# PolyPDF vs Vector Flow

The clearest difference is in-app purchases: PolyPDF at none against Vector Flow's 1. Vector Flow's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Vector Flow sells 1 one-off in-app purchase. PolyPDF asks for nothing beyond the download.

## The numbers

| Metric | PolyPDF | Vector Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/polypdf/id6751167250/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Freemium | — |
| Size | 57 MB | 21 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Euclidean Software LLC](https://appshunter.io/developer/955362555) | [Abhijnan Maji](https://appshunter.io/developer/6772438606) |

## 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


### Vector Flow

[App page](https://appshunter.io/ios/app/vector-flow-animator/id6783059136)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Export | $4.99 | one-time |


## Frequently asked questions

### Is PolyPDF free?

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

### Is Vector Flow free?

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

### Do PolyPDF or Vector Flow have ads?

Neither PolyPDF nor Vector Flow shows ads.

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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.*