Comparison

Koku vs FrankenMarkdown

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

Head to head
About

Koku

This app helps you focus on tasks with customizable work and rest intervals. It offers a simple, distraction-free interface and integrates with your home screen and Apple Watch for easy access and control. Enjoy deep work without accounts, streaks, or subscriptions.

Highlights
  • Customizable focus and rest sessions
  • Classic Pomodoro rhythm option
  • Home Screen widget for quick access
  • Live Activities on lock screen
  • Apple Watch companion app
  • Minimalist, distraction-free design
Features
Read full description

Koku is a focus timer for deep work. Focus. Rest. Repeat. Set your own session lengths or use the classic rhythm - twenty-five minutes of focus, five minutes of rest, a longer break every four sessions. Each minute is a dot. Watch them fill. - No accounts. - No streaks. - No subscriptions. Just time, and the work in front of you. Add Koku to your Home Screen for quick access - start, pause, and skip sessions right from the widget. Keep the timer visible on your lock screen with Live Activities. Koku also includes an Apple Watch companion app that works with the iPhone app, so you can check your timer and control sessions from your wrist. Designed for iPhone, with an Apple Watch companion. Light and dark mode. Works in any language. Koku (刻) is the Japanese word for a moment of time.

About

FrankenMarkdown

Write, preview, and publish Markdown documents locally without sending data to a server. Offers advanced tools for document analysis, revision comparison, and multi-chapter project management. Export as PDF or HTML.

Highlights
  • Live Markdown preview
  • Syntax highlighting
  • Document statistics
  • Revision comparison
  • Multi-chapter projects
  • Local PDF/HTML export
Features
Read full description

Write Markdown, inspect the document as a system, and publish a finished file without sending the text to a server. FrankenMarkdown keeps the source and rendered document together. The editor provides live syntax highlighting, line numbers, an outline, and an automatically updated preview. On iPad and Mac, source and output can remain visible side by side; iPhone uses focused lanes sized for the smaller display. Document Lab adds the tools needed for longer work: word and reading statistics, structure and accessibility checks, semantic comparison between revisions, polished document templates, and publishing controls. Multi-chapter projects can produce a continuous PDF or a self-contained site package. Export the current document as PDF or self-contained HTML. The bundled Rust rendering engine handles typography, tables, code, mathematical notation, and document structure locally. No account, advertising, tracking, or cloud processing is required. Your text stays on the device unless you choose to share an exported file.

Screenshots

Koku4 screens
FrankenMarkdown1 screens

Verdict

The call

The clearest difference is rating: FrankenMarkdown at 5.0 against Koku's 3.0. FrankenMarkdown also leads on iOS requirement (17.0 vs 26.4). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FrankenMarkdown holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard2 real differences · 7 level
Koku versus FrankenMarkdown: the parameters behind the verdict, then further details
ParameterKokuFrankenMarkdown
PriceFreeFree
Rating3.0 (1 ratings)5.0 (1 ratings) — better
Number of ratings11
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, Apple WatchiPhone, iPad, Mac — better
Requires iOS26.417.0 — better
Further details — not scored
Size10 MB11 MB
Age rating4+4+
DeveloperRodolfo Alberto Lopez TerriquezJeffrey Emanuel

In-app purchases

None

Koku

No in-app purchases

None

FrankenMarkdown

No in-app purchases

Questions

Is Koku free?
Koku is free to download, with no in-app purchases.
Is FrankenMarkdown free?
FrankenMarkdown is free to download, with no in-app purchases.
Which has better reviews, Koku or FrankenMarkdown?
FrankenMarkdown is rated higher. Koku averages 3.0 out of 5 from 1 ratings, while FrankenMarkdown averages 5.0 from 1 ratings.
Do Koku or FrankenMarkdown have ads?
Neither Koku nor FrankenMarkdown shows ads.

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