Tinderbox
by Tinderbox
What Tinderbox is
Tinderbox is a macOS workbench for developing ideas and plans as information expands. It lets users organize notes visually by arranging, shaping, coloring, and linking them, then inspect those notes as maps, timelines, charts, or outlines. Agents continually scan notes for conditions such as overdue tasks, incomplete notes, or selected topics. Tinderbox 11.8’s AI bridge supports a wider range of models and lets users supply models with resources and prompts from notes in a Hints folder. Files use XML, while exports can include HTML, XML, RSS, OPML, and other formats. The app works offline, supports note sharing, and integrates with Apple Notes, Evernote, DEVONthink, Dropbox, iCloud, and Simplenote. Eastgate says documents remain on users’ computers, although some releases may send anonymized usage information. Tinderbox requires macOS 12 or later, with an older-system version also offered. A free demonstration has full functionality but allows about thirty notes.
Who it suits
Tinderbox suits writers, journalists, researchers, teachers, workgroups, classrooms, and laboratories needing linked notes and multiple views. It is for macOS users who want offline access and structured idea development.
What it does well
- Maps, timelines, charts, and outline views
- Agents scan notes for selected criteria
- Offline access and note sharing
- Exports HTML, XML, RSS, and OPML
- Integrates with six listed services
What to know first
- No free plan
- Requires macOS 12 or later
- Demonstration limited to about thirty notes
- Listed price starts at $289, paid once
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Tinderbox | billed monthly · Tinderbox 11.8.0 for Macintosh · Includes one year of free upgrades and Eastgate support | $289, paid once |
| Tinderbox | billed monthly · Tinderbox 11.8.0 for Macintosh · Includes one year of free upgrades and Eastgate support | $289 a month |
| Subscribe | Annual updates · Cancel anytime | On request |
| Subscribe | Annual updates · Cancel anytime | On request |
| Household | billed monthly · 5 people | $325 a month |
| Household | billed monthly · 5 people | $325, paid once |
| Ten Pack | billed monthly · 10 users | $645, paid once |
| Ten Pack | billed monthly · 10 users | $645 a month |
The first 8 of 15 plans, as eastgate.com lists them, read 20 Sept 2026. The maker's own page has the final word. Every plan
Verdict
Tinderbox combines visual note organization, automated searches, exports, integrations, and an AI bridge in a macOS application. Its paid licensing and macOS requirement matter, while the limited demonstration provides a way to explore the workflow.
Facts from Tinderbox's own pages
- Agents
- Tinderbox agents continuously scan notes for criteria such as overdue tasks, incomplete notes, or selected topics. · eastgate.com, 12 Oct 2026
- AI
- Tinderbox 11.8’s AI bridge supports a broader range of models and allows users to provide models with resources and prompts from notes in a Hints folder. · eastgate.com, 12 Oct 2026
- File formats
- Tinderbox files are XML, and the application can create HTML, XML, RSS, OPML, and other exports. · eastgate.com, 12 Oct 2026
- Free plan
- No · eastgate.com, 20 Sept 2026
- Headquarters
- Watertown, Massachusetts, USA · eastgate.com, 28 Sept 2026
- Integrations
- Eastgate says Tinderbox works with Notes, Evernote, DEVONthink To Go, Dropbox, iCloud, and more. · eastgate.com, 12 Oct 2026
- Intended users
- Eastgate describes Tinderbox as useful for writers, journalists, researchers, teachers, workgroups, classrooms, and laboratories. · eastgate.com, 12 Oct 2026
- Note sharing
- Yes · eastgate.com, 20 Sept 2026
- Offline access
- Yes · eastgate.com, 20 Sept 2026
- Platform requirement
- Tinderbox requires macOS 12 or later; Eastgate also offers a version for older systems. · eastgate.com, 12 Oct 2026
- Supported platforms
- macOS · eastgate.com, 20 Sept 2026
- Privacy
- Eastgate says Tinderbox documents are stored on users’ computers, it does not collect information or sell it to third parties, and some releases may send anonymized usage information. · eastgate.com, 12 Oct 2026
- Purpose
- Tinderbox is a workbench for ideas and plans that helps users analyze and understand information as their knowledge grows. · eastgate.com, 12 Oct 2026
- Support
- A Tinderbox purchase includes a year of free upgrades and Eastgate support, and the maker points users to its forum and screencasts for help. · eastgate.com, 12 Oct 2026
- Trial limit
- The free demonstration does everything Tinderbox does but can make only about thirty notes. · eastgate.com, 12 Oct 2026
- Views
- Users can view notes as maps, timelines, charts, and outlines. · eastgate.com, 12 Oct 2026
- Visual mapping
- Tinderbox maps notes and lets users build relationships by arranging, shaping, coloring, and linking them. · eastgate.com, 12 Oct 2026
Where Tinderbox stands on Freedom251
- Note-taking apps#200 of 216
- Personal Knowledge Management Software#30 of 32