How UltraMsg works today
From the UltraMsg website (accessed September 27, 2026):
- One instance per number. You create an instance, get its ID and token, and scan a QR code to link your WhatsApp number.
- Fixed price. $39 per instance per month, or $390 per year, with no cost per message.
- Trial. A free 3-day account.
- Examples in PHP, Node.js, Python, Java, .NET, Go and more, plus webhooks for incoming messages.
UltraMsg and D-API side by side
| Criteria | UltraMsg | D-API |
|---|---|---|
| Connection type | Unofficial (QR code) | Unofficial (QR code or pairing code) and official WhatsApp API (Meta Cloud API) |
| Pricing | $39 per instance per month, flat | Per connection, falling with volume: $15.00 at 1–9, $9.90 at 10, $8.75 at 11–50 |
| Per-message fees | None | None on the unofficial WhatsApp API |
| Authentication | Instance ID and token | One account API key in the Authorization header |
| Dedicated IP per number | Check with the vendor | Yes, a dedicated proxy per connection |
| Trial | 3 days | 3 days, no credit card |
| WhatsApp voice calls (VoIP) | Check with the vendor | Included at no extra cost (bonus) |
UltraMsg vs D-API: monthly cost
UltraMsg on monthly billing versus the D-API Scale plan, where the tier price applies to every connection in the account.
| Connections | UltraMsg / month | D-API / month | Savings |
|---|---|---|---|
| 1 | $39.00 | $15.00 | 62% |
| 10 | $390.00 | $99.00 | 75% |
| 30 | $1,170.00 | $262.50 | 78% |
| 50 | $1,950.00 | $437.50 | 78% |
Above 50 connections, D-API pricing is Talk to sales. See pricing for details.
When to choose UltraMsg
- You want copy-paste examples in your language instead of calling a REST API from its reference.
- You run a single number and the difference in monthly cost is not a concern.
- You don't need the official WhatsApp API.
When to choose D-API
- You run many numbers. The price per connection drops as you grow, and every connection has per-instance isolation and a dedicated IP. See multiple WhatsApp numbers.
- Some customers need the official WhatsApp API. It uses the same send routes on D-API. See the official WhatsApp API.
- You want fewer fires to put out. Self-healing / auto-reconnect, webhooks retried with exponential backoff, 20+ servers across 3 datacenters and 99.9% uptime.
- You want support in English from the team that runs the infrastructure.
Migrating from UltraMsg to D-API
| On UltraMsg | On D-API |
|---|---|
| Instance | Session, identified by a sessionId you choose |
| Instance ID and token on each call | Account API key in the Authorization header, sessionId in the body |
| Instance created in the dashboard | Session created by API with POST /api/v1/sessions |
| Webhook set per instance | webhookUrl when creating the session |
- Put your sending code behind an internal interface so the provider can be swapped in one place.
- Create a D-API session per number and connect it by QR code or pairing code.
- Adapt your webhook receiver to the D-API envelope (
event,sessionId,data). See WhatsApp webhooks. - Move numbers in batches and log out of each UltraMsg instance after it is connected on D-API.
D-API is a WhatsApp API for teams that run many numbers. Compare with the Green API alternative or the Z-API alternative. The 3-day free trial needs no credit card.
Frequently asked questions
How much does UltraMsg cost?
UltraMsg lists $39 per instance per month, or $390 per year, with no cost per message. Each WhatsApp number needs its own instance.
Is D-API cheaper than UltraMsg?
Yes, at every public tier. D-API charges $15.00 per connection from 1 to 9, $9.90 at 10 and $8.75 from 11 to 50. Even UltraMsg’s annual plan works out to $32.50 per month, above D-API’s price for a single connection.
Is UltraMsg an official WhatsApp API?
No. You authenticate an UltraMsg instance by scanning a QR code with your phone, which makes it an unofficial WhatsApp API. D-API offers the same kind of connection and also the official WhatsApp API (Meta Cloud API) in the same integration.
Do I keep my number when switching from UltraMsg?
Yes. The number stays on your phone. Connect it to D-API with a new QR code or pairing code, confirm it is connected, then log out of the UltraMsg instance.
Does UltraMsg have more code examples?
UltraMsg shows examples in many languages, including PHP, Node.js, Python, Java, .NET and Go. D-API has an official Node.js SDK and a REST API with Swagger, which any language can call over HTTP.