Comparison

Spam Text Blocker vs PDF workbench

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

Head to head
About

Spam Text Blocker

Automatically detect and block unwanted text messages using on-device AI. Keep your inbox clean and secure with customizable filters for SMS and RCS. Enjoy a distraction-free messaging experience.

Highlights
  • Automatic spam blocking with AI
  • On-device privacy
  • Customizable filters
  • SMS & RCS message filtering
  • Blocks 99% of spam texts
Features
Read full description

Tired of spam text messages flooding your inbox? Filtera automatically detect and block spam texts, keeping your messages clean and secure. Powered by a secure, on-device AI. Key Features: - Block 99% of spam texts. - Automatic Spam Blocking with AI. No manual filtering needed. - 100% Private and processed locally in your device. We never send your message to servers, keeping your messages safe. - Customize your filters with keywords, sender, or regular expression. - Filter spam in SMS & RCS messages No more distractions and stay focused with Filtera. Download now and and enjoy spam-free inbox! TERMS OF USE (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula PRIVACY POLICY https://filtera.ashidiqi.com/privacy

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!

Screenshots

Spam Text Blocker4 screens
PDF workbench4 screens

Verdict

The call

The clearest difference is ads: Spam Text Blocker at none against PDF workbench's shown. Spam Text Blocker also leads on ratings volume (11 vs 2). PDF workbench's advantage is rating (5.0 vs 4.5) and device support (3 vs 1). On price, review sentiment, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Spam Text Blocker sells 4 in-app purchases, starting at $1.49 per month and PDF workbench sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF workbench holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Spam Text Blocker has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Spam Text Blocker ships an update every 3 weeks, PDF workbench every 2 weeks. Both last shipped on November 4, 2026.

Scorecard5 real differences · 5 level
Spam Text Blocker versus PDF workbench: the parameters behind the verdict, then further details
ParameterSpam Text BlockerPDF workbench
PriceFreeFree
Rating4.5 (11 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11 — better2
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size27 MB27 MB
Age rating4+4+
DeveloperDimas AshidiqiNOVASCRIPTUM LLC

Customer experience

Spam Text Blocker

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PDF workbench

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Spam Text Blocker

Subscriptions2
  • Monthly Pro3 Days trial$1.491 Month
  • Yearly Pro7 Days trial$9.991 Year
One-time2
  • Lifetime Pro$11.99
  • Lifetime Pro$14.99
2 purchases

PDF workbench

Subscriptions2
  • Monthly$4.991 Month
  • Yearly$49.991 Year

Questions

Is Spam Text Blocker free?
Spam Text Blocker is free to download, with in-app purchases available.
Is PDF workbench free?
PDF workbench is free to download, with in-app purchases available.
Which has better reviews, Spam Text Blocker or PDF workbench?
PDF workbench is rated higher. Spam Text Blocker averages 4.5 out of 5 from 11 ratings, while PDF workbench averages 5.0 from 2 ratings.
Do Spam Text Blocker or PDF workbench have ads?
PDF workbench shows ads; Spam Text Blocker does not.
Which is updated more often, Spam Text Blocker or PDF workbench?
Spam Text Blocker ships an update every 3 weeks, and PDF workbench every 2 weeks. Most recently, Spam Text Blocker was updated on November 4, 2026 and PDF workbench on November 4, 2026.

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