Calx
Most fitness apps track. Calx coaches. Your AI trainer, nutrition coach, body analyzer, and accountability partner — in one system.
Estimated origin: India
Added August 27, 2026
· Last analysed August 27, 2026 · via 
StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 27 August 2026; the live site may have changed since.
Calx has the basics covered well, with complete legal pages and clean crawl signals. Main gaps: missing several security headers and incomplete email security.
Launched on Product Hunt on August 27, 2026. The site is hosted on Hostinger. Our crawler found 11 technologies on this site, covering transactional email, hosting, CSS frameworks, and DNS providers. The stack includes Next.js, React, and Tailwind CSS.
It's also on one of the most common stacks we track, shared by 490 launches.
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Tech Stack (11) · Indie stack
| DNS |
Hostinger DNS
|
| Hosting |
Hostinger
|
Vercel
|
|
| Security | HSTS |
| Business email |
Hostinger Email
|
| Transactional email |
Amazon SES
|
Resend
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(5)
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Performance How?
Broken first-party requests (1), worth fixing
- 404 /?_rsc=1etyp
Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.