Comparison

Obsidian vs Cusp

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

Head to head
About

Obsidian

Organize your thoughts and ideas with a powerful knowledge base that stores your notes as plain text Markdown files. Access your personal second brain on any device, with extensive customization options and community-driven plugins.

Highlights
  • Local Markdown file storage
  • Customizable toolbar
  • Graph view
  • Community plugins
  • Themes
  • Sidebar pinning
  • iCloud vaults
Features
Read full description

Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files. It is a second brain, for you, forever. Now available on the go for iOS! Features include: - Customizable toolbar - Pull down quick actions - Graph view - Community plugins - Themes - Sidebar pinning for tablet - iCloud vaults

About

Cusp

Features
Read full description

Most task apps give you two states: not done, and done. That is not how work actually ends. A great deal of it is neither finished nor forgotten — it just sits, for months, being neither. Cusp gives work four lanes, and the fourth is the point. CUSP — named, not started. Everything begins here. DOING — you have actually picked it up. DONE — finished. RELEASED — deliberately let go. Not failed, not deleted: decided. RELEASING IS AN ACTION, NOT A DELETE The thread stays, with the date you let it go. A list you are allowed to abandon is a list you can trust — and a list you trust is one you will actually open. THE SUNDAY GLANCE Once a week Cusp shows one short panel: the threads that have been sitting on the cusp the longest, and how many days each has been there. No badge, no streak, no notification pressure. Just the number, once, so that starting it or releasing it is a decision you make rather than one that makes itself. YOUR WORK IN PLAIN FILES Choose a local or iCloud folder in Files that Cusp can read and write to. After restarting Cusp, choose the folder again to renew access. Cusp mirrors every thread there as a plain Markdown file, and every state change as one append-only .jsonl file per day. You can read it with anything, search it with anything. If Cusp vanished tomorrow, your record would not. FREE All four lanes, the Sunday glance, folder mirroring, and 100 threads. Not a trial. It does not expire. CUSP PLUS Removes the thread limit. That is the whole difference — no feature is held hostage behind it. NO ACCOUNT Cusp makes no network requests of its own. No sign-up, no server, no analytics, no third-party tracking. Cusp Plus is an auto-renewing subscription charged to your App Store account at confirmation of purchase. It renews unless cancelled at least 24 hours before the current period ends. Manage or cancel it in your App Store account settings. Terms: https://berkemd.github.io/norea/cusp/terms.html Privacy: https://berkemd.github.io/norea/cusp/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Obsidian4 screens
Cusp3 screens

Verdict

The call

The clearest difference is in-app purchases: Obsidian at none against Cusp's 2. Obsidian also leads on chart position (#120 vs unranked). Cusp's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Cusp sells 2 in-app purchases, starting at $2.99 per month. Obsidian asks for nothing beyond the download.

UpkeepUpdate frequency

Obsidian ships an update every 3 weeks, Cusp every 9 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 8 level
Obsidian versus Cusp: the parameters behind the verdict, then further details
ParameterObsidianCusp
PriceFreeFree
Rating4.5 (2.8K ratings) — better—
Positive reviews62.0% of reviews—
Number of ratings2.8K — better—
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
Best chart rank#120 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size39 MB31 MB
Age rating4+4+
DeveloperDynalist Inc.BERKE KAHRAMAN

Bugs and requests

Obsidian

Reported bugs

3 issues
  • Sync issues leading to data loss
  • Freezing and crashing on mobile devices
  • Editing bugs and text input issues

Requested features

5 requests
  • Improved sorting and organization options
  • WYSIWYG editing on mobile
  • Better integration with other cloud storage services
  • More intuitive onboarding process for new users
  • Native mobile widgets and share sheet integration

Cusp

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Obsidian

No in-app purchases

2 purchases

Cusp

Subscriptions2
  • Cusp Plus$2.991 Month
  • Cusp Plus$24.991 Year

Questions

Is Obsidian free?
Obsidian is free to download, with no in-app purchases.
Is Cusp free?
Cusp is free to download, with in-app purchases available.
Do Obsidian or Cusp have ads?
Neither Obsidian nor Cusp shows ads.
Which is updated more often, Obsidian or Cusp?
Obsidian ships an update every 3 weeks, and Cusp every 9 days. Most recently, Obsidian was updated on November 9, 2026 and Cusp on October 31, 2026.

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