Second Brain vs Supernotes
Second Brain
secondbrainnotes.app
Supernotes
supernotes.appSide by side
| Figure | Second Brain | Supernotes |
|---|---|---|
| Price from | $3.33/mo | £6/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | — | Yes |
| API | — | Yes |
| Plans published | 3 | 6 |
| Spec score · AI Note-Taking Apps | 7.5 (#37) | 8.7 (#9) |
| Organization | The app infers categories and does not ask users to file notes into folders. | Users can tag, nest, and link notecards, then search and explore them with graph views. |
| Privacy | The maker says notes are isolated per account, AI processing requires explicit consent before the first note is processed, and notes are not used to train AI models. | The privacy policy says Supernotes does not own or sell user data or use it for advertising. |
| Product | Second Brain is an iPhone notes app that lets users capture thoughts and ask questions about them later in plain language. | Supernotes is a note-taking app for ideas, records, tasks, and lists, organized as digital notecards. |
Plans
Supernotes
- StarterPriced on request
- Unlimited£6 a month
- Unlimited£72 a year
- StarterFree
- Unlimited monthly£6 a month
- Unlimited annual£72 a year
In their own words
Second Brain
Second Brain has no write-up on Specifiction yet; its figures are above.
Supernotes
Supernotes is a note-taking app that organizes ideas, records, tasks, and lists as digital notecards. Cards can include equations, tables, images, checklists, and emojis, with a soft limit of 1,200 characters. Users can tag, nest, and link cards, search them, and explore their connections with graph views. The apps work offline and merge changes and sync when a device reconnects. Cards can be shared for read-only access or collaborative editing in real time. Supernotes imports from Obsidian, Roam Research, Google Keep, Notion, or Markdown, and exports notes as PDF, JSON, or Markdown. It offers an API and lists integrations including Telegram, Raycast, Pipedream, email, SupaSend, and Funnel. The company says notes are encrypted in transit with SSL and at rest with AES-256, and staff do not access note content without express permission during support. The free Starter plan lists 100 cards. Unlimited costs £6 a month, billed as £72 billed annually, and includes unlimited cards, AI Superpowers, full API and integrations, and priority support.