Boromlia and Aeon Timeline compared row by row: runs in any browser with nothing installed, publishes to a link or an iframe, six views of one record, and $49.99 paid once with nothing to renew.
Boromlia runs in a browser on any machine with nothing installed, and what it produces is a URL: a page, a read-only link, or an iframe in somebody else’s article. Buying once is available here too, at $49.99 with nothing to renew.
There is nothing to install and nothing tied to one computer. The same account opens on Windows, macOS, Linux, a tablet or a phone, and a timeline can be published as a page with its own title, description and structured data, shared as a read-only link, or embedded in another site with a single iframe tag that keeps showing the live timeline as you add to it.
Collaborators work on the same timeline inside the same account, so there is no file to pass around or merge. If you would rather not subscribe, Founding Member is $49.99 paid once for everything the Advanced plan carries, and timeline slots are $2.99 each bought outright.
Aeon Timeline details checked 2026-09-06.
Views of one record. Boromlia: Six: River, Cards, Map, Spans, Ribbon and Log, switched without re-entering anything. Aeon Timeline: Timeline, relationship and narrative views over a modelled world
Map of located events. Boromlia: Yes. Every event carries real coordinates and draws as a waypoint on one route. Aeon Timeline: to be verified
Sortable table view. Boromlia: Yes, the Log style. One dense row per event, and the shape the CSV writes. Aeon Timeline: to be verified
Ranges and single moments. Boromlia: Both, on one shared axis, so a two-week phase and a single decision sit together. Aeon Timeline: Yes, with dependencies between events
Time scale. Boromlia: Seconds through minutes, hours, days and months to years, set per timeline. Aeon Timeline: to be verified
Source on every event. Boromlia: Yes, a field of its own, and "has a source" is one of the filters. Aeon Timeline: to be verified
Photographs per event. Boromlia: As many as the moment needs. Bulk upload reads the date and GPS out of the files. Aeon Timeline: to be verified
Event description. Boromlia: Rich text, plus people, place and tags on the same event. Aeon Timeline: Yes, with characters, arcs and entity relationships
Chapters and tags. Boromlia: Chapters group events into periods; tags cut across them. Aeon Timeline: to be verified
Filters. Boromlia: Search, tag, category, period and provenance, remembered per timeline. Aeon Timeline: to be verified
Bulk import. Boromlia: CSV or TSV on Advanced, with column mapping and every row previewed before saving. Aeon Timeline: Yes, including CSV and Scrivener
Export. Boromlia: A4 print PDF, CSV of every field, and a zip of images with a manifest. Aeon Timeline: Image, PDF and CSV
Embed in another page. Boromlia: One iframe tag on Advanced. No script, no key, and it reads the live timeline. Aeon Timeline: to be verified
Default visibility. Boromlia: Private to your account until you publish. Shared links are read-only and noindex. Aeon Timeline: Files stored on your own machine
Working with other people. Boromlia: Collaborators are added per timeline and contribute events. No seat to buy each. Aeon Timeline: to be verified
Runs in. Boromlia: Any browser. Windows, macOS, Linux, tablets and phones, with nothing installed. Aeon Timeline: Installed software: macOS, iOS and Windows, up to 5 devices, works offline
Price. Boromlia: Free tier, $2.99 a timeline slot, $12 a month, or $49.99 once with nothing to renew. Aeon Timeline: $64.99 one-time, perpetual licence. 14-day trial, no free tier