CheckOne vs Bookus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CheckOne
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CheckOne shows checklist items one at a time so you can confirm everything without missing anything. Create checklists for things you want to confirm in order, such as before going out, travel prep, leaving a hotel, before a meeting, gym items, morning routines, or bedtime routines. Instead of looking at a long checklist all at once, CheckOne shows the current item clearly and lets you move forward as you check each one. It helps you focus on the next thing to confirm. CheckOne also supports Apple Watch. You can view checklists, start a run, check items, and keep the run state in sync with iPhone. Templates are included so you can start quickly, and you can also create your own checklists from scratch. Features - Create and edit checklists - Create from templates - Run a checklist one item at a time - Move items later and optionally save the new order - Choose checklist colors - Sync run state with Apple Watch - Haptic feedback while checking items - Double Tap support on Apple Watch CheckOne Plus CheckOne Plus unlocks every feature with one purchase, including creating multiple checklists, choosing any color, and moving items later. Note: Double Tap is available on supported Apple Watch devices with watchOS 11 or later. Terms of Use: https://apps.mishimadesign.com/checkone/legal.html#terms-en
Bookus
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Bookus — Your records, photos, notes, diary… and one book. Gather travel logs, family photos, and quick notes into one book you can flip through. Import from gallery and document scan, read in immersive mode, and protect sensitive books with a PIN. ■ For you if you want to • Keep a diary as a book, not just a photo album • Organize records, photos, and notes in one place • Lock books with a PIN only you know ■ Features • Batch import from gallery • Document scan + on-device OCR (Korean, Japanese, English, and more) • Block-based photo and text layout editor • Page-flip reading mode • Text-to-speech for hidden text • Export and share as PDF or slideshow video • Chapters for sections • Optional PIN lock with on-device encryption for text/layout • ZIP backup and restore ■ Privacy-first Book content, photos, and PIN stay on your device by default. No account required. ■ Bookus Pro / Pro Plus (auto-renewable subscriptions) • Pro: Remove in-app ads, watermark-free exports, higher scanner limits • Pro Plus: Everything in Pro, plus batch OCR and advanced spread split Manage or cancel subscriptions in App Store account settings. ■ Legal Privacy Policy: https://zettycloud.mycafe24.com/bookus/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ■ Ads Free users may see Google AdMob ads. Pro and Pro Plus remove in-app ads. Contact: zettyfactory@gmail.com
Screenshots
Verdict
The clearest difference is iOS requirement: Bookus at 15.5 against CheckOne's 17.0. 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. CheckOne sells 1 one-off in-app purchase and Bookus sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | CheckOne | Bookus |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Daily |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 14 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Mishima Design | Whanyun Choi |
In-app purchases
CheckOne
- CheckOne Plus$9.99
Bookus
- 부커스 구독$1.991 Month
- 부커스 구독$2.991 Month
- 부커스 구독$19.991 Year
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- 부커스 구독$29.991 Year









