BookDay vs Noctua
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
BookDay
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BookDay was created with the aim of encouraging young adults to build reading habits. It helps readers who want to insert more literature into their daily lives, but suffer from a lack of organization. Thinking about helping them, the application offers several features, such as: - Bookshelves dedicated to books you want to read or have already been read; - Vast number of literary works; - Scheduled reminders; - Custom annotations; - Monitoring the reading process. BookDay is a free application, developed by Isabella Gomes, Sofia Gelli and Vivian Bacelar.
Noctua
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Noctua is a calm reading companion designed to help you focus, track your progress, and build a lasting reading habit. Instead of rushing through pages, Noctua encourages focused reading sessions. Start a session, read at your own pace, and finish when youβre done. Based on how much you read and how long you stay focused, Noctua estimates when youβll finish your book β using your real reading rhythm, not guesses. When youβre unsure what to read next, Noctua helps you decide with thoughtful guidance, turning choice into clarity instead of noise. You can track your reading progress, understand your habits over time, and stay present with tools designed to reduce distractions. Everything is built with simplicity, intention, and privacy in mind. Noctua isnβt about reading more books. Itβs about reading better.
Screenshots
Verdict
The clearest difference is iOS requirement: BookDay at 16.0 against Noctua's 18.6. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
BookDay ships an update weekly, Noctua every 5 days. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.
| Parameter | BookDay | Noctua |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 5 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 β better | 18.6 |
| Further details β not scored | ||
| Size | 4 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | FUNDACAO PADRE LEONEL FRANCA | Leonardo Melegari |
In-app purchases
BookDay
No in-app purchases
Noctua
No in-app purchases









