AiSensy, Interakt, Wati and DoubleTick are well-known WhatsApp platforms. They are built on the official WhatsApp Business API and sold as monthly subscriptions. Whatsen is built on the same API but sold differently: you pay once and own it.
How these platforms charge
| Platform | How it is sold | What can raise the bill |
|---|---|---|
| AiSensy | Subscription plans, with a discount for yearly billing | Higher plan tiers, extra agents, chatbot features, message charges |
| Interakt | Subscription plans based on the number of active contacts | More active contacts, higher plans, message charges |
| Wati | Subscription plans priced in US dollars, with a user limit per plan | Higher plans, extra users, add-ons, message charges |
| DoubleTick | Positioned as a WhatsApp sales CRM, with plans on request or listed by tier | Higher tiers, usage, message charges |
These descriptions come from each provider's public pages and independent reviews as of October 2026. They may be out of date by the time you read this.
What all monthly platforms have in common
- You pay a subscription for as long as you use the platform.
- Meta's per-message charges apply on top of the subscription. Some providers add their own markup, so ask for the rate card.
- Features such as AI replies, chatbots or extra users can sit in higher plans or be sold as add-ons.
- Your data and your setup live on the provider's systems.
How an owned platform differs
| Monthly platforms | Whatsen | |
|---|---|---|
| Platform fee | Recurring subscription | One-time payment, lifetime access |
| Updates | Part of the subscription | Lifetime free updates |
| Meta message charges | Through the platform, rates vary | Directly to Meta at Meta's rate, zero markup |
| Where it runs | Provider's servers | Your own server, in your own Meta account |
| AI agents, flows, automations | Depends on plan or add-on | All included |
| Setup | Usually self-serve | Done by our team, with 1 month of tech support |
Questions to ask any provider
- What is the total I pay each month with my number of agents and contacts?
- What is the per-message rate for marketing, utility and authentication messages, and how does it compare with Meta's rate?
- Which features are in my plan and which cost extra?
- Who owns the Meta account and the phone number?
- Can I take my number and my data with me if I leave?
- What happens to the price when my volume doubles?
Which should you choose?
A monthly platform is a reasonable choice for a short trial or very low volume. If you plan to use WhatsApp for years with a team, an owned platform removes the recurring platform fee. Compare the totals using the method in owning vs renting. When you want to see how Whatsen is set up, get the details.