Ultramsg charges $39/month per instance for a hosted linked-device WhatsApp API - the same technology approach as WABridges at nearly 8x the price. Their trial is 3 days capped at 100 messages/day, and their FAQ is blunt about cancellations: "the refund option is not available." WABridges is $5/month, the trial is 7 days with no card, and unused days are refunded automatically the moment you cancel.
| Ultramsg | WABridges | |
|---|---|---|
| Entry price | $39/instance/month | $5/bridge/month |
| Free trial | 3 days, 100 msgs/day cap | 7 days, full bridge, no card |
| Message limits | Unlimited | Unlimited |
| Refund on cancel | "Not available" - their FAQ | Yes - prorated automatically |
| Technology | Linked-device (unofficial) | Linked-device (unofficial) |
| Hosted for you | Yes | Yes |
| REST API | Yes | Yes |
| Webhooks | Yes | Yes |
| Annual discount pressure | $390/year to save 17% | None - $5 is $5 |
Provision a bridge, pair a number, start sending in under 60 seconds. Flat pricing, unlimited messages, prorated refund if you cancel.