CYBEX WhatsApp Bulk Sender & AI Assistant is a web-based WhatsApp marketing and customer-reply platform. Upload your contacts from Excel or CSV, send personalised bulk WhatsApp campaigns with safe, human-like pacing, and let an AI sales chatbot answer incoming chats by text or voice note. It is built in Faisalabad, Pakistan, and works for businesses in Pakistan and worldwide because it runs in any browser. Create a free account at whatsapp.cybex.com.pk.

All features of the WhatsApp Bulk Sender
Bulk WhatsApp campaigns
- Upload contacts from an Excel or CSV file (a sample file is included).
- Personalise each message with merge fields such as the customer name.
- Spintax support, so each message can vary slightly in wording.
- Human-like pacing: random gaps between messages, batch pauses and a per-number 12-hour sending limit.
- Automatic opt-out handling, so people who reply with a stop word are not messaged again.
- Link more than one WhatsApp number to an account.
AI sales chatbot and shared inbox
- The AI assistant replies to incoming chats using your business description, your goal and the knowledge files you upload (PDF, Word or text).
- It captures leads and hands the chat over to a person when needed.
- It pauses itself when a human replies from the phone.
- A shared inbox for the whole team, with saved quick replies.
Voice replies
- Understands a customer’s voice note and can answer with a voice note.
- Free self-hosted voices and speech recognition, plus cloud voice options.
- Voice Studio to record sentences and train your own voice.
Teams, packages and payments
- Sign in with Google or email, with admin approval for new users.
- Team members with manager and staff roles and separate workspaces.
- Packages with message and AI-reply quotas and an add-on for extra AI replies.
- Upgrade requests, PDF receipts and email notifications.
- Pay by bank transfer, JazzCash or Easypaisa with proof upload, or by card through Stripe.
Admin and help
- Admin pages for users, packages, payments, email, AI voice and Stripe.
- A server status page showing memory, CPU, disk and capacity.
- A built-in help centre with a guide, FAQ and support chat.
Who uses WhatsApp bulk messaging and AI chatbots
Shops, online sellers, real estate agents, clinics, schools, training institutes, event organisers and service companies in Faisalabad, Lahore, Karachi, Islamabad and other cities, and businesses abroad that serve Pakistani and international customers over WhatsApp.
Use it responsibly
Send messages only to people who agreed to hear from you and always honour opt-outs. The tool works with WhatsApp Web, so WhatsApp can limit or ban numbers that send unwanted or too many messages. We cannot promise that a number will never be restricted. Keep the built-in limits and send relevant messages.
20 frequently asked questions
1. What is a WhatsApp bulk sender?
It is software that sends the same message, personalised per contact, to many people from a contact list instead of typing each message by hand.
2. Is the CYBEX WhatsApp Bulk Sender available in Pakistan?
Yes. It is built in Faisalabad, supports Pakistani payment methods such as JazzCash and Easypaisa, and has Urdu-friendly voice options.
3. Can I use it outside Pakistan?
Yes. It is a web app that runs in any browser, so businesses in the UAE, UK, Saudi Arabia, USA and other countries can use it with their own WhatsApp numbers.
4. How do I upload my contacts?
Upload an Excel or CSV file. A sample file shows the expected columns.
5. Can I personalise messages with the customer name?
Yes. You can insert the contact’s name and other fields, and use spintax so messages are not identical.
6. How many messages can I send?
Limits depend on your package and on the built-in per-number safety limit. Ask us on WhatsApp for current package details.
7. Will my WhatsApp number be banned?
We cannot guarantee that. The portal uses slow, human-like sending, batch pauses and opt-out handling to reduce risk, but WhatsApp makes the final decision. Message only people who expect to hear from you.
8. Does it use the official WhatsApp Business API?
No. It links your number through WhatsApp Web, like a computer session, rather than the paid official Cloud API.
9. What is the AI sales chatbot?
An AI assistant that answers incoming WhatsApp chats using your business information and uploaded documents, captures leads and hands over to a person when needed.
10. Which AI model does the chatbot use?
It works with any OpenAI-compatible AI service and defaults to Google Gemini. The admin can change the provider.
11. Can the chatbot answer voice notes?
Yes. It can listen to a customer’s voice note and reply with a voice note.
12. Can I upload my own price list or FAQ to the bot?
Yes. You can upload PDF, Word or text files as the bot’s knowledge.
13. What happens when a human needs to reply?
The bot can hand the chat to your team, and it pauses itself when a person replies from the phone.
14. Can my team use one account?
Yes. Add managers and staff, each working in their own workspace.
15. Can I link more than one WhatsApp number?
Yes. Several numbers can be linked to one account, each with its own sending limit.
16. How do opt-outs work?
If a contact replies with a stop keyword, they are marked as opted out and skipped in later campaigns.
17. How do I pay?
By bank transfer, JazzCash or Easypaisa with a payment proof upload, or by card through Stripe. You receive a PDF receipt.
18. Do I need to install anything?
No. You use it in your browser and link your WhatsApp by scanning a QR code or entering a pairing code.
19. Is my data private?
Each account works in its own workspace, and the portal has terms and a privacy policy. Do not share your login with people you do not trust.
20. How do I get started or get help?
Create an account at whatsapp.cybex.com.pk or message CYBEX on WhatsApp at +92 302 7833985.


See more CYBEX software products, or ask for pricing and a demo on WhatsApp.
