# PolyPDF vs AIRSTEP GP

The clearest difference is iOS requirement: AIRSTEP GP at 13.0 against PolyPDF's 17.0. 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.

PolyPDF ships an update every 3 weeks, AIRSTEP GP fortnightly. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PolyPDF | AIRSTEP GP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/polypdf/id6751167250/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Freemium | — |
| Size | 57 MB | 28 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Euclidean Software LLC](https://appshunter.io/developer/955362555) | [XSONIC Inc.](https://appshunter.io/developer/1487765084) |

## What reviewers say

### PolyPDF

[App page](https://appshunter.io/ios/app/polypdf/id6751167250)

This app provides a PDF studio for drawing-set review and markup on iPad and iPhone. It allows users to open plans, navigate pages, measure to scale, add various annotations, and save their work. Advanced features are available via an optional Pro purchase.

**Highlights:** Drawing-set review, PDF markup tools, Measure to scale, Add callouts, shapes, stamps, Markup Table for findings, Export and share PDFs

**Features:** Vision Pro support

**In-app purchases:** none


### AIRSTEP GP

[App page](https://appshunter.io/ios/app/airstep-gp/id6775702124)

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

**In-app purchases:** none


## Frequently asked questions

### Is PolyPDF free?

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

### Is AIRSTEP GP free?

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

### Do PolyPDF or AIRSTEP GP have ads?

Neither PolyPDF nor AIRSTEP GP shows ads.

### Which is updated more often, PolyPDF or AIRSTEP GP?

PolyPDF ships an update every 3 weeks, and AIRSTEP GP fortnightly. Most recently, PolyPDF was updated on October 8, 2026 and AIRSTEP GP on October 16, 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.*