Last updated: July 2026
TL;DR
- WhatsApp broadcast software lets a business send one approved message to thousands of opted-in customers through the WhatsApp Business API, with segmentation, templates, and analytics the native app does not offer.
- Every tool charges twice. You pay the software subscription, and Meta bills marketing messages per send on top. Any comparison that ignores Meta's fees is hiding half your bill.
- The real differences are the meters. WATI meters seats, SleekFlow meters active contacts, Gallabox meters broadcasts and seats, AiSensy meters messages, Twilio is pure usage. Invent is $29 a month, usage-based, with no per-seat fees.
- The question nobody asks: what happens when customers reply? A broadcast is the start of hundreds of conversations. Tools built for blasting leave your team to answer alone; tools built for conversations answer with you.
Broadcasts are the highest-impact feature in WhatsApp for business: one well-timed campaign reaches your whole customer base in the app they check most. But the WhatsApp Business app caps broadcast lists at 256 contacts and gives you no analytics, no templates, and no automation. Past that point you need broadcast software built on the WhatsApp Business API. Here are the six worth comparing, with verified pricing.
What is WhatsApp broadcast software?
WhatsApp broadcast software is a platform that connects to the WhatsApp Business API so a business can send approved template messages to large opted-in audiences at once. Beyond raw sending, the good ones handle audience segmentation, message templates with personalization variables, scheduling, delivery and read analytics, and, critically, the flood of replies a good campaign generates.
Two facts apply to every tool on this list:
1. You need opt-in. Meta requires documented consent before a business sends marketing messages, and repeated blocks kill your sender quality rating.
2. Meta charges per marketing message, at rates that vary by destination country, on top of whatever the software costs. Replies you send inside the 24-hour customer service window are free.
The 6 best WhatsApp broadcast tools compared
Six broadcast tools, four different meters. The column that matters most is the last one.
1. Invent
Invent is a no-code AI platform where broadcasts and conversations live in the same place. You build campaigns with a template editor (variables, live preview), send to segments of your contact list, and then the part the other tools skip: your AI agent answers the replies, from your own knowledge base, in your brand voice, with human handoff when it matters.
- Win: No per-seat fees and one simple price: Business is $29 a month including $29 in usage credits, and the bill scales with what your campaigns actually send, not with your team size. Broadcast history is saved per contact, so every campaign becomes context for the next conversation. Replies get answered by the same AI agent that runs your WhatsApp, Instagram, web, and email support.
- Challenge: If all you want is raw bulk sending at six-figure monthly volumes with regional rate optimization, a volume-tiered India-market tool may squeeze the per-message cost lower.
Building a WhatsApp campaign template in Invent: variables and Meta review samples on the left, the customer's-eye preview on the right.
2. WATI
WATI is one of the most established WhatsApp-first platforms for SMBs, built squarely on the Business API.
- Win: Mature broadcast tooling with generous caps: 15,000 broadcasts a month on Growth ($49 a month, 3 users), unlimited on Pro ($99 a month, 5 users).
- Challenge: The meter is seats. Extra users cost $24 a month on Pro and $69 on Business ($299 a month), so the bill scales with team size, and it is WhatsApp-only.
3. AiSensy
AiSensy is an India-based broadcast platform with an unusual promise: unlimited users on every plan, including a free-forever tier.
- Win: You pay per message rather than per seat (in India, about ₹1.09 per marketing message, roughly $0.013), which suits big teams running lean campaigns.
- Challenge: Pricing and rates are India-centric, and the AI chatbot that would answer your replies is a paid add-on at ₹2,500 to ₹3,500 a month (roughly $30 to $42).
4. SleekFlow
SleekFlow is an omnichannel commerce platform strong in Asia-Pacific, with WhatsApp broadcast campaigns as one channel among several.
- Win: Free plan to test (50 monthly active contacts, 3 users), and a visual flow builder on the paid AI plans.
- Challenge: Two meters stack: per-user pricing (Pro AI at HK$399 per user, minimum 3 users) plus monthly-active-contact tiers, so costs need careful modeling as your list grows.
5. Gallabox
Gallabox is a conversation-focused WhatsApp platform popular with Indian and Gulf SMBs.
