SMS Bridge vs the alternatives
SMS Bridge and httpSMS both send through an Android phone you own; Twilio rents you a number and charges per message. Pick the one that fits.
| SMS Bridge | httpSMS | Twilio | |
|---|---|---|---|
| How you pay | Nothing per message — your SIM plan | Monthly plan with a message quota | Per message, plus carrier fees |
| Free tier | Free during early access | 200 messages / month | Trial credit only |
| Paid entry price | No paid plan yet | Pro: $10 / month for 5,000 messages | Roughly $8+ per 1,000 US SMS |
| Sender number | Your own SIM | Your own SIM | A number you rent |
| Multiple phones | Yes | Yes | Not applicable |
| AI auto-reply | Built in, with your own Gemini key | No | Build it yourself |
| Personalised campaigns | Up to 10,000 recipients | Bulk send | Build it yourself |
| Test mode with simulated delivery | Yes | No | Test credentials |
| Signed webhooks with retries | Yes | Yes | Yes |
| Message text retention | Removed after 30 min, record after 24 h | Stored in your account | Stored in your account |
| Works without an Android phone | No | No | Yes |
Competitor details come from their public websites in September 2026 and may have changed — check their pricing pages before deciding. Trademarks belong to their respective owners.