DayBook's vs KTrunk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DayBook's
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Still waters run deep, huh? Remember those traditional diaries? Just you, a pen and a pad of paper to put whatever crosses your mind on… Whatever is troubling you, whatever (and whoever? ;)) you look forward to. What about your your dreams? Any thoughts you have difficulty telling even your best buds? If you are one of those who like to keep it simple and have no intention whatsoever of publishing their most private stuff on social media, you’re in luck, because that's exactly what DayBook‘s is: just a traditional diary fully adapted to the current times. Simple and 100% private, with DayBook‘s, and its elegant and uncomplicated design you'll love writing anything that happens to you in your everyday life, and in a surprisingly simple way. Main Features • Add as many DayBooks as you want. There are no limits. • Add Books inside Books. • Add images to your entries. • Differents Colors for diaries. • Dark Mode Support. • Receive notifications every year for your entries. • Sync all your DayBook‘s, Day‘s and DeepDay‘s with iCloud on all your compatible devices. • Trackpad/Mouse Support. • Keyboard shortcuts for easy use with external keyboards. Keyboard Shortcuts - General: • ⌘ + X -> Close the current window - DayBook‘s View: • ⌘ + N -> Create a new DayBook • ⌘ + , -> Open settings • ⌘ + Right Arrow -> Next Book • ⌘ + Left Arrow -> Back to First DayBook - MyDay‘s View: • ⌘ + N -> Create a new Day - DeppDay‘s View: • ⌘ + N -> Create a new DeepDay
KTrunk
This note-taking app allows you to save ideas with attached files and photos. You can create links between notes and files, and synchronize your data across devices. An optional in-app purchase enables note encryption for enhanced privacy.
- Save ideas with files and photos
- Link notes to other notes and files
- Synchronize across devices via iCloud
- Notes saved in HTML format
- Optional note encryption
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Knowledge Trunk - or short KTrunk - is a note taking App. Use KTrunk to save all your ideas augmented with related files and photos. You can establish links from one note to any other note or file in KTrunk. The notes are saved in html-format and can be synchronized across your devices using iCloud. In-App-Purchases: * Privacy Allows to encrypt/decrypt your notes.
Screenshots
Verdict
The clearest difference is price: KTrunk at Free against DayBook's's $2.99. DayBook's's advantage is in-app purchases (none vs 3) and iOS requirement (16.0 vs 18.0). On update cadence, ads 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
KTrunk is free to download; DayBook's costs $2.99 up front. KTrunk sells 3 one-off in-app purchases. DayBook's asks for nothing beyond the download.
DayBook's ships an update every 6 weeks, KTrunk monthly. The most recent releases landed on October 27, 2026 and October 14, 2026 respectively.
| Parameter | DayBook's | KTrunk |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | Oskar Pacheco | Clemens Schuetzdeller |
In-app purchases
DayBook's
No in-app purchases
KTrunk
- Operating Convenience$0.99
- Privacy$1.99
- #Tag-Proposals$1.99









