Comparing Certainly and Siena AI? Both are AI Agents & Chatbots and E-commerce Support tools in the directory, which is why buyers put them on the same shortlist. Below is a side-by-side look at how they price, what they integrate with, and when each is the better fit, so you can pick on the facts rather than either vendor's own sales page.
| Attribute | Certainly | Siena AI |
|---|---|---|
| Pricing | Per resolution · €500/mo (2,000 conversations) | Per resolution · $750/mo + $0.90/ticket |
| Founded | 2017 | 2022 |
| Categories | AI Agents & Chatbots E-commerce Support | AI Agents & Chatbots E-commerce Support |
| Integrations | Zendesk Shopify Anthropic Claude OpenAI Google Gemini Zapier | Gorgias Zendesk Shopify Recharge Klaviyo Kustomer |
Certainly is Copenhagen's contribution to the AI agent wave, and its accent shows in the best ways: European data residency, GDPR seriousness, and commercial terms designed to reduce buyer risk rather than maximize lock-in. Founded in 2017 as BotXO and later rebranded, it has deployed more than a thousand agents that have handled over 50 million queries, for brands including Ticketmaster, GANNI, Tiger of Sweden, Quad Lock, and Entain.
The product builds autonomous agents that resolve conversations end to end across web chat, Meta channels, SMS, and email, with more than 200 integrations into help desks and commerce stacks like Zendesk and Shopify. Its most distinctive technical stance is model flexibility: agents can run on Anthropic's Claude, OpenAI's GPT, or Google's Gemini, so you are not married to one AI vendor's pricing or politics, and deployments can go live in as little as two weeks.
Pricing is published in euros and billed per conversation rather than per seat: Starter at 500 euros a month for 2,000 conversations, Pro at 1,250 for 10,000, Enterprise from 2,500. The buyer-friendly quirk is that every plan starts as a three-month pilot cancelable on a week's notice, an arrangement that says the product expects to earn its renewal.
Certainly fits European brands, and anyone selling into Europe, who want conversation-based pricing, data kept in the EU, and freedom to choose the underlying model. American enterprises chasing the biggest names will look elsewhere first; e-commerce and consumer brands with EU exposure should look here early.
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Siena AI sells empathy at scale, which sounds like marketing until you watch most support bots talk. Founded in 2022 by Romanian entrepreneurs Andrei Negrau and Lisa Popovici, whose previous startup was SMS-commerce company Cartloop, Siena builds autonomous customer service for e-commerce and consumer brands with an unusual obsession: sounding like the brand, not like a template. Its AI personas carry a defined voice and tone, and brands like Spanx, HexClad, Kitsch, Prose, and MUD WTR use them to resolve orders, subscriptions, and returns across email, chat, SMS, and social DMs without the customer feeling the switch to a robot.
Under the personality is a full commerce-support engine. Siena sits on top of the help desk you already run, Gorgias, Zendesk, Kustomer, or Gladly, and plugs into Shopify, Recharge, Klaviyo, and the rest of the DTC stack to take real actions. It claims up to 80 percent automation with CSAT going up rather than down, and rounds the platform out with automated QA scoring, a voice-of-customer topic explorer, and an AI shopping agent that recommends products mid-conversation.
The company raised a $4.7 million seed led by Sierra Ventures in 2023 and publishes its pricing shape: a $750 monthly platform fee plus about $0.90 per automated ticket, with volume pricing quoted.
Choose Siena when brand voice is a genuine business asset, the common case for DTC brands whose customers chose them partly for the vibe. If you just need cheap deflection, simpler tools cost less; if every customer touch is brand equity, Siena is the one built around that belief.
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