Note-taking apps split on a few axes that buyers care about: sync model (cloud-only, local-first, end-to-end encrypted, plain-text in a folder), formatting depth (Markdown, rich-text, blocks, outliner), capture surface (web clipper, mobile share, voice, OCR), and pricing. The category is crowded (Notion, Obsidian, Apple Notes, Bear, Roam, Logseq, Capacities, Reflect, Mem) and each app has loud advocates, so editorial credibility depends on getting the spec table exactly right.

SleekRank reads one matrix with app slug, sync model, starting price, format model, capture surface as a delimited list, and a focus tag. Each row drives the per-app page and every pair the app appears in. Tag mappings push the sync model and pricing into the hero, list mappings render capture surface into a checklist, and meta mappings rewrite the page description per slug.

When Notion adjusts its free-tier block limit or Obsidian Sync changes its pricing, you edit the row and flush the cache. The corpus catches up. Adding Capacities to a corpus that already covers Notion, Obsidian, Apple Notes, Bear, and Logseq is one row plus the five pair pages it multiplies into.

Note-taking apps are deeply opinionated and the buying decision is sticky because moving notes between apps is painful. Buyers know that, so they read comparison pages carefully and bounce on stale data. Notion has adjusted its free-tier block limit several times in recent years; Obsidian Sync has changed its pricing structure; Bear shipped a major rewrite; Apple Notes added smart folders and richer tag support; Logseq formalized its sync product.

The buyer who arrives at a note app comparison page is usually thinking about a specific workflow (Markdown notes that live in a Git repo, blocks that link to a database, daily notes that roll forward, voice capture from the lock screen) and the answer they need is which app fits that workflow at the price they will pay over time. A page that shows last year's free-tier block limit or describes a sync model that has since changed is worse than no page at all because the buyer clicks through, finds the discrepancy in the app store or vendor site, and bounces. Note app affiliate revenue is meaningful for productivity-focused sites, so trust on the page is paid trust.

The freshness problem also affects format model claims (Notion's blocks redesign, Obsidian's plugin ecosystem updates, Bear's editor rewrite), and pages that miss those updates look stale. SleekRank does not solve research; it solves the propagation, so the cell you edit on Tuesday is reflected on every per-app and pair page by Wednesday's cache cycle.