Comparison

ReadPace vs Ghostreader AI

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

Head to head
About

ReadPace

This app measures reading speed and comprehension by timing sessions, scanning pages, and asking questions based on the text. It provides detailed insights into reading habits, helping users find their optimal pace for retention.

Highlights
  • Timed reading sessions
  • Page scanning for WPM calculation
  • Comprehension testing
  • Personalized speed-retention analysis
  • Progress tracking and goal setting
  • Book-specific reading insights
Features
Read full description

Most reading apps count pages. ReadPace counts whether you actually understood them. Start a session, read the way you normally read, then scan the pages you finished. ReadPace turns that into a real words-per-minute number — not an estimate, not a guess. Then it asks you six questions about what you just read, written from those exact pages. Speed means nothing if none of it stuck. ReadPace measures both. TIME IT. SCAN IT. KNOW IT. Hit start, read, hit "Finish & scan." Your session becomes a precise WPM number, logged against the book you're reading. No manual page counts, no stopwatch math. READ IT. THEN PROVE IT. Every session can end with a comprehension test built from the pages you just covered. Real questions about the actual ideas — not trivia. Not sure? Tap "No idea." Honest answers make your data honest. GET SCORED, THEN GET BETTER. See your comprehension percentage, your WPM, and how many you got right — side by side. Then review every question: what you answered, what was correct, and why. Misses get explained, so the test teaches you something too. FIND THE SPEED WHERE YOU REMEMBER MOST. This is the one no other reading app can tell you. ReadPace groups your tested sessions into speed bands and averages your recall in each, revealing your personal sweet spot — the pace where you're fast and you retain it. It also shows you where recall starts to fall off, so you know exactly when you're reading too fast to learn anything. WATCH THE LINE CLIMB. Your WPM trend over 7 days, 30 days, or all time, with your goal line drawn right across it. Weekly session goals, personal bests, and a running average that proves the last three months weren't your imagination. INSIGHTS THAT CHANGE HOW YOU READ. • Your most productive time of day — morning, afternoon, or evening • Which categories you read fastest, and which you remember best • Week-over-week change, personal best, total sessions at a glance EVERY BOOK ON YOUR SHELF, MEASURED. Your library tracks each title separately: lowest, average, and highest speed, average comprehension across every tested session, a speed curve across the whole book, and a full session log with words read, time spent, WPM, and recall score. WHO IT'S FOR Students who need it to stick. Professionals reading to stay sharp. Anyone with a shelf of non-fiction and a nagging suspicion they're not retaining much of it. And anyone who just wants to read faster — with proof they haven't sacrificed understanding to get there. Stop guessing how fast you read. Start knowing what you keep. Terms of use: https://readpace.org/terms Privacy policy: https://readpace.org/privacy

About

Ghostreader AI

Features
Read full description

Ghostreader is the e-reader that reads with you. Bring books, papers, and articles into one private reading workspace, then ask questions, follow ideas, and return every answer to its source. READ WITH GHOST • Ask questions grounded in the text in front of you • Highlight a passage to explain it, define it, or ask a follow-up • Chat with one book, a selected set, or your whole library • Check cited source passages instead of taking an answer on faith • Listen with natural read-aloud while the page stays visible KEEP A PRIVATE READING MEMORY • Turn saved highlights, notes, and page-linked questions into inspectable ideas • See meaningful connections across books without turning reading progress into a public profile • Search what you kept and review a human-readable activity history BUILD IN BOOK STUDIO • Create cited comparisons, evidence tables, literature reviews, outlines, maps, briefs, and reading plans • Let Ghostreader find relevant passages automatically, or pin the exact passages you want • Revise artifacts without losing their source snapshot or version history READ WITH FRIENDS • Share one sourced page, note, or question with people you choose • Catch up through a finite Today table instead of an endless ranked feed • Read together in invite-only rooms with quiet, qualitative signals • Reply by branching from a passage in your own copy Friends is optional. Your library, private highlights, reading position, Reading Memory, and Studio work are not shared by default. You confirm the audience for every shared page. BRING YOUR OWN READING Import EPUB books, PDFs, Markdown files, research papers, and web articles. Switch supported originals between paged and continuous reading, and keep downloaded EPUB or PDF originals available for offline reading and search. AI explanations, sync, and newly generated work require a connection. Ghostreader includes a free Normie Reader plan with up to three new reading materials per month. Avid Reader is $6.99 per month and removes the monthly import limit. AI reading features are included on both plans. An account is required. Your library is private and is not used to train public AI models. Privacy Policy: https://ghostreader.ai/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ReadPace4 screens
Ghostreader AI4 screens

Verdict

The call

The clearest difference is in-app purchases: ReadPace at none against Ghostreader AI's 1. ReadPace also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads 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. Ghostreader AI sells 1 in-app purchase, starting at $6.99 per month. ReadPace asks for nothing beyond the download.

UpkeepUpdate frequency

ReadPace ships an update every 9 days, Ghostreader AI every 10 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
ReadPace versus Ghostreader AI: the parameters behind the verdict, then further details
ParameterReadPaceGhostreader AI
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 9 days — betterEvery 10 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size100 MB9 MB
Age rating4+4+
DeveloperDominik Meseklauren brendle

In-app purchases

None

ReadPace

No in-app purchases

1 purchases

Ghostreader AI

Subscriptions1
  • Avid Reader$6.991 Month

Questions

Is ReadPace free?
ReadPace is free to download, with no in-app purchases.
Is Ghostreader AI free?
Ghostreader AI is free to download, with in-app purchases available.
Do ReadPace or Ghostreader AI have ads?
Neither ReadPace nor Ghostreader AI shows ads.
Which is updated more often, ReadPace or Ghostreader AI?
ReadPace ships an update every 9 days, and Ghostreader AI every 10 days. Most recently, ReadPace was updated on October 20, 2026 and Ghostreader AI on October 24, 2026.

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