# PropSize vs SizeRight

The clearest difference is in-app purchases: SizeRight at none against PropSize's 2. SizeRight also leads on update cadence (every 3 weeks vs every 2 months). PropSize's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PropSize sells 2 in-app purchases, starting at $8.99 per month. SizeRight asks for nothing beyond the download.

PropSize ships an update every 2 months, SizeRight every 3 weeks. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PropSize | SizeRight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 38 MB | 26 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [JUSTICE UGHELIE](https://appshunter.io/developer/1891163244) | [Alexander Bacsa](https://appshunter.io/developer/1895938685) |

## What reviewers say

### 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 |


### SizeRight

[App page](https://appshunter.io/ios/app/sizeright-position-size/id6764857338)

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

**In-app purchases:** none


## Frequently asked questions

### Is PropSize free?

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

### Is SizeRight free?

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

### Do PropSize or SizeRight have ads?

SizeRight shows ads; PropSize does not.

### Which is updated more often, PropSize or SizeRight?

PropSize ships an update every 2 months, and SizeRight every 3 weeks. Most recently, PropSize was updated on October 22, 2026 and SizeRight on October 25, 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.*