# GPL Checkout vs Quadrangular 527

The clearest difference is iOS requirement: Quadrangular 527 at 13.0 against GPL Checkout's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GPL Checkout ships an update every 4 weeks, Quadrangular 527 fortnightly. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | GPL Checkout | Quadrangular 527 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Size | 408 MB | 40 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Meescan Inc.](https://appshunter.io/developer/1609729285) | [Igreja do Evangelho Quadrangular](https://appshunter.io/developer/1499571511) |

## What reviewers say

### GPL Checkout

[App page](https://appshunter.io/ios/app/gpl-checkout/id6467030947)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quadrangular 527

[App page](https://appshunter.io/ios/app/quadrangular-527/id6502913908)

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

**In-app purchases:** none


## Frequently asked questions

### Is GPL Checkout free?

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

### Is Quadrangular 527 free?

Quadrangular 527 is free to download, with no in-app purchases.

### Do GPL Checkout or Quadrangular 527 have ads?

Neither GPL Checkout nor Quadrangular 527 shows ads.

### Which is updated more often, GPL Checkout or Quadrangular 527?

GPL Checkout ships an update every 4 weeks, and Quadrangular 527 fortnightly. Most recently, GPL Checkout was updated on September 24, 2026 and Quadrangular 527 on September 23, 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.*