Whale Mark vs OnceOne
Price, ratings, monetisation and update history for both apps, side by side — 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.
OnceOne
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With OnceOne, you can manage your to-do tasks offline or on multiple devices through iCloud. We provide a powerful filter function to help you quickly locate the task list that meets specific conditions. ## Core Features - To-do management - Custom filter list - Tomato countdown focus - Activity records - Data statistics and chart display Privacy policy: https://yindongliang.com/docs/App/OnceOne-Privacy-Policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: OnceOne at weekly against Whale Mark's every 4 months. On price, ads, in-app purchases and device support 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. Whale Mark sells 3 in-app purchases, starting at $0.99 per month and OnceOne sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Whale Mark ships an update every 4 months, OnceOne weekly. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.
| Parameter | Whale Mark | OnceOne |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 柱 杨 | Dongliang Yin |
In-app purchases
Whale Mark
- Monthly Membership$0.991 Month
- Annual Membership$2.991 Year
- Lifetime Membership2 variants$3.99
OnceOne
- Pro(Monthly)$0.991 Month
- Pro(Annual)$9.991 Year
- Pro(Lifetime)$24.99
