Comparison

PDFDarkMode vs PolyInvert

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

Head to head
About

PDFDarkMode

Easily convert PDFs to a comfortable dark mode with custom text and background colors. Reduce eye strain while reading or studying long documents. Save and revisit your personalized PDFs in a private library.

Highlights
  • Upload PDFs from device
  • Customize text and background colors
  • Preview dark mode changes
  • Download converted PDFs
  • Personal PDF library
  • Private by design
Features
Read full description

PDFDarkMode makes your PDFs easier on the eyes, day or night. Upload any PDF, choose your own text and background colors, preview your changes, and download your converted document directly within the app. Whether you’re studying, reading long-form writing, or reviewing technical documents, PDFDarkMode helps reduce eye strain and make your PDFs visually comfortable and fully personalized. Features • Upload any PDF from Files or your device • Customize text color and background color • Preview your converted PDF in full dark mode • Download it directly • Save and revisit all converted PDFs in your personal library • One-time in-app purchase to download a dark mode PDF for $2.99 • Upgrade to PDFDarkMode Pro for $9.99 to unlock unlimited dark mode PDF downloads Private by Design No logins. No analytics. No tracking. Your PDFs stay private.

About

PolyInvert

Features
Read full description

Transform PDF documents and images into inverted color versions with just one tap. PolyInvert is the perfect tool for converting Polycam floor plans, architectural drawings, documents, and images for viewing in darkmode. PERFECT FOR POLYCAM USERS Export your Polycam floor plans directly into PolyInvert and instantly invert them. Works seamlessly with PDF, PNG, and SVG exports from Polycam. KEY FEATURES • Smart Color Inversion - Advanced algorithms optimized for each file type • Multi-Format Support - PDF, PNG, SVG, and ZIP archives • Batch Processing - Import and invert multiple files at once • One-Tap Export - Share via Messages, Mail, Files, or any app • ZIP Support - Automatically extracts and processes archive contents • Privacy First - All processing happens locally on your device • No File Size Limits - Process documents of any size • Universal App - Works on iPhone, iPad, and Mac HOW IT WORKS 1. Import your files from iCloud Drive, Files app, or directly from Polycam via the share sheet. 2. Tap "Invert All" to process all files, or invert individually 3. Export inverted files via iOS Share Sheet to save or share anywhere PRIVACY & SECURITY Your files stay private. PolyInvert processes everything locally on your device. We never upload, store, or access the content of your files. What you invert stays on your device. USE CASES • Invert Polycam floor plans to dark mode for Blackout Lighting Console • Create dark mode versions of documents • Improve contrast on architectural drawings • Invert scanned documents for easier reading • Prepare images for presentations • Process technical diagrams and schematics FREE WITH OPTIONAL AD REMOVAL PolyInvert is completely free to use with ads. Remove all ads permanently with a one-time in-app purchase that syncs across all your devices. TECHNICAL DETAILS • Supports PDF, PNG, and SVG files • Handles multi-page PDFs with ease • ZIP archive auto-extraction • Maintains original file quality • Preserves document structure and formatting • Fast processing with optimized algorithms MADE BY AMOGAFFER PolyInvert is developed by AMOGaffer with a focus on simplicity, privacy, and reliability. We're committed to creating tools that just work. REQUIREMENTS • iOS 17.0 or later • iPadOS 17.0 or later • macOS 14.0 or later (Apple Silicon) Need help? Contact us at contact@amogaffer.com Privacy Policy: https://amogaffer.com/privacy/polyinvert/

Screenshots

PDFDarkMode4 screens
PolyInvert4 screens

Verdict

The call

The clearest difference is ads: PDFDarkMode at none against PolyInvert's shown. PDFDarkMode also leads on iOS requirement (15.0 vs 17.0). PolyInvert's advantage is update cadence (daily vs every 4 days). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PDFDarkMode sells 5 one-off in-app purchases and PolyInvert sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDFDarkMode ships an update every 4 days, PolyInvert daily. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
PDFDarkMode versus PolyInvert: the parameters behind the verdict, then further details
ParameterPDFDarkModePolyInvert
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 daysDaily — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size4 MB8 MB
Age rating4+4+
DeveloperWildcatter LLCADAM MICHAEL OGDEN

In-app purchases

5 purchases

PDFDarkMode

One-time5
  • Download PDF (up to 100 pages)$0.99
  • Dark Mode PDF Download2 variants$2.99
  • Download PDF (up to 500 pages)$4.99
Show 2 more
  • PDFDarkMode Pro$9.99
  • Download PDF (500+ pages)$9.99
1 purchases

PolyInvert

One-time1
  • Remove Ads$2.99

Questions

Is PDFDarkMode free?
PDFDarkMode is free to download, with in-app purchases available.
Is PolyInvert free?
PolyInvert is free to download, with in-app purchases available.
Do PDFDarkMode or PolyInvert have ads?
PolyInvert shows ads; PDFDarkMode does not.
Which is updated more often, PDFDarkMode or PolyInvert?
PDFDarkMode ships an update every 4 days, and PolyInvert daily. Most recently, PDFDarkMode was updated on September 28, 2026 and PolyInvert on October 7, 2026.

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