# Countdown vs PDFScan

The clearest difference is ads: Countdown at none against PDFScan's shown. PDFScan's advantage is update cadence (every 3 weeks vs every 3 months). On price, in-app purchases, device support 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.

Countdown ships an update every 3 months, PDFScan every 3 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Countdown | PDFScan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 54 MB | 40 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gunawan Santoso](https://appshunter.io/developer/1843786072) | [Ann ANN WAMBUI NJUGUNA](https://appshunter.io/developer/1895391479) |

## What reviewers say

### Countdown

[App page](https://appshunter.io/ios/app/countdown-days-until-event/id6762178578)

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

**In-app purchases:** none


### PDFScan

[App page](https://appshunter.io/ios/app/pdfscan-doc-and-file-scanner/id6763644246)

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

**In-app purchases:** none


## Frequently asked questions

### Is Countdown free?

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

### Is PDFScan free?

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

### Do Countdown or PDFScan have ads?

PDFScan shows ads; Countdown does not.

### Which is updated more often, Countdown or PDFScan?

Countdown ships an update every 3 months, and PDFScan every 3 weeks. Most recently, Countdown was updated on October 26, 2026 and PDFScan 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.*