- Win: Clear tiering with AI credits included per plan; Basic runs about $89 a month billed annually with 10,000 broadcasts a month.
- Challenge: Basic has a hard 3-user cap and broadcast volume is tiered, so growing teams jump tiers quickly ($197, then $377 a month).
6. Twilio
Twilio is the developer route: API infrastructure for WhatsApp messaging, not a campaign product.
- Win: Pure usage pricing at $0.005 per message in or out, no monthly platform fee, and infrastructure-grade reliability at any volume.
- Challenge: There is no campaign UI, no segmentation, no inbox. Your developers build the broadcast layer, which makes it powerful for engineering teams and impractical for everyone else.
The cost everyone forgets: Meta's fees
Whatever software you pick, Meta bills marketing template messages per send, at a rate set by the recipient's country. That means:
- A "free plan" is never free at campaign scale; the messages themselves cost money.
- Comparing subscriptions without comparing message categories misleads you. Utility messages and service replies inside the 24-hour window are cheap or free; marketing templates are the expensive kind.
- The way to lower real cost per outcome is not a cheaper subscription. It is turning more replies into revenue, which is a conversation problem, not a sending problem.
How to choose broadcast software
- Count your senders. Per-seat meters (WATI, SleekFlow, Gallabox) punish big teams; usage meters (Invent, AiSensy, Twilio) do not.
- Look past the send. Ask each vendor: when 300 people reply to my campaign, who answers them? If the answer is "your agents, with a shared inbox," you are buying a blasting tool and staffing the follow-up yourself.
- Check the AI's price tag. AI answering is an add-on at AiSensy, credit-metered at Gallabox, plan-gated at SleekFlow. At Invent it is the product.
- Test with a real segment before any annual commitment. AiSensy and SleekFlow have free tiers, WATI and Gallabox have trials, and Invent's Business plan is $29 a month with usage credits included. Send one genuine campaign before you commit.
What we're building at Invent
At Invent, we think a broadcast is not a blast; it is the opening line of hundreds of conversations. That is why WhatsApp Campaigns at Invent come wired to everything else: a template editor with variables and live preview, segments built from real contact properties, per-contact broadcast history, and an AI agent that answers every reply from your own knowledge, then hands off to your team when a human should take over. Auto follow-ups re-engage the people who went quiet.
A campaign in Invent: every recipient tracked from sent to delivered to read, per contact.
You can send your first WhatsApp broadcast with Invent for $29 a month: no per-seat fees, usage credits included, live in an afternoon.
Send the message. Then let your agent handle the two hundred that come back.
FAQs
What is the best WhatsApp broadcast software for business?
It depends on your meter. Invent is $29 a month, usage-based with no per-seat fees, and answers replies with an AI agent; WATI offers unlimited broadcasts from $99 a month; AiSensy prices per message with unlimited users; SleekFlow fits omnichannel Asia-Pacific teams; Gallabox suits Indian and Gulf SMBs; Twilio is the developer option at $0.005 per message.
Can I send WhatsApp broadcasts without the Business API?
Only to 256 contacts at a time through broadcast lists in the WhatsApp Business app, and each recipient must have your number saved. Real campaign volume, templates, and analytics require the WhatsApp Business API through software like the tools above.
How much does WhatsApp broadcast software cost?
Subscriptions on this list run from $29 a month (Invent, usage-based) to $299 a month (WATI Business), with free tiers at AiSensy and SleekFlow. On top of every subscription, Meta charges per marketing message sent, at rates that vary by country.
Do people need to opt in to receive WhatsApp broadcasts?
Yes. Meta requires documented opt-in for marketing messages, and high block rates damage your sender quality rating, which can cut your messaging limits.
What happens when customers reply to a broadcast?
Replies open free 24-hour service windows, and they are where the revenue is. Most broadcast tools route replies to a shared inbox for your team to answer manually; Invent's AI agent answers them from your knowledge base and hands complex ones to a human.
Related
- WhatsApp Business Broadcast: Complete Guide
- How to Send WhatsApp Broadcasts with Invent
- Best WhatsApp Business Automation Tools & Strategies
- The $45B WhatsApp Business Economy
One campaign, a thousand conversations. Pick the software that shows up for the second half.
