The native broadcast feature looks like the answer until you hit two hard walls: 256 contacts per list, and silent delivery failures for anyone who hasn't saved your number. Here's the honest comparison.
When WhatsApp introduced broadcast lists, the cap was set at 256 contacts per list. It has never changed. You can create multiple lists, but each one tops out at 256 and you have to re-add contacts manually. For a business with even a modest customer base of 2,000 people, that's eight lists to maintain — and no shared state between them.
Here's the silent killer: WhatsApp only delivers a broadcast message to a recipient if that recipient has saved your phone number. If they haven't, the message sends successfully from your side — you see a double tick on your end — but it never appears in their chat. There is no error, no warning. You think the campaign reached 256 people. It might have reached 80.
This is by design: WhatsApp doesn't want strangers spamming users via broadcast. But for legitimate businesses with opted-in customers who simply haven't saved the brand number, it's a deliverability disaster.
"Blast" is the industry shorthand for sending bulk messages to a larger list, typically via a desktop tool that uses your WhatsApp Web session to send one-to-one messages in sequence. Unlike a broadcast, a blast:
The catch: a poorly configured blast will get your number banned in hours. Identical messages, no delays, and unsaved cold contacts are the three account-killers. A good blast tool engineers all three away.
| Capability | Native Broadcast | Desktop Blast Tool (e.g. WhatsAll) |
|---|---|---|
| Max recipients per send | 256 | Unlimited (paced) |
| Reaches unsaved contacts | No | Yes |
| Personalization variables | No | Yes ({{Name}}, spintax) |
| Scheduling | No | Yes |
| Live delivery telemetry | No | Yes (SENT / FAIL / RATE) |
| Attachments | Yes (one at a time) | Yes (drag & drop) |
| Cost | Free | One-time license |
If you're sending an occasional update to under 200 customers who all have your number saved (your loyalty group, a small WhatsApp Business contact base), native broadcast is fine. The friction below 200 contacts isn't worth tooling around.
The moment you're maintaining multiple 256-lists, copy-pasting the same message multiple times, or your reach feels much smaller than your list size — broadcast has stopped working for you. That's where a desktop bulk sender comes in. Read the full bulk messaging guide or grab the free WhatsAll demo to see how it works.
