Comparison

PDF workbench vs OTPx

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PDF workbench

Edit, convert, and manage PDF documents with a comprehensive suite of tools. Transform images and documents into PDFs, extract text, merge files, and secure your documents with passwords and watermarks. Offers batch processing and an intuitive interface for efficient mobile PDF management.

Highlights
  • Convert images and documents to PDF
  • Convert PDFs to Word, JPEG, PNG
  • Merge and split PDF files
  • Add digital signatures and watermarks
  • Password protection for PDFs
  • Compress PDF file size
  • OCR text extraction
Features
Read full description

PDF workbench: The Complete PDF Editor and Converter. Create, edit, sign, and transform PDF documents instantly on your iPhone and iPad. KEY FEATURES: Convert Files to PDF: - Convert images into professional PDFs - Convert Word documents to PDF - Convert Excel spreadsheets to PDF - Create PDFs from text files Convert PDFs to Other Formats - Extract text from PDFs (OCR) - Convert PDFs to Word documents - Convert PDFs into high-quality images: JPEG and PNG Essential PDF Tools - Merge multiple PDFs into one document - Split PDFs and extract specific pages - Compress PDFs to reduce file size - Add digital signatures to documents - Apply custom watermarks - Protect PDFs with password encryption Professional Features - Multiple signature styles and fonts - Adjustable compression levels - Batch processing capabilities - Easy page organization - Custom watermark positioning - Flexible page selection User-Friendly Interface - Clean, intuitive design - Simple drag-and-drop functionality - Quick file preview - Easy document management - Organized file storage Perfect for professionals, students, and anyone who works with PDF documents. Our app provides all the tools you need to manage your PDFs efficiently on your mobile device. *Free version includes limited number of conversions; unlimited with subscription* *Ad-free experience available with subscription. *Subscription requires a purchase, price may vary depending on location. Some conversions are done on a secure cloud server so you must have an internet connection to use this app. You should be aware that by using this app, you agree that your files will be sent over the internet from the app to the cloud server for conversion. Note: price may vary depending on location. Information about the auto-renewal of subscription: - Payment will be charged to iTunes Account at confirmation of purchase; - Subscriptions are billed monthly or annually at the rate based on the subscription plan - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period; - The account will be charged for renewal within 24-hours before the end of the current period. The cost depends on the selected plan; - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase By downloading and using this app, you agree to our Terms of Use: http://pdfprism.novascriptum.com/terms-of-use/ Download now and transform the way you work with PDFs!

About

OTPx

Features
Read full description

OTPx is a simple, secure SMS syncing app designed to streamline how professionals and teams manage OTPs (One-Time Passwords). Whether you're handling GST filings, banking transactions, or TDS submissions, OTPx helps you access OTPs instantly—across devices or with authorized teammates—without using WhatsApp or manually copying messages. Key Highlights: Cross-Device OTP Syncing: Automatically sync incoming OTPs from your phone to other devices or users based on your rules. No manual forwarding needed. Team Sharing Made Easy: Share OTPs with teammates securely—ideal for businesses and professionals working across accounts or platforms. Generate Reports: Keep track of OTP history and access logs for audit or compliance needs. Runs in Background: Works silently without needing to open the app every time an OTP arrives. Quick Setup: Get started in under a minute with an easy, user-friendly interface. With OTPx, you no longer need to share OTPs over insecure channels. It’s the easiest way to sync OTPs, reduce hassle, and ensure your team always has access—when it matters most.

Screenshots

PDF workbench4 screens
OTPx4 screens

Verdict

The call

The clearest difference is in-app purchases: OTPx at none against PDF workbench's 2. OTPx also leads on ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). PDF workbench's advantage is device support (3 vs 1). On price and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PDF workbench sells 2 in-app purchases, starting at $4.99 per month. OTPx asks for nothing beyond the download.

UpkeepUpdate frequency

PDF workbench ships an update every 2 weeks, OTPx every 4 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
PDF workbench versus OTPx: the parameters behind the verdict, then further details
ParameterPDF workbenchOTPx
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 weeksEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size27 MB142 MB
Age rating4+4+
DeveloperNOVASCRIPTUM LLCBizFin

In-app purchases

2 purchases

PDF workbench

Subscriptions2
  • Monthly$4.991 Month
  • Yearly$49.991 Year
None

OTPx

No in-app purchases

Questions

Is PDF workbench free?
PDF workbench is free to download, with in-app purchases available.
Is OTPx free?
OTPx is free to download, with no in-app purchases.
Do PDF workbench or OTPx have ads?
PDF workbench shows ads; OTPx does not.
Which is updated more often, PDF workbench or OTPx?
PDF workbench ships an update every 2 weeks, and OTPx every 4 days. Most recently, PDF workbench was updated on October 24, 2026 and OTPx on October 8, 2026.

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