Comparison

InkMark vs Kioku

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

Head to head
About

InkMark

Read full description

Write beautifully. Publish everywhere. InkMark is a powerful markup editor for writers, developers, and anyone who loves clean, formatted text. Now with AI writing assistance, multi-platform publishing, and epub book export. WRITE WITH POWER • Full Markdown, HTML, and LaTeX support with live preview • Syntax highlighting that adapts to your content • Wiki links — connect your documents with [[double brackets]] • Templates for blog posts, meeting notes, journals, READMEs, and more AI WRITING ASSISTANT • Summarize, improve, continue writing, change tone • Translate to any language • Custom prompts for any writing task • Powered by GPT-4o-mini PUBLISH EVERYWHERE • WordPress, Medium, Ghost, and Blogholio • One-tap publishing with draft support • Frontmatter mapping for tags, excerpts, and featured images EXPORT AS BOOKS • Single document or entire folder to epub • Auto-generated table of contents • Custom cover image and metadata • Beautiful typography STAY ON TRACK • Writing goals with daily targets • Streak tracking and milestone badges • Weekly stats and progress bar ORGANIZE YOUR WAY • Unlimited documents and folders • Tags, favorites, and search • Backlinks panel shows connections • iCloud sync across all devices Free to use. Pro unlocks AI, publishing, epub export, wiki links, goals, and templates. Subscription Terms: • InkMark Pro is available as a monthly ($2.99/month) or yearly ($19.99/year) auto-renewable subscription. • Payment is charged to your Apple ID account at confirmation of purchase. • Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. • You can manage and cancel subscriptions in your Account Settings on the App Store. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://diegoavarela.github.io/legal/inkmark/privacy

About

Kioku

Features
Read full description

Kioku is a personal knowledge library for Mac. Save articles, PDFs, websites, and your own Markdown notes into organized vaults you can read, search, annotate, and keep with you offline. Use Kioku to turn scattered research into a calm, durable library. Paste a URL to archive a single page, save a PDF from your Mac, or crawl more of a site when you want a deeper reference vault. Kioku stores your content as Markdown with downloaded assets, so your library stays portable and readable outside the app. Write your own notes with a focused Markdown editor, add images, create internal links, and keep authored notes separate from saved web pages. While reading, select passages to save excerpts and notes so important ideas do not disappear after the first pass. Kioku also includes optional local AI features for summaries, retrieval, chat, and study cards. Supported models run on your Mac, keeping those experiences local to your device. Features: Save articles, PDFs, pages, and websites into Markdown vaults Read saved content offline in a native Mac interface Write and edit Markdown notes Organize saved pages into vaults Search your library Annotate passages and save excerpts Generate summaries with optional on-device AI Create study cards from saved pages and notes Store content in a local or iCloud Drive-backed folder Keep your library portable with Markdown files and assets Kioku is for readers, researchers, students, builders, and anyone who wants a quieter place to collect what matters.

Screenshots

InkMark4 screens
Kioku4 screens

Verdict

The call

The clearest difference is in-app purchases: Kioku at none against InkMark's 2. Kioku also leads on update cadence (every 2 days vs weekly). InkMark's advantage is device support (3 vs 1) and iOS requirement (16.6 vs 26.0). On price 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. InkMark sells 2 in-app purchases, starting at $1.99 per month. Kioku asks for nothing beyond the download.

UpkeepUpdate frequency

InkMark ships an update weekly, Kioku every 2 days. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 2 level
InkMark versus Kioku: the parameters behind the verdict, then further details
ParameterInkMarkKioku
PriceFreeFree
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS16.6 — better26.0
Further details — not scored
Size18 MB51 MB
Age rating4+4+
DeveloperDiego VarelaKai Kang

In-app purchases

2 purchases

InkMark

Subscriptions2
  • InkMark Pro Monthly$1.991 Month
  • InkMark Pro Yearly$19.991 Year
None

Kioku

No in-app purchases

Questions

Is InkMark free?
InkMark is free to download, with in-app purchases available.
Is Kioku free?
Kioku is free to download, with no in-app purchases.
Do InkMark or Kioku have ads?
Neither InkMark nor Kioku shows ads.
Which is updated more often, InkMark or Kioku?
InkMark ships an update weekly, and Kioku every 2 days. Most recently, InkMark was updated on October 7, 2026 and Kioku on September 29, 2026.

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