There is no single "best" WhatsApp chatbot — it comes down to whether you want to build it yourself or have it built for you. ManyChat and Tidio suit hands-on owners on a budget; Landbot and respond.io suit marketing and sales teams; a done-for-you managed assistant (such as NZT Digital, from £50/month per assistant with no build fee) suits owners who want it built, wired to their systems, and run for them.
The main options at a glance
| Option | Type | Typical price (UK) | Best for |
|---|---|---|---|
| ManyChat | DIY platform | Free → ~$29/mo (WhatsApp tier) + Meta fees | Owners building it themselves; social/sales |
| Tidio | DIY platform | Free → ~$49/mo; AI add-on extra | Small support teams |
| Landbot | DIY platform | ~€40 → €200+/mo (WhatsApp Pro) | Marketing & lead-gen flows |
| respond.io | Inbox + automation | From ~$79/mo | Teams managing many chats |
| WATI | WhatsApp-focused SaaS | From ~$49/mo + fees | SMBs wanting WhatsApp-only tooling |
| Agency build | Done-for-you | £1,500–£15,000 build + £75–£1,000/mo | Larger firms with budget |
| NZT Digital | Done-for-you, managed | £50/mo per assistant, no build fee | Owners who want it built & run for them |
DIY platforms (build it yourself)
Tools like ManyChat, Tidio, Landbot and WATI give you a drag-and-drop builder and a monthly subscription. They are genuinely cheap to start, and fine if you enjoy building flows and have time to maintain them. The catches: the WhatsApp features usually sit on a higher tier, Meta’s per-message fees are extra, and you own the building, the wiring to your systems, and the upkeep. Many small businesses sign up, build half a bot, and quietly let it lapse.
Marketing & inbox platforms
respond.io and similar shine when you have a team fielding lots of conversations and want a shared inbox with automation on top. They are powerful, but priced and designed for teams, and they still leave the "make it actually do my job" part to you.
Done-for-you agencies
Agencies will build you a bespoke WhatsApp chatbot — and charge accordingly, typically a four- or five-figure build fee plus a monthly retainer. If you have the budget and a high volume of enquiries, that can be worth it. For most small firms it is a big upfront commitment for something they cannot easily change later.
Done-for-you, managed assistants
This is the lane NZT Digital sits in, and it is deliberately different: we build the assistant, connect it to your real prices, diary and payments, and run it for you — for a flat £50/month per assistant, with no build fee. The other deliberate difference is focus: most tools and agencies only do customer-facing bots. We lead with internal/operational assistants that help the owner and staff (price lookups, payment links, job dispatch, internal answers), and point them at customers when you want. More on that choice in our internal vs customer-facing guide.
How to choose
- Want it cheap and don’t mind the work? A DIY platform (ManyChat, Tidio).
- Have a team drowning in chats? An inbox platform (respond.io, WATI).
- Big budget, bespoke, high volume? An agency build.
- Want it built, connected and run for you, fast and flat-priced? A managed assistant (NZT Digital).
Frequently asked questions
What is the best WhatsApp chatbot for a UK small business?
There is no single best — it depends on whether you want to build it yourself or have it built for you. ManyChat and Tidio suit hands-on owners on a budget; Landbot and respond.io suit marketing and sales teams; a done-for-you managed assistant (such as NZT Digital, from £50/month per assistant) suits owners who want it built, connected to their systems, and run for them.
What is the cheapest WhatsApp chatbot?
DIY platforms start free or around £15/month, but WhatsApp features usually unlock on higher tiers and Meta’s per-message fees are extra. The cheapest fully-managed route is a flat monthly assistant with no build fee.
Do I need the WhatsApp Business API for a chatbot?
Yes — an automated assistant on a business number runs on the official WhatsApp Business Platform. Most platforms and agencies set this up for you.