Logster vs KTrunk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Logster
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With Logster you can simply create notes for your productions. These "logs" are related to a timecode. For creating logs you can use either buttons or a comment field for individual text notes. Logster further allows you to create logs having a start- and a end timecode to describe time ranges. +++ Internal system clock or external timecode sources Logster can be synced with the internal system clock or an external LTC timecode by simply connecting the timecode source with the audio jack of your iPad. +++ External keyboard support Logster allows a faster input of the commentfield with the support of CMD+RETURN Hotkey while working with an external keyboard. +++ Use of different frame rates All logs are stored as a timecode value, which can be visualized and used with different frame rates (24, 25 or 30 FPS). +++ Customize productions To perfectly fit your needs Logster is highly customizable and lets you create multiple setups for different productions. Each setup may have multiple pages with multiple buttons or input fields. Each keyword can be customized for color and type. +++ Export and email reports Logster works without a permanent internet connection. All logs are saved locally on your iPad and can be sent by email once a mail account is available. You can choose between a CSV file format which may be used in common spreadsheet software or a XML file format while exporting your logs. +++ Collaboration & Workflow integration Logster is designed for single use and also for collaboration. Some productions may require all logged information to be consistent and further be connected to a central database or a content management system. With Logster logs created on different iPads can easily be synced manually or automatically to a central place. If you're wondering how Logster can be integrated into your workflow, we will be pleased to further advise you.
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 in-app purchases: Logster at none against KTrunk's 3. Logster also leads on iOS requirement (15.6 vs 18.0). KTrunk's advantage is update cadence (monthly vs every 3 months). On price, 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
Both are free to download. KTrunk sells 3 one-off in-app purchases. Logster asks for nothing beyond the download.
Logster ships an update every 3 months, KTrunk monthly. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.
| Parameter | Logster | KTrunk |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | Studio Berlin GmbH | Clemens Schuetzdeller |
In-app purchases
Logster
No in-app purchases
KTrunk
- Operating Convenience$0.99
- Privacy$1.99
- #Tag-Proposals$1.99








