heysteff vs. Chatsell: try it today or book a call.
heysteff is an AI platform for customer support and sales across WhatsApp, Instagram, Messenger, Gmail and Shopify; Steff is the AI agent that runs it. Chatsell is an Argentine platform of AI agents and a CRM for WhatsApp, with a hands-on implementation and a very strong catalog of integrations for the Southern Cone. Both go after the same problem, with very different ways in.
◆ in one sentence
Chatsell gets you running in two to four weeks after a consultation; heysteff lets you try it this afternoon, with no card and no call.
The most practical difference isn't price: it's how you start
Chatsell works with an assisted implementation. Its main call to action is a free 30-minute consultation, and its pricing page states a turnkey rollout of 15 to 30 days depending on complexity, with setup, integrations and training included in the plan. For a company that wants someone else to take charge, that is an advantage, not a cost. Other pages on their site give shorter timelines, from a few days to one or two weeks, so ask them about your specific case.
heysteff is self-service: you sign up, connect a channel, and the Free plan gives you fifty conversations a month with no card, so you can see whether it works for you before paying. Nobody sets it up for you, and for a complex operation that means work on your side. Choose based on what you have more of: time, or patience to wait.
Pricing, compared from the entry point
Chatsell publishes Business at 400 USD a month and Premium at 450, both with an additional cost per conversation of 0.08 and 0.07 USD, and the included volume is set when they quote you. They don't charge per user or agent, and they bill campaigns per message sent.
heysteff publishes Starter at 149 USD with 500 conversations included, Pro at 299 with 3,000 and Max at 549 with 5,000, with overage per conversation and no per-user cost. Both bill per conversation and neither per seat; the difference is the starting point, and that heysteff publishes the volume included in each plan.
Where Chatsell is the better choice
In Southern Cone ecommerce integrations, clearly. They publish native connections with Mercado Libre, Tiendanube, Shopify, WooCommerce, Prestashop, OpenCart and several more Argentine store platforms, plus local ERPs such as Tango and DuxSoftware. heysteff has native Shopify, and everything else goes through the tool builder: it works, but you have to set it up.
Also if your sales live on Mercado Libre: answering listing questions is something they cover on their Premium plan, and heysteff doesn't. If you'd rather have a team configure everything and train your staff, their implementation is included in the price. And if you want to resell the platform under your own brand, they have a white-label program for agencies.
Where heysteff does things Chatsell doesn't publish
Copilot mode (reply suggestions for the human agent while they lead the conversation) isn't published by Chatsell. They do have takeover, which is something else: the bot switches off when a person steps in, but it doesn't suggest what to answer.
They also don't publish product reviews or email as an inbox channel. And on flows they go the opposite way on purpose: they position themselves against rigid decision trees, while heysteff offers a visual flow builder whose differentiator is an AI conversation step inside the flow, so the script doesn't break when the customer goes off it.
One more practical detail if your team works in English: Chatsell's site is published only in Spanish, while heysteff's site and product are available in Spanish and English.
| Factor | heysteff | Chatsell |
|---|---|---|
| How you start | Self-service signup: Free plan with 50 conversations/month, no card | 30-minute consultation; stated rollout of 15 to 30 days. Free plan not published |
| Entry price | Free 0 USD · Starter 149 USD/month (500 conversations) | Business 400 USD/month + 0.08 USD per conversation; included volume set in the quote |
| Per-user charge | No extra cost per user | They state 0 USD extra per user or agent |
| Implementation | You set it up yourself; no setup fee | Setup, integrations and training included in the plan |
| Channels | WhatsApp (official and unofficial), Instagram, Messenger, Gmail and Shopify | WhatsApp (QR, Coexistence and official API), Instagram DM and comments, Messenger, Mercado Libre questions (Premium plan), web widget |
| Email as a channel | Yes, Gmail in the same inbox | Not published |
| Ecommerce integrations | Native Shopify; the rest through the tool builder | Broad and native: Mercado Libre, Tiendanube, Shopify, WooCommerce, Prestashop and more |
| Visual flow builder | Yes, with an AI conversation step inside the flow | They position themselves against rigid flows; visual builder not published |
| Abandoned cart recovery | Native with Shopify, over WhatsApp | Yes, currently stated for Shopify and Tiendanube, over WhatsApp |
| In-chat payments | Generates the payment link and waits for payment confirmation | Sends the payment link and verifies the transaction in MercadoPago; bank transfers are validated by your team |
| Product reviews | Yes, its own Shopify app that asks for them over WhatsApp | Not published |
| Copilot mode | Yes: suggestions for the human agent and automatic bot pause | Human takeover yes; agent suggestions not published |
| Site languages | Spanish and English | Spanish only |
| Origin | Chile, operating across Latin America | Córdoba, Argentina; they serve Argentina and Latin America |
Frequently asked questions
Can I try either one without talking to a salesperson?
With heysteff, yes: the Free plan gives you 50 conversations a month on one channel, with no card, and you sign up on your own. Chatsell doesn't publish a free plan or self-service signup; its call to action is a 30-minute consultation, and its pricing page states a turnkey implementation of 15 to 30 days depending on complexity. They are two different ways in: try it yourself this afternoon, or book a call and wait for them to get it running.
Which one is cheaper?
It depends on volume, and it's worth comparing the entry points honestly. Chatsell publishes two plans, Business at 400 USD a month and Premium at 450, both plus a per-conversation cost (0.08 and 0.07 USD), with the included volume set in the quote. heysteff publishes Starter at 149 USD a month with 500 conversations included and Pro at 299 with 3,000, with overage per conversation. At high volumes the gap narrows; the entry point is quite different, and Chatsell's price includes an implementation that heysteff leaves to you.
Which one has more ecommerce integrations?
Chatsell, by a wide margin. They publish native integrations with Mercado Libre, Tiendanube, Shopify, WooCommerce, Prestashop, OpenCart and several more stores from the Argentine market. heysteff has native Shopify and connects the rest (WooCommerce, TiendaNube, ERPs, CRMs) with the tool builder over HTTP APIs and webhooks. If your store runs on a less common Southern Cone platform, Chatsell very likely has it ready, and in heysteff you'd have to configure it.
◆ next step
Try heysteff on the Free plan, no card required, and compare it against your own operation before you book anything.
Also useful: compare heysteff with Whaticket, ManyChat and WATI, or read about automation flows and copilot mode.