Comparison

PDF Scanner Document Convert + vs Redd

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

Head to head
About

PDF Scanner Document Convert +

Transform your phone into a portable office for scanning, editing, signing, and reading PDF documents. Effortlessly manage your files with features like automatic edge detection, text annotation, and secure digital signatures. Enjoy a simple, smart, and secure way to handle all your document needs.

Highlights
  • Scan documents with automatic edge detection
  • Edit text, add highlights, and annotate PDFs
  • Create and apply digital signatures
  • Read PDFs with customizable view modes
  • Secure on-device document storage
Features
Read full description

Scan, edit, sign, and read PDFs — all in one easy-to-use app. Our PDF Scanner & Editor turns your phone into a powerful portable office tool, helping you manage all your documents effortlessly, anytime and anywhere. Scan with Ease Quickly scan documents, receipts, notes, or business cards using your phone’s camera. The app automatically detects edges and enhances clarity for professional-quality scans. Edit Instantly Need to make changes? Edit text, add highlights, insert shapes, or annotate your PDFs in seconds. No need for complicated software — everything you need is right at your fingertips. Sign Documents Sign contracts, forms, and agreements on the go. Create and save your digital signature to sign documents securely and conveniently without printing or rescanning. Read Comfortably Enjoy a smooth reading experience with customizable view modes. Zoom, search, and navigate through your PDFs easily — perfect for work, study, or personal use. Simple, Smart, and Secure All your documents are stored safely on your device, ensuring full privacy and security at all times. To unlock all premium features and enjoy unlimited access, please purchase a subscription. Privacy Policy: https://www.tap2pdf.com/privacy Terms of Use: https://www.tap2pdf.com/terms

About

Redd

This app enhances reading speed using a unique "Rolling Chunk" engine that presents text in fluid segments, unlike traditional word-by-word flashers. It supports web articles, PDFs, and ePubs, offering adjustable speeds and a smart library to save progress. All processing is done locally for enhanced privacy.

Highlights
  • Rolling Chunk engine for fluid text presentation
  • Supports web articles, PDFs, and ePubs
  • Adjustable reading speed (200-1000 WPM)
  • Smart library saves reading progress
  • 100% local text processing for privacy
  • Light and Dark themes
Features
Read full description

Experience the next generation of speed reading. Redd is an advanced RSVP (Rapid Serial Visual Presentation) reader designed to help you read articles, books, and documents up to 3x faster - without the eye strain of traditional speed readers. Unlike standard apps that flash one word at a time, Redd features a unique "Rolling Chunk" engine. This uses a smart sliding window to present text in natural, fluid segments, allowing your brain to process information faster while maintaining high comprehension. KEY FEATURES The Rolling Engine Experience a smoother, more natural flow than standard one-word flashers. Adjust chunk sizes to fit your cognitive pace. Multiple Content Sources Web Articles: Import articles for distraction-free reading or use our in-app browser Documents: Native support for PDF and ePub files Clipboard: Import text from documents and notes Full Control Variable Speed: Adjust from 200 to 1000 Words Per Minute (WPM) Scrubbing: Intuitive slider controls to rewind or skip ahead Themes: Beautiful Light and Dark modes for extended reading sessions Smart Library Redd automatically saves your progress in every file and article. Pick up exactly where you left off, every time. Privacy First All text processing happens 100% locally on your device. Your content stays on your device. Redd: Read faster. Retain more.

Screenshots

PDF Scanner Document Convert +4 screens
Redd4 screens

Verdict

The call

The clearest difference is review sentiment: Redd at 75% against PDF Scanner Document Convert +'s 50%. Redd also leads on monetization model (free vs free with in-app purchases) and update cadence (weekly vs every 2 weeks). PDF Scanner Document Convert +'s advantage is ratings volume (97 vs 4) and rating (4.5 vs 4.3). On price, ads 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. PDF Scanner Document Convert + sells 3 in-app purchases, starting at $4.99 per 7 days and Redd sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF Scanner Document Convert + holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: PDF Scanner Document Convert + has 97 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 50% of PDF Scanner Document Convert +'s written reviews are positive against 75% of Redd's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

PDF Scanner Document Convert + ships an update every 2 weeks, Redd weekly. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

Scorecard7 real differences · 3 level
PDF Scanner Document Convert + versus Redd: the parameters behind the verdict, then further details
ParameterPDF Scanner Document Convert +Redd
PriceFreeFree
Rating4.5 (97 ratings) — better4.3 (4 ratings)
Positive reviews50.0% of reviews75.0% of reviews — better
Number of ratings97 — better4
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.613.0 — better
Further details — not scored
Size132 MB35 MB
Age rating4+17+
DeveloperPremium Apps+Monosphere

Customer experience

PDF Scanner Document Convert +

All ratings97 ratings
Positive86.6%
Neutral3.1%
Negative10.3%
Written reviews8 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Redd

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

In-app purchases

3 purchases

PDF Scanner Document Convert +

Subscriptions2
  • Weekly: All Features3 Days trial$4.997 Days
  • Yearly Plan: All Features$19.991 Year
One-time1
  • Lifetime (One time) Purchase$49.99
3 purchases

Redd

One-time3
  • Small tip$2.99
  • Generous tip$4.99
  • Amazing support$9.99

Questions

Is PDF Scanner Document Convert + free?
PDF Scanner Document Convert + is free to download, with in-app purchases available.
Is Redd free?
Redd is free to download, with in-app purchases available.
Which has better reviews, PDF Scanner Document Convert + or Redd?
PDF Scanner Document Convert + is rated higher. PDF Scanner Document Convert + averages 4.5 out of 5 from 97 ratings, while Redd averages 4.3 from 4 ratings.
Do PDF Scanner Document Convert + or Redd have ads?
Neither PDF Scanner Document Convert + nor Redd shows ads.
Which is updated more often, PDF Scanner Document Convert + or Redd?
PDF Scanner Document Convert + ships an update every 2 weeks, and Redd weekly. Most recently, PDF Scanner Document Convert + was updated on September 22, 2026 and Redd on September 19, 2026.

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