Send unlimited WhatsApp messages with images, videos, PDFs and personalised text all from a simple Windows desktop app. No API, no coding, no monthly surprises. Pay once yearly and start sending within minutes of purchase.
Windows 7, 8, 10 & 11 supported · Plans from ₹2,999/yr incl. Tax
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All plans include immediate download after payment, free updates, and support over mail and chat. No hidden fees pay once yearly, use all year.
Single PC Plan
Multiple PC Plan (2PC Plan)
50 PC Plan
Every Whatso plan comes with the full suite of bulk WhatsApp sending tools. Pick the plan that fits your volume and number of PCs all the core features are yours from day one.
Send hundreds to thousands of personalised WhatsApp messages in one campaign. Upload contacts, write once, and Whatso delivers to every recipient automatically.
Smart delay controls, human-like sending patterns, and number rotation keep your WhatsApp account safe. Included across all plans no extra setup required.
Upload your existing contact list from any spreadsheet instantly. Whatso reads CSV and Excel files without any reformatting or technical steps.
Verify which contacts are active WhatsApp users before sending. Stop wasting messages on invalid numbers and maximise your delivery rate every campaign.
Address every recipient by their first name using simple variables. Personalised messages receive significantly more replies and engagement than generic broadcasts.
Watch your campaign send in real time. See delivered counts, pending messages, and reply counts live from the Whatso dashboard no refresh needed.
No technical skills needed. Purchase your plan, download instantly, and be sending bulk WhatsApp messages in under 5 minutes.
Select the Standard, Professional, or Enterprise plan that suits your business. Complete your secure payment the process takes under 2 minutes and all plans include tax.
⏱ Under 2 minutesYour download link is sent instantly after payment. Save the Whatso installer (.exe) and run it installation completes in under 2 minutes on any Windows PC.
⏱ Immediate downloadOpen Whatso and enter your registered email and mobile number. Enter the OTP verification code your license activates instantly and the software is fully unlocked.
📱 OTP verificationUpload your contact list (CSV or Excel), type your message, and hit Send. Whatso handles the rest delivering your messages with anti-ban protection automatically.
🚀 First message in under 5 minWe know downloading new software requires trust. Here's exactly why 25,000+ businesses have safely downloaded and used Whatso.
Whatso installer is scanned and verified clean. No malware, no spyware, no bundled software. What you download is exactly what you get.
Whatso does not access, store, or share your WhatsApp contacts or messages. Your data stays on your device at all times.
Over 25,000 businesses across India and worldwide have downloaded and actively use Whatso for their WhatsApp marketing every day.
Our support team is available to help with installation, setup, and any questions. Reach us via WhatsApp, email, or our help centre.
This is why millions of businesses are switching from email and SMS to WhatsApp bulk messaging.
Real feedback from businesses who started with the free download and never looked back.
"I downloaded the free version just to test it. Within 20 minutes I had sent messages to 100 of my customers and got 23 replies. Upgraded to paid the same day."
"The installation was super easy, barely 5 minutes. The software is clean, simple, and does exactly what it says. My festive sale campaign reached 8,000 customers in under 10 minutes."
"I was sceptical of free software but Whatso genuinely impressed me. No hidden fees during the trial, full features work perfectly, and customer support replied in minutes when I had a question."
Everything you need to know before downloading Whatso's WhatsApp bulk sender.
Yes Whatso is completely free to download and install. Your free account includes 100 WhatsApp messages at no cost, with no credit card required. Once your 100 messages are used, you can upgrade to a paid plan to send more.
Whatso supports Windows 7, Windows 8, Windows 10, and Windows 11 both 32-bit and 64-bit versions. The installer file is approximately 45 MB. A Mac version is not currently available.
No. Whatso works without the official WhatsApp Business API. It connects directly to your existing WhatsApp account personal or Business with no API setup, no Meta developer account, and no monthly API fees.
Whatso includes built-in anti-ban protection from your very first send. Smart message delays, human-like sending patterns, and number rotation are all active during your free trial. Follow our recommended delay settings and your account stays protected.
The free version (100 messages) supports text messages and basic personalisation. Rich media images, videos, PDFs, audio, and documents are available on paid plans. Upgrade at any time from inside the software.
Paid plans remove the 100-message limit. Most businesses send between 5,000 and 15,000 messages per campaign. There is no hard cap use the built-in delay controls for best delivery rates, or enable Turbo Mode for maximum speed.
The Whatso installer is clean, virus-free, and does not contain any bundled software or malware. It is the same software used by 25,000+ businesses worldwide. If your antivirus flags it, this is a common false positive with new software installers you can safely allow it.
Your free account and the software itself never expire. However, the free tier is limited to 100 messages total. Once those are used, you'll need a paid plan to continue sending. There is no recurring free allowance the free tier is a one-time trial.
Whatso is widely considered the best free WhatsApp bulk sender for small businesses in India. It requires no API, no technical setup, and works on any Windows PC. The free trial includes 100 real messages more than enough to see immediate results before upgrading.
Our support team is available via WhatsApp, email, and our Help Guides at whatso.co/faq. We respond to all installation queries within 24 hours on business days. Most installation issues are resolved in under 10 minutes.
Join 25,000+ businesses already using Whatso. Choose your plan, download instantly after payment, and send your first campaign in minutes.
Windows 7, 8, 10 & 11 · No API needed · Immediate download · Free updates included