Comparison

The Quantified Self vs GrayCat Markdown

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

Head to head
About

The Quantified Self

This app helps you manage recurring tasks and habits, prioritizing them by urgency, due date, or importance. It offers automation based on location or NFC tags, performance tracking, and workload adjustment. Organize habits into projects and review your past activities.

Highlights
  • Recurring task management
  • Habit tracking (good and bad)
  • Automation via location/NFC
  • Habit organization into projects
  • Performance tracking over time
  • Workload adjustment based on bandwidth
Features
Read full description

Manage your recurring tasks and your habits (good and bad), and see your intentions laid out by urgency, due date, or importance. You can also: - Automate your habits based on location, health, or NFC tags - Organize habits into projects - Track your performance over time - Right-size your habit workload by your available bandwidth - Peruse your timeline of past habits Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

GrayCat Markdown

Features
Read full description

GrayCat Markdown is now available on iPhone and iPad. Bring the Markdown files you saved from the Mac app into iCloud, then open, edit, preview, and prepare them for publishing on the go. Core features • Open iCloud documents: shares the same iCloud.com.graycat.stickymd Documents container with the Mac app. • Choose a writing folder: authorize your own iCloud Drive folder in Files, such as a personal writing folder. • Mobile Markdown toolbar: headings, bold, italic, quotes, lists, links, and images are easy to insert. • Preview four output forms directly: Standard, Zhihu, Toutiao, and WeChat Official Account styles live inside Preview. • Keep image assets beside the document: inserted photos or image files are saved into the matching .assets folder and referenced with relative Markdown paths. • Search titles, paths, and document body text. • Publish readiness checks: review word count, headings, images, links, and code fences before copying. • Recent documents for quick return. Sync model GrayCat Markdown uses iCloud Documents and local Markdown files. It does not use a third-party cloud service or upload your content to the developer. After saving from the Mac app to iCloud, refresh the iOS document list or reload the active document to read the latest content. For a custom folder, select and authorize that folder on iOS first. Privacy • No app account required • No analytics collection • No ads or tracking SDKs • Documents stay in the local or iCloud location you choose

Screenshots

The Quantified Self3 screens
GrayCat Markdown4 screens

Verdict

The call

The clearest difference is in-app purchases: GrayCat Markdown at none against The Quantified Self's 4. GrayCat Markdown also leads on update cadence (every 5 weeks vs every 7 months). The Quantified Self's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. The Quantified Self sells 4 in-app purchases, starting at $1.99 per month. GrayCat Markdown asks for nothing beyond the download.

UpkeepUpdate frequency

The Quantified Self ships an update every 7 months, GrayCat Markdown every 5 weeks. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

Scorecard3 real differences Ā· 5 level
The Quantified Self versus GrayCat Markdown: the parameters behind the verdict, then further details
ParameterThe Quantified SelfGrayCat Markdown
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 7 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better17.0
Further details — not scored
Size39 MB5 MB
Age rating4+4+
DeveloperJared Clifton-Lee泳涛 茅

In-app purchases

4 purchases

The Quantified Self

Subscriptions4
  • Pro Monthly$1.991 Month
  • Pro Quarterly$5.493 Months
  • Pro Biannual$10.496 Months
Show 1 more
  • Pro Yearly$20.491 Year
None

GrayCat Markdown

No in-app purchases

Questions

Is The Quantified Self free?
The Quantified Self is free to download, with in-app purchases available.
Is GrayCat Markdown free?
GrayCat Markdown is free to download, with no in-app purchases.
Do The Quantified Self or GrayCat Markdown have ads?
Neither The Quantified Self nor GrayCat Markdown shows ads.
Which is updated more often, The Quantified Self or GrayCat Markdown?
The Quantified Self ships an update every 7 months, and GrayCat Markdown every 5 weeks. Most recently, The Quantified Self was updated on September 17, 2026 and GrayCat Markdown on September 9, 2026.

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