Hey ProductHunt 👋

I'm Lohit, and I built SMSFoundry because I hit a wall every developer in India knows.

I was building a travel booking platform and needed to send OTPs and booking confirmations. But every SMS provider requires DLT registration — which requires a registered company. I didn't have one yet. I was still building the product.

Meanwhile, my ₹199/month phone plan included unlimited SMS. Going completely unused.

So I built a gateway that uses your own phone.

How it works:

1. Sign up at smsfoundry.com

2. Install the Android app on any phone with a SIM

3. Pair via QR code

4. Send SMS through REST API or web dashboard

5. Your phone sends the text. Your SIM. ₹0 per message.

What you get:

→ REST API with key-based auth and rate limiting

→ Real-time delivery tracking (queued → sent → delivered)

→ SMS templates with {{variable}} substitution

→ Webhook delivery reports

→ Multi-device support (connect multiple phones)

→ Contact management and groups

→ Web dashboard for manual and bulk sends

The cost comparison that made me build this:

3,000 SMS/month:

→ MSG91: ~₹750

→ Twilio: ~₹2,250

→ SMSFoundry: ₹99 flat

Works worldwide — not just India. Any Android phone, any SIM, any country. If your carrier has unlimited texts, your per-message cost is zero.

Built with: PHP 8 (no framework), MySQL, Kotlin (Android), vanilla JS

Free trial: 500 SMS, 7 days, no credit card.

Would love your feedback — especially from developers who've dealt with the DLT nightmare in India. Happy to answer any questions!