Comparison

Rapidly vs Glyphi

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

Head to head
About

Rapidly

Enhance your reading speed and focus with this app's RSVP technique. It displays words sequentially, reducing eye movement to help you process articles, PDFs, and EPUBs faster. Track your progress and adjust your reading pace from 100 to over 1200 WPM.

Highlights
  • RSVP reading technique
  • Import from URL, clipboard, files
  • Adjustable reading speed (100-1200+ WPM)
  • Automatic chapter detection
  • Progress tracking
  • Dark mode
  • Resume reading
Features
Read full description

Read 3x faster with Rapidly. Rapidly uses RSVP (Rapid Serial Visual Presentation), a technique that shows words one at a time at a fixed point on screen. By reducing eye movement, it helps you stay focused and move through articles, PDFs, EPUBs, and text faster. HOW IT WORKS Instead of scanning line by line, Rapidly presents words sequentially so you can focus on the content and build faster reading speed over time. IMPORT FROM ANYWHERE - Paste text from your clipboard - Import articles from a URL - Open PDF, EPUB, and TXT files - Share directly from Safari, Chrome, and other apps FEATURES - Read from 100 to 1,200+ WPM - Gradually ramp up speed as you train - Automatic chapter detection for books and long reads - Progress tracking with time remaining - Reading history for every article, book, and document - Dark mode for comfortable reading - Resume exactly where you left off - No account needed, and your content stays on your device FREE VS UNLIMITED Free - Up to 800 WPM - Clipboard and URL imports - 5 imports per day Unlimited - 1,200+ WPM - Unlimited imports - PDF, EPUB, and TXT support Turn articles, books, and documents into faster, more focused reading sessions with Rapidly. Privacy Policy: https://rapidly.bagl.dev/privacy-policy Support: https://rapidly.bagl.dev/support

About

Glyphi

Features
Read full description

Glyphi is an RSVP speed reading app that helps you read books, PDF and EPUB documents, articles, web pages, and your own text with greater focus and efficiency. Most reading apps simply display text. Glyphi helps you read differently. By presenting words in a guided sequence, it reduces unnecessary eye movement, minimizes visual distractions, and helps you stay focused from the first word to the last. Instead of searching for your place, you can spend more time understanding and enjoying what you read. Whether you're reading books, ebooks, PDFs, research papers, textbooks, articles, or web content, Glyphi adapts to your pace and reading goals. Import your content, choose a comfortable reading speed, and switch between Single Word Mode and Flow Mode whenever you like. Whether you're studying, learning, working, or reading for pleasure, Glyphi helps you build a lasting reading habit while improving focus, concentration, and comprehension. PERFECT FOR • Books, ebooks, novels, and short stories. • PDF and EPUB reading. • Textbooks, lecture notes, and research papers. • Articles, blogs, newsletters, and web content. • Students, professionals, and researchers. • Building a daily reading habit. • Improving focus, concentration, comprehension, and reading speed. FOCUSED READING • Read in Single Word Mode with Glyphi's focal letter guidance. • Switch to Flow Mode to keep nearby words visible while the active word stays easy to follow. • Adjust your pace from a relaxed rhythm to high speed practice. • Benefit from punctuation aware pauses that adapt to your reading speed. • Reduce visual distractions and stay immersed in your reading. • Stay focused on the words instead of searching for the next line. • Build a smoother, more natural reading rhythm. • Tap the active word to open the system dictionary. • Jump between chapters and continue exactly where you left off. BRING YOUR OWN READING • Import PDF, EPUB, and TXT files. • Extract readable text from web articles and supported social posts. • Read web pages in a clean, distraction free reading environment. • Write or paste any text. • Send links and text directly from the iOS Share Sheet. • Organize your library, mark favorites, and quickly continue recent reading. TRAIN WITH PURPOSE Use Glyphi as your personal reading trainer with structured sessions designed to improve: • Speed. • Comprehension. • Focus. • Endurance. SEE REAL PROGRESS Track your reading with: • Words read, reading time, sessions, and average pace. • Daily activity, streaks, and a reading calendar. • Library progress by document type. • Training history and reading insights. PRIVATE, ON DEVICE INTELLIGENCE On compatible devices with Apple Intelligence enabled, Glyphi can generate summaries and key points for your reading. Everything is processed entirely on device to help protect your privacy. AI generated results may occasionally contain errors. MAKE IT YOURS Choose Paper, Light, Dark, or Charcoal. Customize colors, fonts, text size, weight, text tone, focal letter style, focus guide, haptics, and reading display. SYNC WITH ICLOUD Keep your library, reading position, settings, training history, and progress synchronized across your Apple devices through your private iCloud account. GLYPHI PREMIUM Glyphi is free to use with up to five saved readings, speeds up to 550 WPM, and Endurance training. Upgrade to Glyphi Premium to unlock unlimited imports, speeds up to 1,200 WPM, every training mode, reading insights, and all Premium features. Payment is charged to your Apple Account when your purchase is confirmed. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your App Store account settings. Privacy Policy: https://vahdetcaliskan.github.io/glyphi-legal/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Rapidly4 screens
Glyphi4 screens

Verdict

The call

The clearest difference is update cadence: Glyphi at every 4 days against Rapidly's fortnightly. Rapidly's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). 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. Rapidly sells 4 in-app purchases, starting at $2.99 per 7 days and Glyphi sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Rapidly ships an update fortnightly, Glyphi every 4 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 6 level
Rapidly versus Glyphi: the parameters behind the verdict, then further details
ParameterRapidlyGlyphi
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size43 MB11 MB
Age rating4+4+
DeveloperBAGL LIMITEDVahdet Caliskan

In-app purchases

4 purchases

Rapidly

Subscriptions3
  • Rapidly Pro3 Days trial$2.997 Days
  • Rapidly Pro7 Days trial$3.991 Month
  • Rapidly Pro7 Days trial$14.991 Year
One-time1
  • Rapidly Pro$24.99
2 purchases

Glyphi

Subscriptions2
  • Glyphi Monthly7 Days trial$4.991 Month
  • Glyphi Yearly$39.991 Year

Questions

Is Rapidly free?
Rapidly is free to download, with in-app purchases available.
Is Glyphi free?
Glyphi is free to download, with in-app purchases available.
Do Rapidly or Glyphi have ads?
Neither Rapidly nor Glyphi shows ads.
Which is updated more often, Rapidly or Glyphi?
Rapidly ships an update fortnightly, and Glyphi every 4 days. Most recently, Rapidly was updated on October 9, 2026 and Glyphi on October 7, 2026.

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