# PDFScan Go vs ThreadFlow · Parallel Timer

The clearest difference is ads: ThreadFlow · Parallel Timer at none against PDFScan Go's shown. PDFScan Go's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | PDFScan Go | ThreadFlow · Parallel Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | — |
| Size | 41 MB | 43 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Duong Nguyen Huu](https://appshunter.io/developer/1887479789) | [Zero24 LLC](https://appshunter.io/developer/6777598182) |

## What reviewers say

### PDFScan Go

[App page](https://appshunter.io/ios/app/pdfscan-go/id6761462436)

**Features:** macOS Compatibility

**In-app purchases:** none


### ThreadFlow · Parallel Timer

[App page](https://appshunter.io/ios/app/threadflow-parallel-timer/id6805435326)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PDFScan Go free?

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

### Is ThreadFlow · Parallel Timer free?

ThreadFlow · Parallel Timer is free to download, with no in-app purchases.

### Do PDFScan Go or ThreadFlow · Parallel Timer have ads?

PDFScan Go shows ads; ThreadFlow · Parallel Timer does not.

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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.*