We built Wassuply because
our numbers kept getting banned.

What is Wassuply?

Wassuply is a Windows and Mac app for warming up WhatsApp numbers and running cold outreach without the API. It drives normal WhatsApp and WhatsApp Business through WhatsApp Web sessions, so there is no WhatsApp Business API, no Meta approval, no message templates and no per-message fees.

You connect your numbers by QR code and they run side by side in one app. Every number gets its own isolated session, browser fingerprint and optional proxy, so there is no logging out and in to switch accounts. New numbers warm up on autopilot by chatting with each other and with other Wassuply users' numbers in Warm-up Pods. Health & Risk reads each number's age and history, sets a plan (days to warm, a safe daily limit, a first campaign size) and keeps a live 0-100 ban-risk score. When a number is ready, you send cold campaigns from a CSV with merge fields, spintax, AI-personalised messages or voice notes, at a human pace.

The app is free to download; warming and sending need a licence. The AI features run on your own Claude, ChatGPT or DeepSeek key, as explained on the Wassuply AI page. For logos, product facts and descriptions you can quote, see the Wassuply press kit.

Why we built Wassuply

It started with a problem we couldn't solve with anything that existed. We were running WhatsApp outreach and kept losing numbers. Account after account was banned in its first campaign, sometimes within the first 50 messages.

The tools we tried all made the same assumption: that your numbers were ready to send. They blasted a list at machine speed from a number that was days old, with identical text to every contact, and left you to replace the banned number afterwards. Warm-up was treated as your problem, not theirs.

The WhatsApp Business API wasn't the answer for cold outreach either. It needs Meta approval, every first message has to be a pre-approved template, and you pay per message. For people starting conversations with new contacts, that never fit.

So we built the warm-up engine first: numbers chatting with each other in natural, non-repeating lines, with random gaps, only inside the hours you set. Then came everything around it: isolated sessions so numbers never share an identity, Health & Risk so you know when a number is ready, sending safety (random 30-90 second gaps, batches of 10, 1-5 minute breaks, blackout hours and daily caps), Smart Send to slow down at a risk score of 60 and pause at 80, and AI to write a different first message for every contact.

Who builds Wassuply

Wassuply was founded by Abdullah Ashraf, also known as Abu Hafs Abdullah. He is also the director of Koldconvert Ltd, a growth agency that brings marketing, AI, outbound, funnels, design and software under one roof, and he writes the guides on this site. Wassuply is part of the Koldconvert group. Follow Wassuply on LinkedIn, or Abdullah.

What Wassuply is not

• Not an official WhatsApp product. Wassuply is independent software and is not affiliated with or endorsed by WhatsApp or Meta.
• Not the WhatsApp Business API. There is no green tick and no template approval. If you need those, the API is the right tool.
• Not a ban guarantee. No tool can honestly promise you'll never be banned. Wassuply removes what gets numbers banned: cold numbers sending too early, robotic timing and identical messages.
• Not a free WhatsApp warmer. The download and the account are free. Warming and sending need an active licence.
• Not a cloud bot. Wassuply runs on your own Windows PC or Mac. Your campaigns, contacts and message history stay on your computer.
• Not AI-written warm-up. Warm-up chats use natural lines from 10 built-in chat packs or your own. The AI writes outreach messages, not warm-up chats.
• Not on Linux or phones. Wassuply runs on Windows 10 and 11 and on macOS 12 or later, not on Linux, Android or iPhone.

Wassuply product facts

Questions about Wassuply