Short answer: Interakt, WATI, and AiSensy all run on the same official WhatsApp Business API but are built for genuinely different jobs. WATI centers on a shared team inbox for sales and support conversations, AiSensy leans into high-volume broadcast campaigns and ecommerce cart-recovery automation, and Interakt sits in between with a strong focus on commerce-catalog and Shopify-style store integration. The right one depends on whether the core need is conversation management, campaign volume, or commerce automation.
1. Why these three specifically, and why not just the free app
For a business coordinating more than one person on WhatsApp, or sending anything resembling a campaign rather than a one-to-one reply, the free WhatsApp Business app runs out of capability fast: no shared inbox, no automation rules, no approved broadcast templates at scale. All three of these platforms are built on top of the official, Meta-approved WhatsApp Business API, which is what unlocks team collaboration, chatbot automation, and compliant broadcast messaging in the first place.
2. What each one is actually built around
- WATI centers on a shared team inbox: multiple agents working from one WhatsApp number with conversation assignment, internal notes, and basic chatbot flows, closest in spirit to a helpdesk built specifically for WhatsApp.
- AiSensy leans heavily into broadcast campaign volume and ecommerce automation, abandoned cart recovery, order updates, and promotional broadcast sequences, aimed at businesses running WhatsApp as a marketing channel more than a support channel.
- Interakt sits between the two, with a strong emphasis on commerce catalog integration and store-platform connections, suited to a D2C brand wanting WhatsApp tied closely into the actual buying and order-status flow.
| Platform | Strongest For | Weaker Fit For |
|---|---|---|
| WATI | Shared team inbox, sales/support conversations | High-volume, campaign-first broadcast strategy |
| AiSensy | Broadcast campaigns, cart recovery, promotional volume | Teams that mainly need a simple shared inbox |
| Interakt | Commerce catalog and store integration | Businesses without an ecommerce catalog use case |
3. The question that actually decides it
Start from the job the WhatsApp number is actually doing today: if it's primarily a sales and support conversation channel worked by multiple people, WATI's inbox-first design fits best. If it's primarily a broadcast and re-engagement channel for an ecommerce store, AiSensy or Interakt fit better, with the choice between those two coming down to how central catalog/commerce integration is versus raw broadcast volume and pricing.
4. What to check before choosing
- Actual monthly conversation and broadcast volume, since pricing on all three scales with usage and message type.
- Whether the use case is primarily conversational (support/sales) or primarily broadcast (campaigns, cart recovery).
- How deeply the tool needs to integrate with an existing store platform, if commerce is the core use case.
For how this fits into a broader D2C lifecycle strategy alongside email, see my re-engagement email sequence guide and welcome email sequence framework, and for the broader role this kind of channel decision sits inside, see what a D2C marketing consultant actually does. My marketing automation service helps pick and configure the right WhatsApp API platform for your actual message volume.
FAQ
Do I need the official WhatsApp Business API, or is the free WhatsApp Business app enough?
The free WhatsApp Business app is fine for a single person manually messaging a small volume of customers, but it has no team collaboration, no automation, and no broadcast capability at scale, so any business coordinating multiple people or sending campaign-style messages needs a WhatsApp Business API solution built on top of one of these platforms instead.
- The free app works for low-volume, single-person manual messaging only.
- Team collaboration, automation, and broadcast campaigns all require an API-based platform.
Will using one of these tools get my WhatsApp number banned for spam?
Not if messaging stays within WhatsApp's own policies, opted-in contacts, approved message templates for outbound campaigns, and reasonable frequency, since all three platforms operate through the same official, Meta-approved API and enforce these same underlying rules; bans happen from policy violations, not from which specific platform is used to send the messages.
- All three tools run on the same Meta-approved API and enforce the same underlying policy rules.
- Bans come from opt-in and template-policy violations, not from the choice of platform.