Comparison

HWM PRISM vs Simple Pdf

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

Head to head
About

HWM PRISM

Features
Read full description

An innovative way to keep track of Deployed, In-Transit and Stored HWM Inventory and Inventory Location. Features include: 1. Safe login into the Datagate system; 2. Rapid scanning of pallets and individual devices; 3. Data instantly updated on Datagate. Associations can be created in as little as 3 steps: 1. Scan the device; 2. Select the account to associate the device to; 3. Update! Please make sure to review our privacy policy: https://www.hwmglobal.com/privacy-policy-mobile-apps/

About

Simple Pdf

This comprehensive utility allows users to view, edit, and manage PDF documents. Features include text editing, digital signatures, OCR for text extraction, document scanning, and file compression. It offers a fast and private offline experience for all your PDF needs.

Highlights
  • Fast PDF viewing and search
  • Read aloud functionality (TTS)
  • OCR for text extraction
  • Edit PDF text and redact
  • Digital signatures
  • HD document scanning
  • Merge and split PDFs
  • PDF compression
Features
Read full description

The ultimate all-in-one PDF Reader, Editor & Scanner. View, edit text, sign, read aloud, extract text with OCR, merge, split, compress, and password-protect your documents with blazing speed and complete offline privacy. Whether you are signing contracts, listening to eBooks, extracting text from scanned receipts, or organizing business reports, this is the only PDF toolkit you will ever need on your iPhone and iPad. ◆ KEY FEATURES ◆ ◆ FAST VIEWER & IN-DOCUMENT SEARCH ◆ • Lightning-fast rendering for PDFs of any size. • Real-time in-document text search with highlighted matches. • Smooth scrolling, jump-to-page navigation, and cover thumbnail previews. • Organize your library with list/grid views and one-tap Favorites. ◆ NATURAL READ ALOUD (TTS) ◆ • Listen to any PDF narrated with high-quality system voices. • Story-like pacing: respects commas, periods, headings, and paragraph transitions. • Voice Selector: Choose and preview your favorite voice and language in Settings. • Background audio session configured to play even when the physical silent switch is engaged. ◆ AI TEXT RECOGNITION (OCR) ◆ • Turn scanned documents and photo-based PDFs into clear, editable text. • High-accuracy optical character recognition powered by on-device intelligence. • Copy extracted text to your clipboard or export it instantly. ◆ EDIT PDF TEXT & WHITEOUT ◆ • Insert custom text directly onto any PDF page. • Customize text color, font size, and alignment. • Built-in Whiteout tool to redact, cover, or clean up unwanted text and marks. ◆ DIGITAL SIGNATURES MADE SIMPLE ◆ • Create and store multiple handwritten signatures. • Place, scale, and align your signature on contracts and agreements. • Save and export signed documents without leaving the app. ◆ WATERMARKS & PAGE NUMBERS ◆ • Add confidential, draft, or custom text watermarks with adjustable angle and opacity. • Insert customizable page numbers with multiple format options (1/N, Page X of Y) and flexible positioning. ◆ HD DOCUMENT SCANNER ◆ • Turn your device camera into a high-definition portable scanner. • Automatic edge detection, perspective correction, and contrast enhancement. • Digitize physical receipts, invoices, whiteboards, and IDs into multi-page PDFs. ◆ MERGE & SPLIT PDFS ◆ • Combine multiple PDF files into one clean, consolidated report. • Split large PDFs into individual documents or separate page ranges. ◆ POWERFUL IMAGE CONVERSION ◆ • Photos to PDF: Convert camera shots and gallery photos into crisp PDF files. • PDF to Images: Extract and export any document page directly to your Photos gallery. ◆ SMART PDF COMPRESSION ◆ • Shrink file sizes by up to 85% while preserving crystal-clear text quality. • Free up device storage and easily send files over Email or messaging apps. ◆ REORDER, ROTATE & MANAGE PAGES ◆ • Effortlessly reorder pages using intuitive drag-and-drop. • Rotate individual pages (90°, 180°, 270°) to correct orientation. • Delete unwanted pages before sharing your final document. ◆ FOLDERS & NATIVE FILES SYNC ◆ • Create custom folders to categorize your files. • Automatic sync: PDFs saved in the iOS Files app under "On My iPhone / Simple Pdf-reader" appear automatically. • AI Smart Rename: Analyze document contents and generate smart names instantly. ◆ PASSWORD ENCRYPTION & PRIVACY FIRST ◆ • Lock confidential PDFs with password encryption. • Remove passwords with authorized access. • 100% Offline: Your sensitive files stay private on your device and are never uploaded to remote servers. ◆ EASY FILE SHARING & PRINTING ◆ • Print documents directly via AirPrint. • Instant sharing via AirDrop, Messages, Mail, WhatsApp, and Files. ◆ TERMS OF USE & PRIVACY POLICY ◆ Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/simplepdfreader/privacy-policy

Screenshots

HWM PRISM3 screens
Simple Pdf4 screens

Verdict

The call

The clearest difference is in-app purchases: HWM PRISM at none against Simple Pdf's 3. HWM PRISM also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.5). Simple Pdf's advantage is update cadence (every 3 months vs every 8 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Simple Pdf sells 3 in-app purchases, starting at $3.99 per month. HWM PRISM asks for nothing beyond the download.

UpkeepUpdate frequency

HWM PRISM ships an update every 8 months, Simple Pdf every 3 months. The most recent releases landed on October 19, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
HWM PRISM versus Simple Pdf: the parameters behind the verdict, then further details
ParameterHWM PRISMSimple Pdf
PriceFreeFree
Rating—3.2 (6 ratings) — better
Positive reviews—28.6% of reviews
Number of ratings—6 — better
Update frequencyEvery 8 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better15.5
Further details — not scored
Size38 MB77 MB
Age rating4+4+
DeveloperHWM-Water LtdAMARDEEP DHILLON

In-app purchases

None

HWM PRISM

No in-app purchases

3 purchases

Simple Pdf

Subscriptions2
  • Unlock all features$3.991 Month
  • Unlock feature yearly$29.991 Year
One-time1
  • Remove ads$2.99

Questions

Is HWM PRISM free?
HWM PRISM is free to download, with no in-app purchases.
Is Simple Pdf free?
Simple Pdf is free to download, with in-app purchases available.
Do HWM PRISM or Simple Pdf have ads?
Simple Pdf shows ads; HWM PRISM does not.
Which is updated more often, HWM PRISM or Simple Pdf?
HWM PRISM ships an update every 8 months, and Simple Pdf every 3 months. Most recently, HWM PRISM was updated on October 19, 2026 and Simple Pdf on November 7, 2026.

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