
Create iOS and Android apps with React and Ionic

StudioTax
Open Tax Solver
UsTaxes.org
Budget Calendar
Fiscally.io
Tax calendar for self-employed in Spain. Never miss a tax deadline.

Website, pricing, platforms and company facts side by side.
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| Website | reactionic.github.io | radarfiscal.es |
| Pricing | — | |
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| Company | — | Startup from Spain · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of React-Ionic yet.
Free browser extension and website that shows personalized tax deadlines for autónomos in Spain. Filter by tax regime (estimación directa, módulos, IVA/IGIC), see countdown timers with urgency colors, and read detailed guides for each tax form. Available for Chrome and Firefox in 9 languages. No...
What each product offers, as listed by its team.


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As answered by people managing React-Ionic and Radar Fiscal.
Radar Fiscal's answer:
It's the only tool that shows personalized tax deadlines for Spanish autónomos — filtered by your exact tax regime. Not a generic calendar, not a gestoría trying to sell you services. Just your deadlines, at a glance.
Radar Fiscal's answer:
Competitors are accounting SaaS platforms that happen to have blog articles about deadlines. Radar Fiscal is purpose-built for one thing: knowing what you owe and when. It's free, works as a browser extension, supports 9 languages for expats, and syncs with your calendar app.
Radar Fiscal's answer:
Self-employed workers (autónomos) in Spain, especially expats who aren't yet familiar with the Spanish tax system. Also useful for any autónomo who wants a quick visual overview of upcoming deadlines without navigating the AEAT website.
Radar Fiscal's answer:
I moved to Spain and became autónomo. The AEAT calendar lists every obligation for every taxpayer — overwhelming when you just want to know what applies to you. I built Radar Fiscal to solve my own problem: a simple tool that tells you "here's what YOU need to file, and here's the date."
Radar Fiscal's answer:
TypeScript, Lit (web components), Vite, Cloudflare Workers. Chrome Extension (Manifest V3) and Firefox add-on.
Radar Fiscal's answer:
Share your experience with using React-Ionic and Radar Fiscal. For example, how are they different and which one is better?