# PDFForge vs ChessLock

The clearest difference is review sentiment: PDFForge at 86% against ChessLock's 67%. PDFForge also leads on rating (5.0 vs 4.8). ChessLock's advantage is device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. PDFForge sells 4 in-app purchases, starting at $2.99 per month and ChessLock sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

PDFForge holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 86% of PDFForge's written reviews are positive against 67% of ChessLock's.

PDFForge ships an update every 2 weeks, ChessLock fortnightly. The most recent releases landed on September 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PDFForge | ChessLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/pdfforge-pdf-scanner-and-edit/id6744874734/reviews)** | [4.8 (4 ratings)](https://appshunter.io/ios/app/chesslock-screen-time-control/id6744930081/reviews) |
| Number of ratings | **8** | 4 |
| Positive reviews | **85.7% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 5 MB | 50 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [MefjuDev LLC](https://appshunter.io/developer/1777787735) | [Patricio Guzman](https://appshunter.io/developer/1707843725) |

## What reviewers say

### PDFForge

[App page](https://appshunter.io/ios/app/pdfforge-pdf-scanner-and-edit/id6744874734)

Transform your iPhone into a comprehensive document management tool. Easily scan, edit, sign, and extract text from PDFs with advanced OCR capabilities. Sync your work across devices seamlessly.

**Highlights:** High-quality document scanning, Bulk scanning for multiple pages, Full PDF editing toolkit, Advanced OCR text recognition, Digital signature insertion, iCloud cross-device syncing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| 3 Months | $7.99 | per 3 months |
| Yearly | $24.99 | per year |
| PDFForge Pro | $0.99 | one-time |


### ChessLock

[App page](https://appshunter.io/ios/app/chesslock-screen-time-control/id6744930081)

This app helps you control screen time by blocking distracting applications. To take a break, you must solve chess puzzles, sharpening your mind and earning your pause. It's designed for anyone seeking enhanced focus and productivity with a unique, brain-boosting approach.

**Highlights:** Block distracting apps, Solve chess puzzles for breaks, Customizable focus sessions, Brain-training puzzles, Private by design, no data collection, Pro version for advanced features

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chesslock Pro | $2.99 | per month |
| Chesslock Pro | $19.99 | per year |
| Chesslock Pro | $29.99 | per year |
| Chesslock Pro | $17.49 | one-time |
| Chesslock Pro | $34.99 | one-time |


## Frequently asked questions

### Is PDFForge free?

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

### Is ChessLock free?

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

### Which has better reviews, PDFForge or ChessLock?

PDFForge is rated higher. PDFForge averages 5.0 out of 5 from 8 ratings, while ChessLock averages 4.8 from 4 ratings.

### Do PDFForge or ChessLock have ads?

Neither PDFForge nor ChessLock shows ads.

### Which is updated more often, PDFForge or ChessLock?

PDFForge ships an update every 2 weeks, and ChessLock fortnightly. Most recently, PDFForge was updated on September 24, 2026 and ChessLock on October 12, 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.*