Marcus vs KRIZ
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Marcus
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Reading, without the friction. Marcus is the reading app made for restless minds. A calm tracker glides along the line to keep your eyes exactly where you are, so your attention stops slipping off the page. Import any EPUB or PDF and just read. WHY IT STICKS - Stay on the line - a gentle tracker keeps your place, at your pace - Stuck? Just ask - explain, summarize or recap without leaving the page - Every book, one tap away - import EPUB & PDF and pick up where you left off - Reading that rewards you - daily goals, streaks and achievements - A shelf that fills as you read - finished books become spines on your bookcase - Your thoughts, in one place - a notebook and a glossary of words you've learned - Share the lines you love - turn any quote into a beautiful card MADE FOR HOW YOUR BRAIN READS ADHD-first and dyslexia-friendly: the OpenDyslexic font, calm themes, read-along audio, and short daily goals that make five minutes count. No guilt, no noise - just no zero days. MARCUS PRO Unlimited explanations, summaries and recaps, all themes and the OpenDyslexic font, and advanced tracker styles. Read more. Struggle less. Start your first page today. Terms of Use: https://marcus.vuvee.me/terms Privacy Policy: https://marcus.vuvee.me/privacy
KRIZ
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KRIZ is a reading diary, not another book catalogue. A catalogue answers βwhat have I readβ. A diary answers βwhat happened to me while I was reading itβ. KRIZ is about the second one. Three sections instead of lists Past, present, future. A book lives through them in turn, as it should. A diary you assemble yourself Quotes, thoughts, questions, observations, characters, things to explore after the book. Switch on only the blocks you need β the rest stays out of the way. Nothing is required: marking a book as finished is enough. Search your own words Remember the quote but not the book? A few words will find it. A book is added in a second By title, by author, or by scanning the barcode on the cover. What to read next The randomiser picks from the books you saved, from your shelf, or offers something new β from a selection of two thousand books with covers, descriptions and readersβ ratings. Cards for stories Eight ready-made looks. You tick what to show β cover, quote, rating, dates β and the app composes the card. Month summaries How much you read, what you liked most, which book turned out the longest. A fortune for the day One short line β a reason to open the diary even on a busy day. Import from Goodreads and StoryGraph Ratings, reviews, dates and shelves come across with the books. Free forever The whole diary: any number of books, entries and shelves. Search through your own words, barcode scanner, sync between devices, import, light and dark themes, story cards. What came free stays free. The KRIZ subscription adds Quote scanner: photograph a page, the text is recognised and you can fix it before saving. Voice notes. Photos for a book. Ambient sounds: rain, a library, a cafΓ©. Every card template and extra appearances. The first seven days are free. Your entries are yours The diary lives on your phone and works offline. An account is only for syncing between devices β and it is optional. Backups are saved as an ordinary file. Ukrainian, Russian, English, Greek.
Screenshots
Verdict
The clearest difference is in-app purchases: KRIZ at none against Marcus's 2. KRIZ also leads on update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Marcus sells 2 in-app purchases, starting at $6.99 per month. KRIZ asks for nothing beyond the download.
Marcus ships an update every 2 months, KRIZ fortnightly. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.
| Parameter | Marcus | KRIZ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Fortnightly β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 16.4 | 15.1 β better |
| Further details β not scored | ||
| Size | 65 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Vukasin Rancic | Kateryna Dimitrashko |
In-app purchases
Marcus
- Marcus Pro Monthly$6.991 Month
- Marcus Pro Annual$49.991 Year
KRIZ
No in-app purchases









