Does the job, stays out of the way

No plugins to research. No templates to set up. Just a private place to capture thoughts while you work, with search that actually finds what you're looking for.

Design

Diff
Small floating window, built for focus
Obsidian
Full-screen app that demands context switching
Notion
Heavy workspace designed for teams
Apple Notes
Standard window, requires window management

Storage

Diff
Fully local
Obsidian
Local, with optional paid cloud sync
Notion
Cloud-based
Apple Notes
Local, synced free up to 5GB

Setup

Diff
Ready in 60 seconds
Obsidian
Hours spent finding the right plugins
Notion
Encourages diving into productivity rabbit holes
Apple Notes
Works well out of the box, but limited in scope

Search

Diff
Finds what you meant, not what you typed
Obsidian
Keyword only without plugins
Notion
Keyword; AI search costs $20/month
Apple Notes
Keyword only

Formatting

Diff
Markdown, optimised for dev notes
Obsidian
Markdown
Notion
Markdown + proprietary blocks
Apple Notes
No Markdown support

Integrations

Diff
GitHub, Linear, Slack built-in
Obsidian
Risks breaking your setup when community plugin stops working
Notion
Some (eg. no Github support)
Apple Notes
None

Cost

Diff
£20 (one-time payment)
Obsidian
Free, $4-18/month for sync
Notion
Free, but $10-20/month for useful features
Apple Notes
Free, but limited to 5GB

Frequently Asked Questions

What happens after the free trial?+

After your 7-day trial ends, your access to Diff will pause. We will not charge you automatically. You'll have to purchase the lifetime license to continue using Diff.

Is this really a lifetime license?+

Yes! Pay once, own software forever. You'll get all future updates and features at no additional cost.

What platforms do you support?+

Diff is built only for MacOS, and we are not planning to support other platforms at present.

Where is my data stored?+

All your notes are store locally, and never sent outside your machine (unless using external AI providers).

Do you support Ollama?+

Yes! You can use Ollama to keep your notes 100% private. However, currently no Ollama models provide multimodal support, so you won't be able to search through images.

Stay in flow, when the world says go

Join developers who spend time building great things, not configuring their plugins.