Whale Mark vs Zerosec Note
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Whale Mark
Track your reading progress for physical books with this e-bookmark application. Log your current page, add notes, and manage your library of paperbacks. Stay organized and never lose your place again.
- Track reading progress for paper books
- Log current page
- Add notes to books
- Manage book library
- E-bookmark functionality
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Whale Mark is an app for recording the reading progress of paper books. [Privacy Policy and Terms of Use] - Privacy Policy: https://medivhstudio.com/projects/whale-mark/privacy-policy.html - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ [Contact Us] Any comments or questions can be sent to medivhstudio@163.com.
Zerosec Note
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The 'Zerosec Note' app is a powerful tool designed to improve and enhance brain efficiency. It introduces an "extreme" method of note-taking to help users tackle challenges like slow thinking, difficulty gathering information, indecision, and procrastination. By "extreme," we mean you must complete one note in 1 minute and dedicate 10 minutes daily to write 10 notes. After several weeks of consistent practice, you'll notice significant improvements in your thinking abilities. The app draws inspiration from the bestseller "Zero Second Thinking" by Yuji Akaba, a former McKinsey consultant. In his book, Akaba shares how he used A4 paper to organize fragmented thoughts, focusing on 1-minute "mental exercises" to enhance thinking and boost productivity. The 1.0 release offers core features such as note-taking, countdown timers, viewing, and editing notes. Stay tuned for future updates with exciting new features!
Screenshots
Verdict
The clearest difference is in-app purchases: Zerosec Note at none against Whale Mark's 4. Zerosec Note also leads on update cadence (weekly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Whale Mark sells 3 in-app purchases, starting at $0.99 per month. Zerosec Note asks for nothing beyond the download.
Whale Mark ships an update every 4 months, Zerosec Note weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Whale Mark | Zerosec Note |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Every 4 months | Weekly โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Monetization | Freemium | โ |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 17.0 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ๆฑ ๆจ | ๅดๆญ ็ |
In-app purchases
Whale Mark
- Monthly Membership$0.991 Month
- Annual Membership$2.991 Year
- Lifetime Membership2 variants$3.99
Zerosec Note
No in-app purchases
Questions
Is Whale Mark free?
Is Zerosec Note free?
Do Whale Mark or Zerosec Note have ads?
Which is updated more often, Whale Mark or Zerosec Note?
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