ReplyKit vs SleekFlow: the honest comparison for small businesses in Southeast Asia
SleekFlow is a popular omnichannel platform across Malaysia, Singapore and Hong Kong. ReplyKit is a WhatsApp AI agent that answers and books. One costs from about $149 a month before message fees. The other costs $29 with no message fees. Here is what you get for each.
Quick answer
Pick SleekFlow if you sell across WhatsApp, Instagram, Messenger and web chat, run broadcast campaigns, and have a team that needs a shared inbox and flow automation on the official WhatsApp API.
Pick ReplyKit if WhatsApp is your main lead channel and you want an AI agent that answers, qualifies and books appointments from $29 a month, live in about 15 minutes, with no Meta approval, no seats and no per-message fees.
At a glance
| Feature | ReplyKit | SleekFlow |
|---|---|---|
| What it is | AI sales and appointment agent for WhatsApp | Omnichannel messaging and automation platform |
| Channels | WhatsApp only | WhatsApp, Instagram, Messenger, web chat, SMS and more |
| Starting price | $29 a month | Pro AI from about $149 a month (RM 469 monthly, RM 379 annual in Malaysia) |
| Users included | One workspace login, no seat pricing | 3 on Pro AI, 10 on Premium AI |
| Contacts | Unlimited, not metered | Monthly active contact allowance, add-ons above it |
| Meta per-message fees | None | Yes, plus WhatsApp API hosting, charged separately |
| Connection | Official WhatsApp Business Platform (Meta Cloud API) | Official WhatsApp Business API |
| Setup time | About 15 minutes | Hours to days for WhatsApp verification |
| AI agent | Every plan, grounded on your content | Included on AI tiers, built in Flow Builder |
| Voice notes and photos | Understood by the agent | Varies |
| Appointment booking | Built in | Via flows and integrations |
| Broadcasts | No, by design | Yes |
| Free trial | 7 days, no card needed | 7 days on Pro AI |
What SleekFlow is
SleekFlow is an omnichannel conversation platform with strong roots in Southeast Asia. You get a shared inbox across WhatsApp, Instagram, Messenger and more, a visual Flow Builder for automation, broadcast campaigns, and AI agents on its AI tiers. It is an official WhatsApp Business API provider, which brings the green tick and Meta-sanctioned messaging, and also brings Meta's per-message fees and API hosting charges on top of the subscription.
What ReplyKit is
ReplyKit is an AI employee for your WhatsApp number. It answers customers within seconds using your website, PDFs and Q&A, asks qualifying questions, books a real slot in your calendar, and escalates to you when a human is needed. It keeps a simple CRM current on its own. You connect by connecting your number through Meta's sign-in, so there is nothing to apply for and nothing to pay Meta.
See what the agent does, the use cases it fits, or message the live demo on the ReplyKit home page.
Pricing in USD and RM
SleekFlow
- Pro AI: about $149 a month in USD. In Malaysia: RM 469 monthly or RM 379 a month billed annually. 3 users, a starting allowance of monthly active contacts, unlimited AI usage on the tier.
- Premium AI: about $349 a month in USD. In Malaysia: RM 1,419 monthly or RM 1,179 a month billed annually. 10 users, larger contact allowance, advanced AI agents with integrations.
- Enterprise AI: custom.
- WhatsApp Business Platform hosting and per-message fees are charged separately.
ReplyKit
- Starter, $29 (about RM 125 at typical rates): 1 number, 1 agent, 1,000 AI replies, booking, CRM, voice notes, human takeover.
- Growth, $49: 3 numbers, 5 agents with their own knowledge bases, 5,000 AI replies, follow-up nudges.
- Pro, $99: 15 numbers, unlimited agents, 20,000 AI replies, priority support, onboarding call.
- No seats, no contact metering. Extra replies $10 per 1,000, never expire.
Every plan is listed on the ReplyKit pricing page, and every plan starts with a 7-day free trial.
AI agents: flow-driven vs content-driven
SleekFlow's AI agents live inside its Flow Builder, which is a real strength if you want AI as one step in a bigger journey, with hand-offs to campaigns, tags and integrations. It rewards a team member who likes building automations.
ReplyKit's agent is content-driven. Give it your website URL, PDFs and a few Q&A pairs and it answers only from those, in over 30 languages, saying so when it does not know. It transcribes voice notes, understands photos, offers real appointment slots, updates the CRM and logs the questions it could not answer so you can teach it with one click. There is no flow to design, and nothing to maintain when your prices change beyond updating the source.
Setup and risk
SleekFlow (official API)
- Meta Business verification and display name approval. Plan for hours to days.
- Templates needed for outbound messages outside 24 hours, with Meta fees.
- Stable, sanctioned, green tick eligible, safe for broadcasts.
ReplyKit (official platform, done for you)
- Connect your number through Meta's sign-in and go live in minutes, keep using WhatsApp on your phone.
- Meta fees only on templates, no templates.
- Official platform. Connected through Meta's sign-in, so there is no linked-device restriction risk. ReplyKit answers people who message you and sends reminders, follow-ups and broadcasts through approved templates to contacts who opted in. Keep the number in your WhatsApp Business app, or use a dedicated one if the business runs on personal WhatsApp.
- We answer "Will my number get banned?" plainly on the home page, and the terms spell out the risk before you connect.
Who should pick which
Choose SleekFlow if you
- Sell on Instagram and Messenger as much as on WhatsApp.
- Run broadcasts and campaigns to a customer list.
- Have a team of 3 to 10 people who need a shared inbox and reporting.
- Need the official API for compliance or the green tick.
Choose ReplyKit if you
- Get your leads on WhatsApp and want every one answered in seconds.
- Book appointments and want them booked automatically, with reminders.
- Want a working agent today for $29, not a platform project.
- Are happy to use a dedicated number.
Our verdict
SleekFlow is a platform you build on. ReplyKit is a worker you switch on. If you have a team and several channels, SleekFlow earns its price. If you have a WhatsApp number and unanswered leads, ReplyKit solves that today for a fraction of the cost, and you can add a platform later if you outgrow it. If you want to see the ReplyKit side for yourself, the home page has a live demo you can message right now.
Frequently asked questions
How much does SleekFlow cost in Malaysia?
As of September 2026, Pro AI is listed at RM 469 a month (RM 379 billed annually) for 3 users and Premium AI at RM 1,419 a month (RM 1,179 billed annually) for 10 users. WhatsApp API hosting and per-message fees are extra.
Is ReplyKit cheaper than SleekFlow?
Yes, for WhatsApp-only use. ReplyKit starts at $29 with the AI agent included and Meta fees only on templates. SleekFlow includes channels and features ReplyKit does not have, such as Instagram, Messenger and broadcasts.
Does SleekFlow require the official WhatsApp Business API?
Yes, with Meta verification and per-message fees. ReplyKit runs on the same official platform, connected through Meta's sign-in from the dashboard in minutes, with Meta fees only on templates.
Which one books appointments in the chat?
ReplyKit has a built-in scheduler with real slots, reminders and .ics export. SleekFlow handles booking through Flow Builder and external calendar integrations.
Try the agent on your own business
Paste your website, connect your number through Meta's sign-in, message it. 7-day free trial, cancel before it ends and pay nothing.
SleekFlow is a trademark of its owner. ReplyKit is an independent product and is not affiliated with or endorsed by SleekFlow, Meta or WhatsApp. Competitor prices and plan details were taken from sleekflow.io (USD and Malaysia pages) in September 2026 and may have changed. RM conversions of ReplyKit prices are approximate. If you spot an error, email hello@replykit.app and we will fix it.