# Tracking BD vs PDF Reader

The clearest difference is in-app purchases: Tracking BD at none against PDF Reader's 2. Tracking BD also leads on ads (none vs shown). PDF Reader's advantage is update cadence (every 10 days vs every 3 months) and chart position (#99 vs unranked). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Reader sells 2 in-app purchases, starting at $5.99 per 7 days. Tracking BD asks for nothing beyond the download.

Tracking BD ships an update every 3 months, PDF Reader every 10 days. The most recent releases landed on October 18, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Tracking BD | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (477 ratings)](https://appshunter.io/ios/app/pdf-reader-ocr-scan-edit/id6754001880/reviews)** |
| Number of ratings | — | **477** |
| Positive reviews | — | 42.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#99** |
| Size | 63 MB | 72 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Gemcon Food & Agricultural Products Limited](https://appshunter.io/developer/1697258604) | [Fuzhou Jiange Technology Co., Ltd.](https://appshunter.io/developer/1821346905) |

## What reviewers say

### Tracking BD

[App page](https://appshunter.io/ios/app/tracking-bd/id6742638836)

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

**In-app purchases:** none


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-ocr-scan-edit/id6754001880)

**Currently charting:** #99 Top Free · Productivity (US App Store)

This mobile app acts as a PDF office assistant, offering features for editing, scanning, and optical character recognition. It allows for easy document management, page manipulation, and conversion of images and paper documents into editable digital files.

**Highlights:** PDF Editing, Image to PDF conversion, Import PDF files, OCR Text Recognition, Add, delete, rearrange pages, Filters, highlights, annotations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Reader Ad-Free | $5.99 | per 7 days |
| PDF Reader Ad-Free | $29.99 | per year |


## Frequently asked questions

### Is Tracking BD free?

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

### Is PDF Reader free?

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

### Do Tracking BD or PDF Reader have ads?

PDF Reader shows ads; Tracking BD does not.

### Which is updated more often, Tracking BD or PDF Reader?

Tracking BD ships an update every 3 months, and PDF Reader every 10 days. Most recently, Tracking BD was updated on October 18, 2026 and PDF Reader on October 20, 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.*