Readpace vs Parallèle Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Timed reading sessions
- Page scanning for WPM calculation
- Comprehension testing
- Personalized speed-retention analysis
- Progress tracking and goal setting
- Book-specific reading insights
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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 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 (EULA): https://readpace.org/terms Privacy Policy: https://readpace.org/privacy Premium is an auto-renewing subscription (monthly or yearly). Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel in your Apple Account settings.
Parallèle Reader
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Read the books you love - and, whenever you like, read them in two languages, side by side. Parallèle Reader is a calm, aesthetic everyday reader for your books. It also has a language companion built in: open a book in its original language and a clean translation appears right beside it - there when you need it, out of the way when you don't. FEATURES - Read your own EPUB, PDF, and text files (five timeless classics included free, in their original languages) - Side-by-side bilingual reading in split screen — original and translation, page by page - Translate offline with Apple's on-device engine — no internet needed once your languages are downloaded, or connect your own DeepL key - Hide the translation and reveal it with a tap to test yourself - Long-press any word or passage to look it up, highlight it, add a note, or save it - A personal vocabulary that builds as you read — export it as a TSV file - Highlight in five colors, add notes, and bookmark pages — all organized by book - Reading stats with a heatmap that turns your daily progress into a streak — minutes read, books finished, and more - iCloud sync keeps your reading position, highlights, and vocabulary together across iPhone and iPad - Collections and smart shelves for Favorites and Finished, plus search by title, author, or language - Four reading themes (Warm Paper, Sepia, Light, Dark) - Classic serif fonts, adjustable size, spacing, and margins, and a focus mode WHO IT'S FOR You just love reading — a distraction-free reader for your own library, with stats that make the habit stick. Language learners — read authentic books instead of exercises; reading in context teaches what flashcards can't. Heritage and bilingual readers — move freely between both your languages on every page. Anyone after a book that was never translated for sale — read the original with a translation alongside. HOW IT WORKS Open one of the included classics, or import your own EPUB, PDF, or text file. In split screen, the original and a clean translation appear side by side, page by page — on your device with Apple Translate, or through your own DeepL key. Long-press a word or passage to look it up, highlight it, add a note, or save it to your vocabulary. Prefer to test yourself? Hide the translation and reveal it with a tap. PRICING Try Parallèle Reader free for 7 days. After the trial, a single one-time purchase unlocks the full app. PRIVACY Your reading stays private. iCloud sync is optional and connects only your own devices through your Apple ID — your reading habits never reach our servers. Translate entirely on-device with Apple Translate, and if you add a DeepL key, it's stored securely on your device. Whether you're rereading an old favorite or finally reading that novel in its original language, Parallèle Reader makes reading feel good — and quietly makes you better at it.
Screenshots
Verdict
The clearest difference is in-app purchases: Readpace at none against Parallèle Reader's 1. Readpace also leads on iOS requirement (15.0 vs 18.6). Parallèle Reader's advantage is update cadence (every 3 months vs every 10 months). On price, 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
Both are free to download. Parallèle Reader sells 1 one-off in-app purchase. Readpace asks for nothing beyond the download.
Readpace ships an update every 10 months, Parallèle Reader every 3 months. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.
| Parameter | Readpace | Parallèle Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 101 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Dominik Mesek | Temirlan Abdyldaev |
In-app purchases
Readpace
No in-app purchases
Parallèle Reader
- Unlock Parallèle Reader$9.99









