Key Takeaways
- Free on this Android SMS server is 1 device, 300 SMS lifetime, 300 contacts — then pause. Not unmetered carrier SMS.
- Do not rewrite the free-server hub or the developer “best free server” spoke. This page is the SKU facts.
- You bring a working Android and operator SMS credit. We do not sell airtime.
- Demo sends may append www.sms-gateway.app. That is not a production template.
- Starter/Pro/Business uncap platform volume with device caps 2/5/15. Developer is 25,000 SMS/year, still 1 device.
- Unused “credits” are not a prepaid pack we cash out.
Free is three numbers, not a cloud pack
What free really includes on an Android SMS server: a hosted control plane you can try, a downloadable app, and hard caps — 1 device, 300 SMS lifetime, 300 contacts. It does not include carrier airtime, a rented long code, or unmetered platform send. Anyone promising “free unlimited SMS” is selling a different physics.
Hub: free SMS server. Developer long-tail: best free SMS server for developers. Canonical prices: pricing.
“If the voucher is empty, Free did its job. The SIM did not.”
Hub J owns the category
Trial footers, abuse limits, free vs OSS live on other spokes. This page is the SKU. Live API: Developer Center.
What Free includes (and does not)
| Included | Not included |
|---|---|
| 1 paired Android slot | A spare device on the same SKU |
| 300 SMS lifetime (then pause) | Unmetered platform or carrier SMS |
| 300 contacts | A CRM warehouse |
| Hosted plane + app download | Operator prepaid packs |
| DLR/webhooks on those 300 | Load-test volume |
| Demo footer on demo accounts | Production-looking templates by default |
Demo footer uses www.sms-gateway.app. Trial footers. DLR on Free: free-server DLR.
Pause, footer, upgrade
Free and Developer pause at allowance — upgrade or custom, not silent aggregator overage. Scheduled SMS is Starter and up. Starter/Professional/Business uncap platform send volume; devices still meter (2 / 5 / 15); carrier fair-use still applies. Do not retitle this page “Unlimited SMS.”
The SIM is never free
Prepaid/postpaid is the operator. Refunds are platform plan fees only. Setup, Android app.
Checklist
- Intern README recites 1 / 300 / 300 / pause.
- Voucher owned before first canary.
- No “unlimited SMS” in tutorial titles.
- Demo footer expected on demo keys.
Next steps
Pricing, free hub, pricing model.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- OTP and 2FA SMS on AndroidAuthentication flows
- device and SMS volume pricingPlans and allowances
- Android SMS gateway product guideDefinition, product, and how to buy
- SMS API documentationLive endpoint reference
