# Position Size Calculator vs Vantage Portfolio

The clearest difference is in-app purchases: Vantage Portfolio at none against Position Size Calculator's 5. Vantage Portfolio also leads on update cadence (every 4 days vs every 3 months). On price, ads, device support and iOS requirement 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. Vantage Portfolio asks for nothing beyond the download.

Position Size Calculator ships an update every 3 months, Vantage Portfolio every 4 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Position Size Calculator | Vantage Portfolio |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Subscription | — |
| Size | 6 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Christoph Stadelbauer](https://appshunter.io/developer/1746084312) | [Selavi](https://appshunter.io/developer/1892442015) |

## 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 |


### Vantage Portfolio

[App page](https://appshunter.io/ios/app/vantage-portfolio/id6784862081)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Position Size Calculator free?

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

### Is Vantage Portfolio free?

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

### Do Position Size Calculator or Vantage Portfolio have ads?

Neither Position Size Calculator nor Vantage Portfolio shows ads.

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

Position Size Calculator ships an update every 3 months, and Vantage Portfolio every 4 days. Most recently, Position Size Calculator was updated on October 28, 2026 and Vantage Portfolio on October 28, 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.*