# Clockbook vs PDF Reader

The clearest difference is rating: Clockbook at 5.0 against PDF Reader's 4.2. Clockbook also leads on in-app purchases (none vs 3) and ads (none vs shown). PDF Reader's advantage is ratings volume (51 vs 1) and update cadence (every 4 months vs every 12 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Reader sells 3 in-app purchases, starting at $2.49 per 7 days. Clockbook asks for nothing beyond the download.

Clockbook holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: PDF Reader has 51 ratings behind it against 1, so its average is the more settled of the two.

Clockbook ships an update every 12 months, PDF Reader every 4 months. The most recent releases landed on June 3, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Clockbook | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clockbook/id1612292467/reviews)** | [4.2 (51 ratings)](https://appshunter.io/ios/app/pdf-reader-pdf-viewer-edit/id6448322721/reviews) |
| Number of ratings | 1 | **51** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 44 MB | 16 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CDMBase LLC](https://appshunter.io/developer/1612292469) | [Mohit Rudani](https://appshunter.io/developer/1673702969) |

## What reviewers say

### Clockbook

[App page](https://appshunter.io/ios/app/clockbook/id1612292467)

This app allows managers to monitor and analyze the work progress and productivity of their remote workforce. It offers real-time timesheet management, project breakdown, and GPS location tracking for enhanced transparency and accuracy.

**Highlights:** Remote time tracking, Real-time timesheet management, Work progress monitoring, Breakdown by project, task, client, GPS location tracking, Cross-device syncing

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-pdf-viewer-edit/id6448322721)

This application allows users to read, edit, and manage PDF files on their mobile devices. It offers offline viewing for PDFs, Word, Excel, and PowerPoint documents, along with features like bookmarking and file renaming. Enhance your productivity with this essential document management tool.

**Highlights:** View local PDF files, Load files from Files app, Save and rename PDF files, Share PDFs easily, Bookmark PDF pages, Offline document viewing, Dark Mode for reading

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly   1 Week | $2.49 | per 7 days |
| Monthly   1 Month | $5.99 | per month |
| Yearly   1 Year | $24.99 | per year |


## Frequently asked questions

### Is Clockbook free?

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

### Is PDF Reader free?

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

### Which has better reviews, Clockbook or PDF Reader?

Clockbook is rated higher. Clockbook averages 5.0 out of 5 from 1 ratings, while PDF Reader averages 4.2 from 51 ratings.

### Do Clockbook or PDF Reader have ads?

PDF Reader shows ads; Clockbook does not.

### Which is updated more often, Clockbook or PDF Reader?

Clockbook ships an update every 12 months, and PDF Reader every 4 months. Most recently, Clockbook was updated on June 3, 2026 and PDF Reader on September 13, 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.*