | 6 MB | 38 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Christoph Stadelbauer](https://appshunter.io/developer/1746084312) | [JUSTICE UGHELIE](https://appshunter.io/developer/1891163244) |

## What reviewers say

### Position Size Calculator

[App page](https://appshunter.io/ios/app/position-size-calculator-grid/id6743808232)

This app provides quick and accurate lot size calculations for various trading instruments directly on your mobile device. It supports Forex, Metals, Commodities, Indices, and Crypto, with a customizable instrument library and support for all major account currencies.

**Highlights:** Accurate lot size calculations, Supports Forex, Metals, Commodities, Indices, Crypto, Customizable contract size, tick size, tick value, Built-in instrument library, Works with all major account currencies, Fast and minimal interface

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grid Premium | $2.99 | per 7 days |
| Grid Premium | $4.99 | per 7 days |
| Grid Premium | $19.99 | per year |
| Grid Premium | $29.99 | per year |
| Grid Premium Lifetime | $89.99 | one-time |


### PropSize

[App page](https://appshunter.io/ios/app/propsize-lot-size-calculator/id6761734569)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PropSize Monthly | $8.99 | per month |
| PropSize Annual | $59.99 | per year |


## Frequently asked questions

### Is Position Size Calculator free?

Position Size Calculator is free to download, with in-app purchases available.

### Is PropSize free?

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

### Do Position Size Calculator or PropSize have ads?

Neither Position Size Calculator nor PropSize shows ads.

### Which is updated more often, Position Size Calculator or PropSize?

Position Size Calculator ships an update every 3 months, and PropSize every 2 months. Most recently, Position Size Calculator was updated on October 30, 2026 and PropSize on November 9, 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.*