SleekFlow is an omnichannel inbox for WhatsApp, Instagram and more, with Flow Builder journeys, and AI agents from its Pro plan. If you're looking elsewhere, the right alternative depends on the job: sending campaigns, a sales team working chats by hand, or letting an AI answer. Here are six, with figures from each vendor's own pricing page.
Figures last checked 9 November 2026 on each vendor's own pages
It depends on the job. For a sales team that works chats, calls and email by hand, respond.io, from $99 a month. For WhatsApp campaigns, WATI from $69 a month, Interakt from $55 with unlimited agents, or AiSensy, which has a free plan with the WhatsApp API. For Instagram comment-to-DM, Manychat from $17. If the job is an AI answering customers, Aivastark includes 5,000 AI credits in its $39 Starter plan.
The biggest difference is how each one charges for the AI: in the plan, as an add-on, or as a separate product.
| Product | Best for | How the AI is billed | What the AI costs | Paid plans from | Free plan |
|---|---|---|---|---|---|
 SleekFlow (the one you're leaving) | WhatsApp marketing with a team inbox | Plan per month by contacts and seats, WhatsApp fees through a prepaid wallet | AI agents from SleekFlow Pro, $139 a month | $69 a month (Essential, where offered) | No; 7-day Pro trial, no card |
 respond.io | Sales teams working chats, calls and email by hand | Plan per month by users and contacts, AI credits included, then $15 per 1,000 | AI Agents from respond.io Growth, $199 a month | $99 a month | No; 7-day trial |
 WATI | WhatsApp broadcasts and Shopify order flows | Inbox plan per month, AI agent (Astra) priced separately, message fees resold | Astra from $99 for 5,000 credits, on WATI Pro or Business | $69/month ($49 in Pakistan) | No; 7-day trial (Astra has a free tier for web chat) |
 Interakt | Unlimited agents, campaigns and a sales CRM | Plan per month with unlimited agents; AI Agents an add-on; message fees resold | $74.99/month AI Agents add-on | $55/month ($12 for Instagram only) | No; two-week trial, no card |
 AiSensy | Starting WhatsApp broadcasts cheaply, with a free plan | Plan per month plus add-ons; message fees resold | $50/month for 1,000 AI messages | $45/month | Yes, with the WhatsApp API |
 Manychat | Instagram and TikTok comment-to-DM growth | Per active contact a month, with a fee for each extra contact | AI included from Manychat Pro ($39/month) | $17/month ($14 billed yearly) | Yes, 25 active contacts a month |
 Aivastark (our product) | An AI that answers customers, included in a flat plan | Flat monthly plan, AI replies included | $39 for 5,000 replies | $12/month | Yes, 300 replies a month, no card |
Each product's figures come from its own pricing page, checked in the month shown on its card; the sources are listed on each head-to-head. Aivastark's figures come from the plan table the pricing page reads. Product names and logos belong to their owners and are shown only to identify the products compared; no affiliation or endorsement is implied.
Pick by the job you need done. Every card links to a full head-to-head with the sources.
Best for
Sales teams working chats, calls and email by hand
A mature shared inbox for human sales and support teams, with VoIP, WhatsApp Calling and Messenger calls, broadcasts and workflows, from $99 a month.
No free plan, and AI Agents start on respond.io Growth at $199 a month; AI credits past the plan's allowance cost $15 per 1,000.
Aivastark vs respond.ioChecked October 2026Best for
WhatsApp broadcasts and Shopify order flows
WhatsApp broadcasts and template campaigns, COD confirmation and abandoned-cart flows for Shopify, and WhatsApp calling, from $69 a month.
The AI agent, Astra, costs from $99 for 5,000 credits on top of a WATI Pro or Business plan.
Aivastark vs WATIChecked October 2026Best for
Unlimited agents, campaigns and a sales CRM
Unlimited agents and contacts on every plan, WhatsApp campaigns, Shopify order flows and a sales CRM, from $55 a month.
The AI Agents are a $74.99 monthly add-on on top of the plan.
Aivastark vs InteraktChecked October 2026Best for
Starting WhatsApp broadcasts cheaply, with a free plan
A free plan that includes the WhatsApp API and a blue-tick application, and paid plans from $45 a month.
WhatsApp only, and AI is a $50 monthly add-on for 1,000 AI messages.
Aivastark vs AiSensyChecked October 2026Best for
Instagram and TikTok comment-to-DM growth
Comment-to-DM automations on Instagram and TikTok, broadcasts and marketing flows, from $17 a month.
It bills per active contact, so the bill grows with the number of people you talk to each month; AI comes with Manychat Pro at $39 a month.
Aivastark vs ManychatChecked October 2026Best for
An AI that answers customers, included in a flat plan
The AI replies come with the plan: Starter at $39 a month includes 5,000 AI credits and answers on your website, WhatsApp, Instagram, Messenger, Telegram and email, in 80+ languages with Arabic among them, then hands off to your team. The website chatbot has a free plan.
It sends no broadcasts or template campaigns, has no phone line and no Dubai office. If those are the job, pick a tool above.
See pricingSleekFlow is the stronger choice when campaigns, many channels and a local presence are the job. Stay if you:
Every tool here runs on Meta's WhatsApp Business Platform, and Meta charges for business messages whichever one you pick. SleekFlow takes them from a prepaid wallet, WATI, Interakt and AiSensy resell the message fees, respond.io passes them through at cost, and with Aivastark Meta bills your own WhatsApp Business account directly.
SleekFlow has the strongest local presence of these: an office in Dubai's DIFC, prices in dirhams and UAE data residency options. Aivastark answers in Arabic and English on WhatsApp, Instagram and your website, without a UAE office or phone line.
AI customer support for UAE businessesMeta prices WhatsApp messages by the customer's country and the kind of message. Our UAE guide lists Meta's current per-message rates in dirhams and dollars, and how each kind of tool passes them on.
WhatsApp Business API pricing in the UAEAivastark includes AI replies in its plans: Starter at $39 a month comes with 5,000 AI credits. On SleekFlow, AI agents start on SleekFlow Pro at $139 a month. AI Agents start on respond.io Growth at $199 a month, WATI's Astra costs from $99 for 5,000 credits on top of a Pro or Business plan, Interakt's AI Agents are a $74.99 monthly add-on, AiSensy charges $50 a month for 1,000 AI messages, and Manychat includes AI from Manychat Pro at $39 a month.
To start, Manychat (from $17 a month, billed per active contact) and AiSensy (a free plan with the WhatsApp API, paid plans from $45). For an AI that answers WhatsApp, Aivastark's Starter plan is $39 a month with 5,000 AI credits; its Solo plan covers the website widget only. Meta's message fees come on top with every tool.
No. Meta charges for business messages whichever tool you use. SleekFlow uses a prepaid wallet, WATI, Interakt and AiSensy resell the fees, respond.io passes them through at cost, and with Aivastark Meta bills your own WhatsApp Business account directly.
If you want a local office and prices in dirhams, SleekFlow itself fits best. respond.io suits a sales team working chats by hand, from $99 a month. Aivastark answers in Arabic and English on WhatsApp, Instagram and your website, with AI replies included from its $39 Starter plan, without a UAE office.