Calibre 2 vs Minerva
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calibre 2
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Calibre 2 is a fast, private ebook manager and reader. LIBRARY • Add EPUB, MOBI, AZW3, PDF, HTML, Markdown and TXT files • Edit metadata: title, authors, series, tags, ratings, covers • Powerful search (title, author:, tag:, series:) and list or cover views • Organise books into libraries READER • Clean, distraction-free reading with adjustable fonts, themes and margins • Table of contents, bookmarks and reading progress • Built-in PDF viewer PRIVACY FIRST • Works entirely on your device — no account required • Optional free account to sync your library and reading position across devices • Share single books or whole libraries with specific people • No ads, no data selling Calibre 2 is the mobile companion of calibre.online.
Minerva
Track your reading progress, log pages or minutes, and discover what friends are reading. Connect with others, join book clubs, and get reading insights.
- Log reading progress (pages, minutes, percentage)
- Scan barcodes to add books
- Sync with KOReader for automatic logging
- View reading statistics and streaks
- Follow friends and see their reading activity
- Create and manage book clubs
- Import reading history from other platforms
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Minerva is a reading log you share with your friends. Log the days you read, rate and review the books you finish, and see what your friends thought of the same books. Log your reading - Log pages, minutes, or a percentage in a couple of taps, or just mark that you read today. - Scan a barcode to add a book. - If you read with KOReader on a Kobo or PocketBook, connect it once and Minerva logs your reading days for you. - Put the book you're reading on your home screen with a widget. - Turn on a daily reminder if you want one. Look back - See your year: how many books, pages, and days you read, and your longest streak. - Read a book again and it gets its own entry, with its own dates. - Open an author to see which of their books you've read and how you rated them. - On the 1st of each month, flip through a few cards about the month before, and share any of them as a picture. Friends - Follow people you know and see what they finish and what they think of it. - See which books you and a friend agree on, and which you don't. - Recommend a book to a friend. Book clubs - Start a club, choose books by vote or by turns, and compare ratings when everyone finishes. Import - Bring your history from Goodreads or StoryGraph. Buy a copy - Tap a book's title to find it on Bookshop.org, which supports independent bookstores. Minerva earns a commission. Only readers you let follow you can see your shelf. Nobody else can see your reading log.
Screenshots
Verdict
The clearest difference is device support: Calibre 2 at 3 against Minerva's 1. On price, ads, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Calibre 2 | Minerva |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 2 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Clarence Aubessard | Julia Chou |
In-app purchases
Calibre 2
No in-app purchases
Minerva
No in-app purchases









