# PDF Compressor vs ChartBriefs Scribe

The clearest difference is ads: ChartBriefs Scribe at none against PDF Compressor's shown. ChartBriefs Scribe also leads on update cadence (weekly vs every 11 months). PDF Compressor's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Compressor sells 3 in-app purchases, starting at $0.99 per 7 days and ChartBriefs Scribe sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDF Compressor ships an update every 11 months, ChartBriefs Scribe weekly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | PDF Compressor | ChartBriefs Scribe |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Weekly** |
| Size | 15 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Rupareliya](https://appshunter.io/developer/1768692577) | [Chart Biopsy LP](https://appshunter.io/developer/6808473023) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-compress-pdf/id6754836336)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly   1 Week | $0.99 | per 7 days |
| Monthly   1 Month | $2.99 | per month |
| Yearly   1 Year | $19.99 | per year |


### ChartBriefs Scribe

[App page](https://appshunter.io/ios/app/chartbriefs-scribe/id6808473021)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Hours of Transcription | $34.99 | one-time |
| 15 Hours of Transcription | $89.99 | one-time |
| 30 Hours of Transcription | $149.99 | one-time |


## Frequently asked questions

### Is PDF Compressor free?

PDF Compressor is free to download, with in-app purchases available.

### Is ChartBriefs Scribe free?

ChartBriefs Scribe is free to download, with in-app purchases available.

### Do PDF Compressor or ChartBriefs Scribe have ads?

PDF Compressor shows ads; ChartBriefs Scribe does not.

### Which is updated more often, PDF Compressor or ChartBriefs Scribe?

PDF Compressor ships an update every 11 months, and ChartBriefs Scribe weekly. Most recently, PDF Compressor was updated on October 28, 2026 and ChartBriefs Scribe on October 29, 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.*