PDF Studio vs PLC Signal Explorer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Studio
Read full descriptionHide full description
Welcome to PDF Studio, the ultimate PDF management app designed to provide a comprehensive and powerful document editing experience. The app is equipped with features that cater to both casual users and professionals, ensuring seamless PDF handling for all your needs. Key Features: Scan: Create PDF documents directly from your device camera by scanning physical documents. Images to PDF: Convert multiple images into a single PDF document with ease. Merge: Combine multiple PDF files into one unified document. Split: Divide a single PDF file into separate documents as needed. Watermark: Add custom watermarks to protect and brand your PDF documents. Annotate: Add notes, comments, and annotations to your PDF files. Create: Build new PDF documents from scratch with full customization options. Edit: Add text and images to existing PDF documents. Sign: Add digital signatures to PDF files for authentication and approval. Page Numbers: Insert page numbers throughout your PDF documents. Lock: Secure your PDF files with password protection. Unlock: Remove password protection from locked PDF files. Page Size: Change the page size of your PDF documents to standard formats. Crop: Crop PDF pages to remove unwanted margins or focus on specific content. Compress: Reduce PDF file size without significant quality loss. Rotate Pages: Rotate PDF pages to correct orientation. Extract Pages: Extract specific pages from PDF documents. Duplicate Pages: Create copies of pages within your PDF. Remove Pages: Delete unwanted pages from PDF documents. Rearrange Pages: Reorder pages in your PDF files. Blank Pages: Insert blank pages into your PDF documents. Flip Pages: Flip PDF pages horizontally or vertically. Page Filter: Apply filters like black and white or grayscale to PDF pages. PDF to MP3: Convert PDF text content to audio files. PDF to Images: Convert PDF pages to image files. PDF to TXT: Extract text content from PDF files. Elevate your PDF management experience with PDF Studio, where every feature is crafted to support your document needs. Whether you're merging reports, signing contracts, or organizing documents, the app is your perfect PDF companion. Developed by Anvaysoft Programmer - Hrishi Suthar Made with love in India
PLC Signal Explorer
Read full descriptionHide full description
PLC Signal Explorer is a powerful industrial utility designed for PLC engineers, automation specialists, and technicians who need a faster way to understand and trace PLC signals across projects. The app bridges the gap between PLC hardware tag tables and SCL software blocks by intelligently linking physical I/O addresses to their corresponding signals inside Function Blocks. This makes troubleshooting, diagnostics, and system understanding significantly easier and faster. With support for common industrial file formats, PLC Signal Explorer allows you to load tag tables and SCL blocks, then instantly search across addresses, tag names, signals, blocks, and comments. Smart matching highlights the most relevant signals, helping you quickly identify relationships that are often difficult to trace manually. Key Features: • Smart signal matching between PLC tags and SCL blocks • Instant search by address, tag name, signal, block, or keyword • Clear separation of INPUT, OUTPUT, INOUT, and STATIC signals • Support for CSV, XLSX, SCL, and XML file formats • Dark and Light mode with persistent user settings • Built-in SCL state machine parsing for deeper insight • Designed for offline use with no cloud dependency PLC Signal Explorer is built as a practical tool for real-world industrial environments, helping engineers save time, reduce errors, and gain better visibility into complex PLC logic.
Screenshots
Verdict
The clearest difference is iOS requirement: PDF Studio at 13.0 against PLC Signal Explorer's 16.6. On price, ads, in-app purchases and device support 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.
| Parameter | PDF Studio | PLC Signal Explorer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 46 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Hrishi Suthar | Yagoub Dagriri |
In-app purchases
PDF Studio
No in-app purchases
PLC Signal Explorer
No in-app purchases
Questions
Is PDF Studio free?
Is PLC Signal Explorer free?
Do PDF Studio or PLC Signal Explorer have ads?
Other comparisons















