KTrunk vs Ahti
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Ahti
This writing application provides a peaceful, uncluttered interface for planning, drafting, and finishing long-form projects like novels or screenplays. It offers tools for structuring your work, writing without distraction, and exporting your finished manuscript in various formats.
- Binder for chapters and scenes
- Corkboard for scene flash cards
- Outliner for structure overview
- Distraction-free writing modes
- Word goal and daily pace tracking
- Export to ePub, Word, PDF
- Customizable themes and styles
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Ahti is somewhere quiet to finish writing your long-form book. It gives you what you need to plan, draft, and finish a novel, screenplay, or thesis. It's a peaceful, uncluttered interface that stays out of the way so you can focus on writing. PLAN THE SHAPE OF YOUR BOOK Keep your whole story in one place. The binder holds your chapters and scenes. The corkboard turns each scene into a rearrangeable flash card for structuring and quick reference. The outliner gives you a bird's-eye view of your structure and all the data that comes with it. WRITE WITHOUT DISTRACTION Write in a clean editor, or fold a chapters and scenes into one long manuscript so you can write straight through. Additionally, Composition Mode keeps it simple when all you want is the ink and the page. KEEP TRACK, AND FINISH Set a word goal and a daily pace to keep yourself moving. Take a snapshot before a big revision so you can always go back to an earlier draft. When the book is done, compile it to ePub, Word, PDF, and more, with a table of contents, chapter numbering, and your own title page. LOOK THE PART Choose between light and dark mode, or import your own custom themes so your workspace looks and feels like your story. The style editor gives you complete control over every color, font, and formatting of Ahti. YOUR WORK STAYS YOURS An Ahti project is an ordinary folder of plain text files on your own disk. You can open it in Finder or any other writing app, and nothing is trapped in a proprietary format. Turn on iCloud and your books follow you from Mac to iPad to iPhone. There are no sign ins or accounts to create, and unless you choose to sync to iCloud, everything is completely offline. There are robust features when you need them without disrupting your flow: • Wiki-style links between documents • Collections and saved searches • Places for characters and notes • Comments and footnotes • Light and dark themes • Writing targets and history Ahti is built to be calm and quiet, while being rich in functionality when you need it.
Screenshots
Verdict
KTrunk and Ahti both sit at 5.0 stars, but that hides the real split: 100% of Ahti's written reviews are positive against 50% of KTrunk's. Ahti also leads on in-app purchases (none vs 3) and update cadence (every 6 days vs monthly). KTrunk's advantage is price (Free vs $5.99). On rating, ratings volume and ads 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; Ahti costs $5.99 up front. KTrunk sells 3 one-off in-app purchases. Ahti asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for KTrunk against 5.0 for Ahti. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews are what separate them: 50% of KTrunk's written reviews are positive against 100% of Ahti's.
KTrunk ships an update monthly, Ahti every 6 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | KTrunk | Ahti |
|---|---|---|
| Price | Free — better | $5.99 |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 2 |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | Clemens Schuetzdeller | Bret Merritt |
Customer experience
KTrunk
Ahti
In-app purchases
KTrunk
- Operating Convenience$0.99
- Privacy$1.99
- #Tag-Proposals$1.99
Ahti
No in-app purchases









