Comparison with prices
5 SleekFlow alternatives in 2026, with the price each one publishes
About CertuAI: CertuAI is the AI that answers a small business's WhatsApp, Instagram and Messenger 24/7, with a built-in CRM, and is a Tech Provider on Meta's WhatsApp Business Platform. Paid plans start at US$ 75 a month, with no lock-in. Create my agent
SleekFlow is a shared inbox with AI agents for teams that sell and support customers on WhatsApp and other chat apps. This page shows what it costs on its own pricing page, which plan its AI agents start on, and five other tools with a published price.
Summary in 7 facts
- SleekFlow is a shared inbox with AI agents for teams that sell and support customers on WhatsApp and other chat apps.
- This page shows what it costs on its own pricing page, which plan its AI agents start on, and five other tools with a published price.
- Short answer SleekFlow starts at $69 a month for 3 users ($49 billed yearly), and its AI agents start on the Pro plan at $139 a month ($109 billed yearly) with 10 users and 500 monthly active contacts.
- Alternatives with a published price are CertuAI ($75 a month with 1,600 AI replies), respond.io (AI agents from $199 a month), Crisp ($95 a month per workspace), Kommo (AI agents from $35 per user a month, billed for 6 months) and Trengo (€349 a month).
- On 17 October 2026, sleekflow.io/en-us/pricing listed three plans with a price, in US dollars, for the United States.
- Essential is $69 a month, or $49 a month billed yearly ($588 a year), with 3 user seats and unlimited monthly active contacts.
- SleekFlow sells seats and monthly active contacts for a team inbox.
In numbers
| Number | What it means |
|---|---|
| $69 a month | Short answer SleekFlow starts at $69 a month for 3 users ($49 billed yearly), and its AI agents start on the Pro plan at $139 a month ($109 billed yearly) with 10 users and 500 monthly active… |
| $75 a month | Alternatives with a published price are CertuAI ($75 a month with 1,600 AI replies), respond.io (AI agents from $199 a month), Crisp ($95 a month per workspace), Kommo (AI agents from $35 per user… |
| $49 a month | Essential is $69 a month, or $49 a month billed yearly ($588 a year), with 3 user seats and unlimited monthly active contacts. |
| $139 a month | Pro is $139 a month, or $109 billed yearly ($1,308 a year), with 10 user accounts and 500 monthly active contacts to start. |
| $349 a month | Premium is $349 a month, or $279 billed yearly ($3,348 a year), with 10 user accounts and 1,000 monthly active contacts to start. |
| $20 | Extra monthly active contacts cost $20 per 100 on Pro, Premium and Enterprise, and the FAQ says they are added automatically, 100 at a time, when you go over in a month. |
| $15 a month | Extra seats cost $15 a month on Essential, $25 on Pro and Premium, and $29 on Enterprise. |
| $999 | The page also sells a one-time $999 dedicated onboarding, included in Premium. |
What is a good alternative to SleekFlow?
Short answer
SleekFlow starts at $69 a month for 3 users ($49 billed yearly), and its AI agents start on the Pro plan at $139 a month ($109 billed yearly) with 10 users and 500 monthly active contacts. Alternatives with a published price are CertuAI ($75 a month with 1,600 AI replies), respond.io (AI agents from $199 a month), Crisp ($95 a month per workspace), Kommo (AI agents from $35 per user a month, billed for 6 months) and Trengo (€349 a month). Prices checked on 17 October 2026.
Who makes this page. CertuAI makes this page, and CertuAI is on it, listed first for that reason and not because someone outside the company ranked it. Every fact about another company comes from that company's own page, with the address next to it. Where CertuAI is the weaker choice is written below, in its own section.
What SleekFlow costs
On 17 October 2026, sleekflow.io/en-us/pricing listed three plans with a price, in US dollars, for the United States. Essential is $69 a month, or $49 a month billed yearly ($588 a year), with 3 user seats and unlimited monthly active contacts. Pro is $139 a month, or $109 billed yearly ($1,308 a year), with 10 user accounts and 500 monthly active contacts to start. Premium is $349 a month, or $279 billed yearly ($3,348 a year), with 10 user accounts and 1,000 monthly active contacts to start. Enterprise is custom.
AI agents start on Pro. Essential lists an AI inbox co-pilot, which helps a person reply, and the page's own FAQ says Essential "doesn't include AI agents or Broadcast". "AI Agents" is on the Pro card. Premium adds "AI agents with integrations". The page also notes that Essential is still rolling out by country.
Three things can move the bill. Extra monthly active contacts cost $20 per 100 on Pro, Premium and Enterprise, and the FAQ says they are added automatically, 100 at a time, when you go over in a month. Extra seats cost $15 a month on Essential, $25 on Pro and Premium, and $29 on Enterprise. The page also sells a one-time $999 dedicated onboarding, included in Premium.
