Nerdie vs KRIZ
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Nerdie
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Nerdie is the social platform for book lovers, the place to track everything you read AND share it with people who love books as much as you do. FREE. Want to see what other readers really think about your favorite book? Curious whether a friend loved the ending as much as you did? Or maybe you just want a beautiful home for everything you've read, a rating for every book, and a want-to-read list so you're never stuck for your next great read. Nerdie does all of it, in one app. TRACK QUIETLY, OR SHARE OUT LOUD Some readers want a private diary of their reading life. Others want a community. Nerdie is built for both. Keep a review to yourself with "Only me," or post it and start a conversation. It's your call, book by book. RATE, REVIEW & REMEMBER β’ Rate every book on a five-star scale and write a review while it's fresh. β’ Log the same book more than once β made for the ones you reread every year. β’ Look back on your full reading history, your ratings, and everything you thought. β’ Mark a spoiler, or keep a review private β you're always in control. SOCIAL, THE BOOKISH WAY β’ Follow your friends and favorite readers and see what they're into right now. β’ Read their reviews of the books you love, like them, and comment to talk it out. β’ Discover your next read through people you actually trust, not an algorithm. β’ Every rating, review and comment is anchored to a book. No noise, just books. YOUR SHELF, YOUR WAY β’ Track your whole library, log every book you own and give it a rating. β’ Build custom lists for anything: want-to-read, all-time favorites, summer stack. β’ Customise your profile with your favorite bedside books and recent activity. β’ Set a yearly reading goal and watch your progress add up. THOUSANDS OF BOOKS & AUTHORS Search a huge catalog of books and authors. With covers, ratings, and reviews from the Nerdie community. Nerdie is built for book lovers who want to track their library and socialise around the thing they love most: reading. Give your reading life a home. Try Nerdie today, free. Privacy: https://nerdie.hooksonstudio.com/privacy Terms: https://nerdie.hooksonstudio.com/terms Support: https://nerdie.hooksonstudio.com/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 Nerdie's 1. On price, update cadence, ads and device support 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. Nerdie sells 1 in-app purchase, starting at $12.99 per year. KRIZ asks for nothing beyond the download.
Nerdie ships an update every 10 days, KRIZ fortnightly. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.
| Parameter | Nerdie | KRIZ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days β better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 15.1 | 15.1 |
| Further details β not scored | ||
| Size | 47 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | HALIL AHMET CENGELOGLU | Kateryna Dimitrashko |
In-app purchases
Nerdie
- Nerdie Premium Yearly3 Days trial$12.991 Year
KRIZ
No in-app purchases








