Comparison

PrismQR vs PDF Compact

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

Head to head
About

PrismQR

Features
Read full description

PrismQR is an all-in-one app for reading and creating QR codes β€” quickly and safely. -- Great for -- - Anyone who wants to scan QR codes in an instant - Checking QR codes sent by friends as photos or screenshots - Creating original QR codes for menus, business cards, and more - Verifying a link is safe before opening an unfamiliar QR code -- Key Features -- [Fast QR Scanning] Instantly read QR codes by simply pointing your camera. Supports all types of QR codes including URLs, text, and WiFi information. Zoom and flashlight features enable comfortable scanning even in low light. [Scan from Images] Read QR codes from screenshots and images saved in your camera roll. Quickly access QR codes sent by friends. [Safety Check] Every scanned link is automatically checked for HTTPS encryption and deceptive lookalike domains (punycode tricks). Suspicious links are flagged with a warning before you open them, helping protect you from phishing and "quishing" (QR code phishing) scams. [Stylish QR Code Creation] Create original QR codes by simply entering text or URLs. - Color Customization: Design QR codes in your favorite colors - Gradients: Create unique QR codes with beautiful gradients - Logo Addition: Place a logo or image in the center for brand appeal [History Management] Both scanned and created QR codes are automatically saved to history. Access and reuse them anytime. [Appearance] Choose Light, Dark, or match your device's system setting. [Multi-Language Support] Supports English and Japanese, matching your device language automatically (changeable anytime in Settings). -- Highlights -- - No account or sign-up required - Scan history stays on your device only β€” nothing is sent to external servers - Free to download and use (includes ads; a one-time in-app purchase removes them) Make QR codes more convenient and more secure. Try PrismQR today.

About

PDF Compact

Features
Read full description

PDF Compact is the fast and easy solution to reduce the size of large PDF files directly on your iPhone or iPad – and now it also converts images into PDFs that you can compress instantly. Whether for email, cloud uploads, government portals, or archiving: PDF Compact reliably reduces the file size of your documents with just a few taps. New Features Import images & convert them to PDF Select a photo from your gallery – PDF Compact instantly creates a PDF that you can compress right away. ** Features ** - Select & view PDFs or images Open PDFs directly from Files, iCloud, or other apps – or import an image from your photo library. - Efficient PDF compression Choose between different compression levels such as Small or Medium – optimized for sending or storing. - Preview before saving Check the result immediately before saving or sharing it. - Smart file naming Compressed PDFs are automatically saved with a suffix like β€œ_small” or β€œ_medium”. - Share & send Share your compressed PDFs via email, messenger apps, or AirDrop. - Privacy‑friendly Your documents are used only for processing – no permanent storage without your consent. Perfect for Emails with size limits Uploads to portals & authorities School, work & office Quick sharing on the go PDF Compact makes large PDFs small – now even from images. Simple, fast, and reliable.

Screenshots

PrismQR4 screens
PDF Compact4 screens

Verdict

The call

The clearest difference is ads: PDF Compact at none against PrismQR's shown. PrismQR's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PrismQR ships an update every 6 months, PDF Compact every 5 months. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences Β· 4 level
PrismQR versus PDF Compact: the parameters behind the verdict, then further details
ParameterPrismQRPDF Compact
PriceFreeFree
Update frequencyEvery 6 monthsEvery 5 months β€” better
AdsYesNo β€” better
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad β€” better
Requires iOS18.0 β€” better26.0
Further details β€” not scored
Size5 MB22 MB
Age rating4+4+
DeveloperBYNETGerhard Lentschik

In-app purchases

None

PrismQR

No in-app purchases

None

PDF Compact

No in-app purchases

Questions

Is PrismQR free?
PrismQR is free to download, with no in-app purchases.
Is PDF Compact free?
PDF Compact is free to download, with no in-app purchases.
Do PrismQR or PDF Compact have ads?
PrismQR shows ads; PDF Compact does not.
Which is updated more often, PrismQR or PDF Compact?
PrismQR ships an update every 6 months, and PDF Compact every 5 months. Most recently, PrismQR was updated on October 28, 2026 and PDF Compact on October 31, 2026.

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