Who's Available? vs KTrunk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Who's Available?
This app lets you easily share your availability status with friends and family. Securely update your status via the app, widget, or Apple Watch, and see theirs in return. No registration or login is required, and your data remains private.
- Share availability status
- iCloud Shared Database integration
- Today widget support
- Apple Watch app
- iMessage app integration
- No registration required
- Developer cannot access data
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Ever want to know if your friend is available or not before you call or text? Now you have the tool. Who's Available allows iPhone users to share availability status securely through iCloud Shared Database. You can invite friends who can see your status, set your status in-app, in the Today widget, or on your Apple Watch. Your friends can see your status in-app or in the iMessage app! - No registration / log-in needed - The developer cannot see your data. Your data is stored in iCloud
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 rating: KTrunk at 5.0 against Who's Available?'s 3.7. Who's Available?'s advantage is in-app purchases (none vs 3) and update cadence (every 2 days vs monthly). On price, review sentiment, 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
Both are free to download. KTrunk sells 3 one-off in-app purchases. Who's Available? asks for nothing beyond the download.
KTrunk holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 50% and 50% positive.
Who's Available? ships an update every 2 days, KTrunk monthly. Both last shipped on September 29, 2026.
| Parameter | Who's Available? | KTrunk |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 2 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | Shunzhe Ma | Clemens Schuetzdeller |
Customer experience
Who's Available?
KTrunk
In-app purchases
Who's Available?
No in-app purchases
KTrunk
- Operating Convenience$0.99
- Privacy$1.99
- #Tag-Proposals$1.99
Questions
Is Who's Available? free?
Is KTrunk free?
Which has better reviews, Who's Available? or KTrunk?
Do Who's Available? or KTrunk have ads?
Which is updated more often, Who's Available? or KTrunk?
Other comparisons
