One Platform. Every Channel.
WhatsApp & Email — Automated.
Send personalized WhatsApp messages and emails to thousands of leads, manage multi-channel campaigns, and track every response — all from one powerful dashboard.
Everything you need to automate outreach
WhatsApp and Email — managed from one dashboard. Built for sales teams, marketers, and entrepreneurs who want to reach more people without the manual effort.
Bulk WhatsApp Messaging
Send personalized messages to thousands of leads at once via QR or Meta Business API. Variable substitution makes every message feel one-on-one.
Bulk Email Campaigns
Send rich HTML or plain-text emails to your entire lead list. Connect any SMTP provider — Gmail, Outlook, or custom — in seconds.
Smart Campaign Scheduling
Schedule WhatsApp and email campaigns in advance or set recurring sends — daily, weekly, or monthly. Set it once and never miss a follow-up.
Lead & Group Management
Organize contacts into groups, import via CSV, filter by status. One contact database feeds both your WhatsApp and email campaigns.
Rich Message Templates
Build reusable templates with dynamic variables for WhatsApp (QR & Meta API) and email (HTML + plain text). One template library, every channel.
Two-Way Chat Inbox
Receive and reply to inbound WhatsApp messages in a unified inbox. Full conversation history, unread badges, and fast replies.
Webhook & API Access
Trigger WhatsApp messages from Zapier, Make, n8n, or any HTTP client. Generate a webhook URL or API key and integrate in minutes.
Analytics & Insights
Track delivery rates, campaign performance, and engagement across WhatsApp and email. Interactive charts show you what works.
Loved by businesses
Real results from real customers.
“OneToMany transformed how we reach customers. We went from 50 manual messages a day to automated campaigns hitting 5,000+ people weekly. Sales doubled in three months.”
“The campaign scheduler and template engine save us 20+ hours a week. The analytics dashboard gives exactly the insight we need. Best WhatsApp automation tool we've used.”
“We use OneToMany for our entire customer retention strategy. The two-way inbox means we never miss a reply. Setup was painless and the support team was outstanding.”
Simple, transparent pricing
No hidden fees. Cancel anytime. Scale as you grow.
Perfect for small teams testing WhatsApp and Email outreach.
- 100 messages / month
- 1 active campaign
- Up to 50 leads
- WhatsApp via QR code
- Email via SMTP
- Basic message templates
- Email support
For growing businesses that need multi-channel automation at scale.
- 10,000 messages / month
- Unlimited campaigns
- 5,000 leads
- WhatsApp QR + Meta Business API
- Email campaigns (HTML + plain text)
- Advanced templates + variables
- Campaign scheduling
- Webhook & API access
- Analytics dashboard
- Priority support
Enterprise-grade multi-channel automation for high-volume senders.
- Unlimited messages
- Unlimited campaigns
- Unlimited leads
- WhatsApp Meta Business API
- Unlimited email sending
- Custom templates
- Recurring campaigns
- Webhook & API access
- Advanced analytics
- Dedicated support
Built by marketers,
for marketers
OneToMany was born out of frustration. Our founders spent hours manually copying and pasting WhatsApp messages to leads, missing follow-ups, and losing track of conversations.
We built the tool we wished existed — one that handles the repetitive work while keeping your messaging personal. Today, hundreds of businesses use OneToMany to send millions of messages every month, without sacrificing the human touch.
Common questions
Everything you need to know before getting started.
Get in touch
Have a question or want to explore a custom plan? We'd love to hear from you.