WhatsApp fees are separate. The page lists a WhatsApp Business API number hosting fee of $15 a month, with conversation rates "per SleekFlow rate card", and says broadcast message fees are charged separately and vary by template, country and volume.
The free trial is a 7-day Pro plan trial with no credit card, with 500 monthly active contacts. The page says plans and pricing vary by location: the prices above are the United States list.
SleekFlow and CertuAI, side by side
| What | SleekFlow | CertuAI |
|---|---|---|
| Lowest price, paid monthly | $69 a month (Essential, 3 users) | $75 a month (Start) |
| Lowest plan with an AI agent | Pro: $139 a month, or $109 billed yearly | Start: $75 a month |
| What you are paying for | Users and monthly active contacts | AI replies a month |
| Included with the AI plan | 10 users and 500 monthly active contacts to start | 1,600 AI replies, 1 WhatsApp number, 5 people |
| If you go over | $20 per 100 extra monthly active contacts, added automatically | Move up a plan: Pro $120 with 5,000 replies, Max $249 with 10,000 |
| People on the account | 3 on Essential, 10 on Pro and Premium; extra seats $15 to $29 a month each | 5 on Start, 10 on Pro, 25 on Max |
| CRM | HubSpot and Zoho from Premium, Salesforce on Enterprise | Included in every plan |
| Meta's WhatsApp fees | $15 a month number hosting, plus conversation rates per its rate card | Not mentioned on the pricing page; ask before you send campaigns |
| Free trial | 7 days of Pro, no credit card | 200 messages within 7 days, no card |
| Free plan | None on the pricing page | None |
On a phone, swipe the table sideways. SleekFlow: sleekflow.io/en-us/pricing. CertuAI: its pricing page. Prices checked on 17 October 2026.
The two prices do not measure the same thing
These plans are not directly comparable. SleekFlow sells seats and monthly active contacts for a team inbox. CertuAI sells AI replies. A plan that looks cheaper can cost more for you, and the other way round, depending on how many people answer, how many customers write in a month and how much the AI does.
CertuAI, per 1,000 AI replies. Plan price divided by the replies it includes: $46.88 on Start, $24.00 on Pro and $24.90 on Max. That is plain division of the numbers on its pricing page.
SleekFlow, per customer, under one stated assumption. Its pricing page prints no AI credit or AI reply limit for the Pro plan. The assumption is that there is none, so the only unit to divide by is the contact. Pro at $139 a month with 500 monthly active contacts is $0.28 per contact who writes or is written to in the month ($0.22 billed yearly). Each extra 100 contacts adds $20, or $0.20 each. Its own FAQ estimates that a business chatting with 20 different customers a day uses about 450 monthly active contacts.
That sum leaves things out on both sides. The SleekFlow price also pays for 10 users, broadcasts and the flow builder; on CertuAI, the price also pays for the CRM. And a contact can get one reply or fifty in a month. Use it to see what each company counts, not as a quote.
When SleekFlow is the better choice
- You have a team answering together. Pro and Premium include 10 user accounts, with an omnichannel inbox, a flow builder and dashboards. That is what the product is built around.
- You pay by customer, not by reply. If a few hundred customers each send many messages a month, a price per active contact can cost less than a price per reply.
- You need many channels. The page says all messaging, email and calls channels are included on every plan, with 10 channels on Pro and unlimited on Enterprise.
- You sell online. Its plan table lists Shopify, VTEX, a WhatsApp catalog and Stripe payment links.
- You already use HubSpot, Zoho or Salesforce. HubSpot and Zoho are on Premium and Salesforce on Enterprise, next to Zapier, Make and an API from Pro.
- You need company controls. Role-based access control and multiple workspaces are on Premium; PII masking and SLAs on Enterprise.
When CertuAI fits better
- You want the AI agent in the first plan. On CertuAI it is in Start at $75 a month. On SleekFlow it starts on Pro at $139.
- You do not want to count contacts. CertuAI's pricing page lists AI replies, WhatsApp numbers and people. It lists no charge per contact.
- You want the CRM in the same price. Every CertuAI plan includes one. On SleekFlow, connecting HubSpot or Zoho starts on Premium.
Where CertuAI falls short
- No free plan. After the 200-message trial within 7 days you choose a paid plan, and the lowest one is $75 a month.
- No public review ratings. CertuAI has no rating on a review site to show you. You have to judge it by trying it.
- A monthly reply limit. Start covers 1,600 AI replies a month. A busy number needs Pro or Max.
- WhatsApp first. CertuAI is built around WhatsApp, with Instagram and Messenger next to it. Its pricing page lists no connection to help desks or sales tools such as Zendesk, Salesforce or HubSpot.
- US dollars only. Prices are in US dollars, so check that your card accepts dollar payments.
