ReplyKit vs Voiceflow: a design-first studio for building and deploying conversational agents across chat and voice, against a ready-made WhatsApp agent with booking and CRM
Voiceflow started as a tool for designing voice assistants and became a studio for building AI agents of any kind, loved by product and CX teams for its canvas and collaboration. ReplyKit is a single, finished agent for WhatsApp and websites with the business features already attached. A small business comparing them is really asking: do I want to design an agent or run one?
Quick answer
Choose Voiceflow if you have a team that will design conversation flows on a canvas, test them collaboratively and deploy to web, voice or messaging through integrations, and you are comfortable with quoted or usage-based pricing (Voiceflow no longer lists plan prices: agencies get a free trial with usage-based billing, businesses request a quote; WhatsApp requires an integration on the official API with Meta fees). Choose ReplyKit if you want a WhatsApp agent that answers from pasted text, books appointments, sends reminders, keeps a CRM and includes a website assistant, set up by a non-technical owner, from $29 with 1,000 AI replies included and no Meta fees. ReplyKit pairs by QR, which is instant but not sanctioned by Meta.
Side by side
Rival prices and features are as listed on the vendor's public pricing page when we checked in October 2026 and are summarised in US dollars; they change, so confirm on the vendor's page. ReplyKit's figures are current. We sell ReplyKit, and we have tried to say plainly where the other tool is the better choice.
| ReplyKit | Voiceflow | |
|---|---|---|
| Built for | Business owners running WhatsApp | Product, CX and design teams building agents |
| Setup | Text, instructions, QR; an afternoon | Design on the canvas; hours to weeks |
| Plans | $29, $49, $99 a month | No published prices; free trial and usage-based billing for agencies, pricing on request for businesses |
| AI pricing | Included | Usage-based or quoted; not listed publicly |
| QR pairing | Through integrations on the official API; Meta fees | |
| Voice agents | No | Yes |
| Booking, reminders, CRM | Built in | Build or integrate |
| Collaboration and versioning | Single workspace per account | Strong: shared canvas, comments, versions |
| Number risk | Restriction possible | None on the official API |
Where Voiceflow wins
- Design and collaboration. A canvas several people can work on, with testing and versions.
- Voice. Phone and voice assistants, which ReplyKit does not do.
- Any channel through its integrations and API.
- Prototyping an agent concept before committing to a build.
Voiceflow's plan and credit details are on its pricing page; pricing is quoted or usage-based, so ask for a figure at your expected volume before comparing. For teams deciding between building and buying, see buying vs building an agent.
Where ReplyKit wins
- Running, not designing. The agent, inbox, booking and CRM exist; you add knowledge.
- WhatsApp-native behaviour: hand-over, pacing, reminders, teach loop, in one place.
- AI and replies included with no credits to watch.
- Website assistant included that hands visitors to WhatsApp; see website assistant and WhatsApp agent.
The honest caveat on our side, repeated in every comparison: ReplyKit pairs with your number as a linked device. It is instant and free of Meta fees, and it is not sanctioned by Meta, so a number can be restricted. Rivals on the official API do not carry that risk and pay Meta per message instead. The trade-off is in API vs QR pairing and our ban guide.
ReplyKit plans: Starter $29 (1 number, 1 agent, 1 website assistant, 1,000 replies), Growth $49 (3 numbers, 5 agents, 5 website assistants, 5,000 replies, follow-up nudges), Pro $99 (15 numbers, unlimited agents, 20,000 replies). Extra replies are $10 per 1,000. AI is included and there are no Meta fees. Details in what it costs.
Who should choose which
- Team designing a bespoke agent, possibly with voice: Voiceflow.
- Owner wanting WhatsApp answered and booked: ReplyKit.
- Prototyping before a custom build: Voiceflow.
- Running a service business without a builder: ReplyKit.
Frequently asked questions
Can Voiceflow run a WhatsApp agent?
Through an integration on the official WhatsApp API, with Meta fees and verification. It is a build, not a switch.
Does ReplyKit do voice?
No. For voice or phone agents, Voiceflow is the right tool.
Which is faster to go live?
ReplyKit, in an afternoon. Voiceflow depends on the scope of the design.
Does Voiceflow include booking and CRM?
Not built in; you integrate them. ReplyKit includes both.
Which is cheaper?
ReplyKit for a small business running WhatsApp. Voiceflow's free trial can suit a prototype; production pricing is quoted by sales or billed by usage.
WhatsApp-first, website included
AI replies in the plan, booking and CRM built in. 7-day free trial.
Sources and further reading
- WhatsApp Business Messaging Policy · opt-in, opt-out and prohibited-use rules every business must follow
- ReplyKit, Will WhatsApp ban my number for automation? · our own account of the risk and the limits we enforce
ReplyKit is an independent product and is not affiliated with or endorsed by Meta or WhatsApp. This article is general guidance for running a small business, not legal, financial or regulatory advice.