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Website, pricing, platforms and company facts side by side.
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| Website | elcano.tax | reactionic.github.io |
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| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Elcano is a tax-residency tracker for people who live between jurisdictions. Log a day per country, see exactly how you stand against each country's threshold (183-day rule, Schengen 90/180, UK Statutory Residence Test, US Substantial Presence Test), and spot unaccounted-for days before an...
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What each product offers, as listed by its team.


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As answered by people managing Elcano.tax and React-Ionic.
Elcano.tax's answer
Most trackers stop at a day count or focus on US states. Elcano is international and produces an audit-ready workpaper — methodology, evidence index and gap analysis — and it flags the days you haven't accounted for, which is the first thing an inspector asks about.
Elcano.tax's answer
It counts days worldwide (not only US states), flags Schengen 90/180, UK SRT and US SPT, and exports an inspector-focused workpaper no other tracker produces. Privacy-first and free to start.
Elcano.tax's answer
People who live between jurisdictions — digital nomads, expats, remote workers and perpetual travelers who need to prove where they are (and aren't) tax resident.
Elcano.tax's answer
It was built for people who live between tax categories and found existing trackers were either US-state-focused or stopped at a raw day count — never producing the workpaper an advisor or an inspector actually needs.
Elcano.tax's answer
A React + TypeScript single-page app with an optional Supabase backend and a privacy-first local-storage fallback.
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