5 alternatives to SleekFlow, one by one
CertuAI is first because CertuAI makes this page. The others are in no ranked order. Each has facts read on that company's own page, with the address.
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1. CertuAI
An AI agent that answers your customers on WhatsApp by itself, for owners of small businesses. Start $75 a month (1,600 AI replies, 1 WhatsApp number, 5 people), Pro $120 a month (5,000 AI replies, 3 WhatsApp numbers, 10 people) and Max $249 a month (10,000 AI replies, 3 WhatsApp numbers, 25 people). A CRM is included in every plan, and Instagram and Messenger messages are answered on every paid plan. Every new account starts with a trial: the AI answers up to 200 customer messages within 7 days of connecting WhatsApp, whichever comes first. The price follows the number of AI replies a month, not the number of seats. See CertuAI plans and prices.
CertuAI makes this page. Source: certuai.com/pricing, checked on 17 October 2026.
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2. respond.io
A shared inbox for teams on WhatsApp and other chat apps. Starter is $99 a month for 5 users ($79 billed yearly) and its AI agents start on Growth, at $199 a month ($159 billed yearly) with 10 users and 1,000 monthly active contacts. WhatsApp fees from Meta are not included in any plan.
Source: respond.io/pricing, checked on 17 October 2026.
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3. Crisp
A shared inbox with a website chat widget, priced as a flat rate per workspace and not per conversation. It has a free plan with 2 seats. WhatsApp Business is part of the omnichannel inbox on the Essentials plan: $95 a month per workspace, with 10 seats and $25 of AI credits included, which Crisp describes as around 450 automated conversations.
Source: crisp.chat/en/pricing, checked on 17 October 2026.
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4. Kommo
A sales CRM with WhatsApp inside, sold per user and billed for 6 months. Base is $25 per user a month ($150 per user for 6 months) with AI reply suggestions. AI agents, up to 3, start on Advanced at $35 per user a month ($210 per user for 6 months).
Source: kommo.com/pricing, checked on 17 October 2026.
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5. Trengo
A shared inbox for email, WhatsApp, Instagram and Facebook, priced in euros. Boost is €349 a month on monthly billing (€299 on annual billing) with 10 users and 500 conversations a month. Pro is €599 a month with 20 users and 1,500 conversations.
Source: trengo.com/prices, checked on 17 October 2026.
How we checked
We opened each company's own page on 17 October 2026 and wrote down what it said, with the address. We did not use review sites, sales calls or older lists. We did not convert any currency: $ always means US dollars, and a price in euros stays in euros.
Some pages open on yearly billing and some on monthly billing. Each price above says which one it is. Where a page shows different prices in different countries, we say so and quote the standard list.
Prices change. If you are reading this months from now, open the addresses below before you decide anything.
Questions people ask
How much does SleekFlow cost?
On 17 October 2026 its pricing page for the United States listed Essential at $69 a month ($49 billed yearly) with 3 users, Pro at $139 a month ($109 billed yearly) with 10 users and 500 monthly active contacts, and Premium at $349 a month ($279 billed yearly) with 10 users and 1,000 monthly active contacts. Enterprise is custom. Prices vary by country.
Does SleekFlow include AI agents in the Essential plan?
No. Its own FAQ says Essential does not include AI agents or Broadcast. Essential has an AI inbox co-pilot that helps a person reply; AI agents start on Pro, at $139 a month or $109 billed yearly.
Is there a cheaper alternative to SleekFlow with an AI agent?
By monthly price, yes. CertuAI includes the AI agent in its Start plan at $75 a month with 1,600 AI replies, and Kommo has AI agents from $35 per user a month on a 6-month bill. They are not the same product as SleekFlow: SleekFlow Pro is a team inbox with 10 users, so compare what each plan includes before you compare the price.
Does SleekFlow charge for WhatsApp messages?
Its pricing page lists a $15 a month hosting fee per WhatsApp Business API number, conversation rates per its rate card, and broadcast message fees charged separately by template, country and volume.
Does SleekFlow have a free plan?
Its pricing page shows no free plan. It has a 7-day trial of the Pro plan with no credit card. CertuAI has no free plan either: it has a 200-message trial within 7 days, and then you choose a paid plan.
Who wrote this comparison, and is it paid?
CertuAI wrote it, and CertuAI is one of the options on the page, listed first for that reason. Nobody paid to be included and no link here earns a commission. Every fact about another company comes from that company's own page, with the address shown, and was checked on 17 October 2026.
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What SleekFlow costs on its own pricing page, 5 alternatives with a published price, and when SleekFlow is the better choice. Checked 17 October 2026.
About CertuAI: CertuAI is the AI that answers a small business's WhatsApp, Instagram and Messenger 24/7, with a built-in CRM, and is a Tech Provider on Meta's WhatsApp Business Platform. Paid plans start at US$ 75 a month, with no lock-in. Create my agent