Comparison

Kosshi Outliner vs memomer

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

Head to head
About

Kosshi Outliner

This native outliner app allows you to organize thoughts with a hierarchical structure, zoom into specific sections, and format text using Markdown. It supports images, sketches, internal links, and reminders, with seamless iCloud sync across Apple devices.

Highlights
  • Hierarchical outlining with indentation
  • Zoom into specific rows
  • Markdown formatting
  • Image and file embedding
  • Apple Pencil sketches
  • Internal linking
  • Reminders and calendar sync
Features
Read full description

Kosshi is a fast, native outliner. Simple and smooth on large outlines. Available on Mac, iPhone, and iPad — one purchase covers all three. Outliner Hit Tab to indent and build a hierarchy. Collapse what you don't need, drag to move things around. Zoom In / Zoom Out Zoom into any row and only its contents are shown. Breadcrumbs tell you where you are, and you can jump home anytime. Markdown Bold, italic, highlight, links, checkboxes, code blocks, and LaTeX math all render right where you type. Formatting markers only appear while editing — move away and they're gone. Images & Files Add images by pasting or dragging, and resize however you want. PDFs and videos show as inline previews too. Apple Pencil Sketches Draw sketches with Apple Pencil on iPad. They sync to Mac and iPhone through iCloud. Search Cmd+F to search your whole outline. Matches get highlighted. Replace works too. Dark Mode Switch between light and dark themes. Automatically follows your system setting. Tags Use #tags to categorize and @tags for dates or status. Filter from the sidebar. Internal Links Type [[ to search and link to another row. Build a web of connected outlines. Bookmarks Press Cmd+D to bookmark a row. Bookmarks appear at the top of the sidebar. Prose Mode Switch a row to Prose Mode for long-form writing. Bullets disappear and children stay expanded. Reminders & Calendar Any @tag with a date syncs to Apple Reminders or Calendar. Use @todo(3/15), @meeting(every monday 10:00), and so on. Keyboard Shortcuts Collapse, move, indent — all without reaching for the mouse. Export Export as Markdown, OPML, or plain text. Your data is never locked in. Auto Backup Restore past outlines from daily backups. Feel free to delete outlines you no longer need. iCloud Sync When iCloud is available, your outlines sync across Apple devices via CloudKit. Data is stored in your iCloud account, and the developer cannot access its contents. Pay Once Built natively for speed. Launches quickly and works offline. One-time purchase covers Mac, iPhone, and iPad — no subscription, no account required. A 7-day free trial is available. Feedback Feature requests and bug reports are always welcome. Reach us via the contact form at https://kosshi.app/contact or on X at @shirokumamake.

About

memomer

Features
Read full description

memomer is an all-in-one memo app that lets you manage text, voice, handwriting, images, location-based notes, and web bookmarks all in one place. Easily save everyday thoughts, work ideas, travel records, web pages you want to revisit later, and many other kinds of information. Main Features: * Text memos * Voice memos * Handwritten memos * Image memos * Location-based memos * Web bookmark saving * Hierarchical organization * Bookmark feature You can organize your information in a folder-like hierarchy, making it easy to find what you need when you need it. memomer is more than just a notepad. It is your personal second brain for building up and growing your daily records and knowledge. Capture anything, anytime, anywhere. With memomer, you can grow your own personal knowledge base.

Screenshots

Kosshi Outliner4 screens
memomer4 screens

Verdict

The call

The clearest difference is ads: Kosshi Outliner at none against memomer's shown. memomer's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kosshi Outliner sells 1 one-off in-app purchase and memomer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
Kosshi Outliner versus memomer: the parameters behind the verdict, then further details
ParameterKosshi Outlinermemomer
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 daysEvery 3 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size29 MB48 MB
Age rating4+4+
DeveloperJunichi SatoBouzer LLC

In-app purchases

1 purchases

Kosshi Outliner

One-time1
  • Kosshi Outliner$24.99
1 purchases

memomer

One-time1
  • Remove Ads & Unlock Limits$5.99

Questions

Is Kosshi Outliner free?
Kosshi Outliner is free to download, with in-app purchases available.
Is memomer free?
memomer is free to download, with in-app purchases available.
Do Kosshi Outliner or memomer have ads?
memomer shows ads; Kosshi Outliner does not.
Which is updated more often, Kosshi Outliner or memomer?
Kosshi Outliner ships an update every 3 days, and memomer every 3 days. Most recently, Kosshi Outliner was updated on October 8, 2026 and memomer on October 9, 2026.

Other comparisons