WaSMS vs WATI: An Honest, Feature-by-Feature Comparison
How WaSMS and WATI stack up on pricing, features, and where each one actually wins.
If you're choosing between WaSMS vs WATI for WhatsApp business messaging, the short version is this: WATI is a mature, subscription-priced platform built specifically around the official WhatsApp Business API, while WaSMS is a free, all-in-one messaging and AI platform where WhatsApp is one of several channels alongside SMS and email — and the pricing model is fundamentally different: free, rather than per seat.
Both are real options for a growing business. The right one depends on how you're using WhatsApp, whether you need SMS and email in the same inbox, and how much you want to spend per agent.
Pricing Side by Side
WATI, like most WhatsApp Business API platforms, is priced per subscription tier, usually scaling with the number of agent seats and message volume, on top of Meta's own per-conversation charges for the WhatsApp API. Exact numbers change over time and by region, so check WATI's current pricing page for the latest figures. A useful way to think about it: the more your team and message volume grow, the more the subscription and pass-through API costs grow with it.
WaSMS takes a different approach entirely: the core platform — WhatsApp, SMS, email, the shared inbox, and the AI — is free forever, because it connects through your own gateway (your own paired WhatsApp number, your own Android phone for SMS, and a free-tier Brevo account for email) rather than billing you for API access on top of a subscription. You provide the hardware, a $3 VPS or a spare PC; WaSMS provides the software.
This isn't a free trial that becomes paid. The seven core features — WhatsApp, SMS, email, AI, agentic AI actions, the gateway server, and the shared inbox — stay free regardless of how much you send.
WaSMS vs WATI: Feature Parity Table
| Feature | WATI | WaSMS |
|---|---|---|
| Official WhatsApp Business API | Yes | Bring-your-own-number pairing |
| Shared team inbox | Yes | Yes |
| Broadcast / bulk messaging | Yes | Yes |
| Chatbot / flow builder | Yes | AI-driven, trained on your data |
| SMS in the same inbox | No | Yes |
| Email in the same inbox | No | Yes |
| AI trained on your own conversations | Limited | Yes, core feature |
| Agentic AI actions (bookings, follow-ups) | Limited | Yes |
| Pricing model | Per-seat subscription | Free |
Where WATI Leads
WATI's biggest advantage is that it's built on the official WhatsApp Business API from the ground up, which matters if you specifically need the green-tick verified business profile, official message templates for marketing outside the 24-hour window, or very high-volume broadcast to large lists where API rate limits and Meta's own compliance tooling matter. If your business is WhatsApp-only, at meaningful scale, and you want a platform purpose-built around Meta's API rules, WATI's maturity in that specific lane is real — see our broader WhatsApp Business API explainer for how the official API differs from a paired-number approach.
WATI also has a longer track record with enterprise integrations (Shopify, HubSpot, Zapier) that some established teams already depend on, and its flow builder is mature for teams that specifically want a visual, drag-and-drop chatbot design process.
Where WaSMS Leads
WaSMS's advantage starts with the pricing model: everything is free, so there's no per-seat cost that scales against you as your team grows. Beyond price, the bigger structural difference is that WaSMS treats WhatsApp, SMS, and email as one inbox with one AI trained across all of it — Sarah, who runs a boutique, gets the same AI-generated reply logic whether a customer messages her on WhatsApp, texts her shop's SMS number, or emails support, because the AI is trained on the combined conversation history, not siloed per channel.
The agentic AI actions also go further than a traditional chatbot flow builder — instead of a fixed decision tree, the AI can take real actions, like booking an appointment, sending a follow-up, or escalating to a human, based on the actual conversation, not a pre-scripted path.
Example: an AI Action rule in WaSMS
IF customer asks about "appointment" AND slot available
THEN book_appointment() AND send_confirmation()
Migration Path
Moving from WATI to WaSMS mainly involves two things: exporting your contact list, see our contact import guide for formatting, and re-pairing your WhatsApp number to WaSMS's gateway instead of WATI's API connection. If you're on the official WhatsApp Business API through WATI and want to keep that exact setup, note that WaSMS's default approach uses number pairing rather than the official API — talk to your team about which approach fits your compliance needs before switching.
Message history doesn't transfer automatically between platforms, this is a WhatsApp/Meta limitation, not specific to either tool, so plan the cutover for a natural break point, like end of month, rather than mid-campaign.