hora Calendar tech stack

Google calendar built for the Mac

horacal.app ↗Checked Sep 2026

The stack

“Resend made the waitlist and launch emails simple: clean API, good deliverability, and no heavy marketing suite to maintain.” — the maker, Apr 2026 ↗

On its website: DNS: resend._domainkey.horacal.app TXT (record present); DNS: send.horacal.app MX feedback-smtp.eu-west-1.amazonses.com source · Oct 2026 ↗

Frontend Framework

Next.js

On its website: HTTP: horacal.app responds with x-powered-by: Next.js; HTTP: www.horacal.app responds with x-powered-by: Next.js source · Oct 2026 ↗

Hosting

Vercel

On its website: HTTP: horacal.app responds with x-vercel-id; HTTP: www.horacal.app responds with x-vercel-id source · Oct 2026 ↗

AI Coding Assistants

Claude Code

“Claude Code helped me move faster across SwiftUI, AppKit, sync edge cases, and launch infrastructure while keeping the codebase small enough for a solo founder to reason about.” — the maker, Apr 2026 ↗

Its market on Product Hunt

Premium calendar apps for professionals

in Calendar and planner apps · 140 products

7direct competitorsSome rivals

2223242526launched

See all 8 and how crowded it is →

hora Calendar next to products in calendar and planner apps

Hosting59% of 27 pick Vercel — so does hora Calendar
Frontend Framework76% of 17 pick Next.js — so does hora Calendar
Database56% of 16 pick Supabase — not known for hora Calendar
Transactional Email57% of 14 pick Resend — so does hora Calendar

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