Comparison

PDF Projector vs Wordkeep

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

Head to head
About

PDF Projector

Turn your device into a presentation projector. Display PDF slideshows full-screen on external monitors and control navigation from your iPhone or iPad. An Apple Watch can even act as a remote.

Highlights
  • Projects PDFs to external screens
  • Use iPhone/iPad for navigation
  • Apple Watch remote control
  • Thumbnail and page preview
  • Supports iCloud documents
  • Share PDFs from other apps
Features
Read full description

Projects PDF slideshows onto an external screen. If you have an Apple Watch, you can also use it as a remote control. This app is useful if you write presentations using LaTeX Beamer, or LibreOffice Impress, or some other application that exports to PDF. Simply open your PDF in the app and connect an external display (e.g., via VGA, HDMI, USB-C, or AirPlay). Your slides will be displayed full-screen on the external display, while the app provides additional navigation controls on your iPad or iPhone. You can navigate on your iPad or iPhone by tapping and swiping, or using the buttons on the toolbar, or scrolling through the thumbnails, or using an external keyboard. When in landscape mode, you will also see a preview of the next page (which you can turn on/off using the button on the upper toolbar). You can browse and open any of your iCloud documents, or you can share PDFs from your favourite app to open in PDF Projector. WATCH REMOTE: If you have an Apple Watch, you can use this as a remote control. Simply open a PDF document in the iPhone app and connect it to an external display, and then start the Watch app to use the remote control. If you talk a lot between slides, try adding the "Next Page" complication to your clock face (requires watchOS 7). This will let you step through the slides without having to keep reopening the app. You can also configure Settings / General / Wake Screen (on any watchOS version) to keep the app on screen for longer while you present your talk.

About

Wordkeep

Convert audio and video files to text using powerful on-device AI. This app ensures maximum privacy with offline processing and no data leaving your device. It supports numerous languages and offers a clean interface with dark mode.

Highlights
  • On-device AI transcription
  • Works completely offline
  • Maximum privacy
  • Full transcription history
  • Supports numerous languages
  • Clean interface with dark mode
Features
Read full description

Wordkeep turns voice memos, recordings and videos into accurate text right on your iPhone. Nothing is ever uploaded. YOUR WORDS STAY YOURS Speech recognition runs 100% on your device. No cloud, no account, no servers. After a one-time download of the speech model, Wordkeep works fully offline: on a plane, in a lecture hall, anywhere. WHAT YOU CAN DO - Record or import audio and video from Files and Photos - Get accurate text with word-level timestamps, then edit it - Burn subtitles into your videos in several styles - Export SRT subtitle files or share plain text - Transcribe many files at once with batch processing - See who said what with optional speaker detection - Search your full transcription history SUPPORTED LANGUAGES Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Latvian, Lithuanian, Maltese, Polish, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Ukrainian GREAT FOR - Voice memos and recordings - Lectures, meetings and interviews - Subtitles and captions for social videos - Journalists, podcasters, students, and anyone who'd rather read than listen Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PDF Projector4 screens
Wordkeep4 screens

Verdict

The call

The clearest difference is price: Wordkeep at Free against PDF Projector's $0.99. Wordkeep also leads on update cadence (every 2 weeks vs every 2 months) and review sentiment (100% vs 83%). PDF Projector's advantage is in-app purchases (none vs 3) and device support (4 vs 2). On ads 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

Wordkeep is free to download; PDF Projector costs $0.99 up front. Wordkeep sells 3 in-app purchases, starting at $2.99 per month. PDF Projector asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Wordkeep holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 3 and 10 respectively. Written reviews point the same way: 83% of PDF Projector's written reviews are positive against 100% of Wordkeep's.

UpkeepUpdate frequency

PDF Projector ships an update every 2 months, Wordkeep every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard9 real differences · 1 level
PDF Projector versus Wordkeep: the parameters behind the verdict, then further details
ParameterPDF ProjectorWordkeep
Price$0.99Free — better
Rating4.7 (3 ratings)4.9 (10 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings310 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS12.0 — better18.0
Further details — not scored
Size2 MB31 MB
Age rating4+4+
DeveloperBenjamin BurtonNikolai Rodionov

Customer experience

PDF Projector

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

Wordkeep

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PDF Projector

No in-app purchases

3 purchases

Wordkeep

Subscriptions2
  • Monthly$2.991 Month
  • Yearly Premium7 Days trial$14.991 Year
One-time1
  • Lifetime Premium$24.99

Questions

Is PDF Projector free?
PDF Projector costs $0.99, with no in-app purchases.
Is Wordkeep free?
Wordkeep is free to download, with in-app purchases available.
Which has better reviews, PDF Projector or Wordkeep?
Wordkeep is rated higher. PDF Projector averages 4.7 out of 5 from 3 ratings, while Wordkeep averages 4.9 from 10 ratings.
Do PDF Projector or Wordkeep have ads?
Neither PDF Projector nor Wordkeep shows ads.
Which is updated more often, PDF Projector or Wordkeep?
PDF Projector ships an update every 2 months, and Wordkeep every 2 weeks. Most recently, PDF Projector was updated on October 25, 2026 and Wordkeep on October 24, 2026.

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