Comparison

KTrunk vs Fluso

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Fluso

This AI workspace integrates your email, calendar, documents, and chat tools into a unified, secure environment. It proactively tracks commitments, performs complex tasks, and automates communications, remembering your work to take action for you.

Highlights
  • Tracks outstanding work across multiple platforms
  • Performs complex multi-step tasks with AI
  • Builds and exports editable documents
  • Automates communications and replies
  • Captures meetings and drafts recaps
  • Organizes projects and tracks blockers
  • Installs and creates custom skills
Features
Read full description

Fluso is your proactive AI workspace. It connects your email, calendar, documents, and chat tools into one secure environment that remembers your work and takes action for you. THE PROBLEM The decision is buried in a Slack thread. The numbers live in a spreadsheet. The deadline came up on a call. Your work is scattered across a dozen tools, and the context you need is never in one place. Fluso pulls it all together. WHAT FLUSO DOES • Tracks outstanding work Reads across Gmail, Slack, Drive, and Calendar to surface real commitments. Each one is stamped with an owner, a deadline, and where it came from. • Performs complex multi-step tasks Breaks work into steps: research, draft, check, revise. Deep work is powered by open-source models, with a Fast mode for simpler turns. • Builds real artifacts Docs, sheets, slides, Word, Excel, PowerPoint, and PDFs. Drafted from your context, editable after delivery, and exported without losing manual changes. • Automates communications Replies, follow-ups, and recaps drafted in your voice. Gmail stays draft-first until you approve every outbound send. • Captures meetings Walk out with the recap, action items, and follow-up drafted automatically. • Organises projects A workspace that searches past threads, preserves attachments per chat, and shows what is blocking the next step. • Installs skills 100+ saved instruction sets for marketing, legal, research, sales, and more. Or compose your own in plain English. • Builds automations Set a Friday board memo or a 9am pipeline brief once. Relative times resolve to your local timezone. Plain English, no code. CONNECTED TOOLS Gmail, Outlook, Google Drive, Google Calendar, Slack, Microsoft Teams, Notion, Dropbox, GitHub, and Linear. Connect, review per-tool permissions, and manage everything from one place. PRIVATE BY DESIGN • Open-source models: Built on open-weight models you can inspect. Your data never enters training. • EU data protection: Hosted on confidential compute in the EU. GDPR-bound and sovereign by design. • Dedicated sandbox: Every workspace runs in its own isolated environment. No shared tenants, no cross-leakage. • Your boundary, your rules: Choose our secure cloud, your VPC, or fully air-gapped on premise. A MEMORY OF HOW YOU WORK Fluso builds a private graph of your work: people, projects, decisions, and what is owed to whom. Mail, calendar, docs, and meetings are pulled in continuously and indexed inside your boundary. Ask anything and get the answer plus the threads, docs, and meetings it came from. Auditable, every time. WHO IT IS FOR Founders, lawyers, investors, marketers, researchers, doctors, consultants, sales leaders, and operations teams. Anyone whose work is built from connected context. Engineered in Switzerland. Hosted in the EU. A product of Prem AI.

Screenshots

KTrunk1 screens
Fluso4 screens

Verdict

The call

The clearest difference is in-app purchases: Fluso at none against KTrunk's 3. Fluso also leads on update cadence (every 2 weeks vs monthly) and iOS requirement (16.4 vs 18.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KTrunk sells 3 one-off in-app purchases. Fluso asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for KTrunk against 5.0 for Fluso. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

KTrunk ships an update monthly, Fluso every 2 weeks. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
KTrunk versus Fluso: the parameters behind the verdict, then further details
ParameterKTrunkFluso
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews50.0% of reviews—
Number of ratings22
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size10 MB68 MB
Age rating17+17+
DeveloperClemens SchuetzdellerVulpem

Customer experience

KTrunk

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Fluso

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

KTrunk

One-time3
  • Operating Convenience$0.99
  • Privacy$1.99
  • #Tag-Proposals$1.99
None

Fluso

No in-app purchases

Questions

Is KTrunk free?
KTrunk is free to download, with in-app purchases available.
Is Fluso free?
Fluso is free to download, with no in-app purchases.
Which has better reviews, KTrunk or Fluso?
KTrunk and Fluso are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do KTrunk or Fluso have ads?
Neither KTrunk nor Fluso shows ads.
Which is updated more often, KTrunk or Fluso?
KTrunk ships an update monthly, and Fluso every 2 weeks. Most recently, KTrunk was updated on September 29, 2026 and Fluso on October 4, 2026.

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