CrushClient vs PolyPDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CrushClient
Access and manage files on your CrushFTP server remotely. Perform operations like listing, previewing, copying, moving, renaming, deleting, and sharing files. Upload and download files directly from your device.
- List files and folders
- Preview supported files
- File operations (copy, move, rename, delete)
- Download and upload files
- Share files to the server
- Support for welcome/upload forms
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Using CrushClient we can log in to CrushFTP server and list server files and do all file operations, actions supported are: - Listing files and folders - Preview of supported files - File operations like copy, paste, move, rename, delete, share, etc - We can download files and upload from the app - Other apps can share files to CrushClient and upload it to the server - Now welcome/upload forms are supported too
PolyPDF
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The PDF app built for AEC professionals who demand precision. PolyPDF revolutionizes how architects, engineers, and construction professionals work with PDF drawings and documents. Our advanced line detection algorithms and measurement tools turn static PDFs into intelligent, workable documents. KEY FEATURES Smart Line Detection - Advanced algorithms automatically detect lines in technical drawings - Three detection modes: Corner, Hough, and Simple for different document types - Perfect for CAD exports, scanned blueprints, and technical diagrams Precision Measurement Tools - Measure distances, areas, and angles directly on PDFs - Set custom scales for accurate real-world measurements - Export measurement data for estimates and reports Professional Markup - Comprehensive annotation toolkit designed for technical review - Callout bubbles with customizable arrow styles - Highlight, underline, and strikethrough text - Add shapes, lines, and freehand drawings - Color-coded annotations for different disciplines Built for Productivity - Native iPad and iPhone support with seamless sync - Document browser with visual previews - Page thumbnails for quick navigation - Annotation sidebar for easy management - Multi-tab support for working with multiple documents Why AEC Professionals Choose PolyPDF - Designed specifically for construction and design workflows - No more printing drawings for markup - Reduce errors with digital precision tools - Streamline communication with clear, professional annotations - Save time on site visits and punch lists PREMIUM FEATURES (Coming Soon) - Cloud sync across all devices - Team collaboration tools - Custom annotation libraries - Advanced measurement reports - CAD layer support - Batch processing Join thousands of AEC professionals who've upgraded their PDF workflow. Download PolyPDF today and experience the difference precision makes.
Screenshots
Verdict
The clearest difference is iOS requirement: CrushClient at 13.0 against PolyPDF's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CrushClient ships an update every 2 weeks, PolyPDF weekly. The most recent releases landed on September 8, 2026 and September 22, 2026 respectively.
| Parameter | CrushClient | PolyPDF |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 33 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Benjamin Spink | Mohammed Bala |
In-app purchases
CrushClient
No in-app purchases
PolyPDF
No in-app purchases









