Which is the right fit for your HubSpot stack?

Flowella turns your HubSpot forms into WhatsApp Flows and writes each completed one back as a HubSpot form submission. SleekFlow is an AI suite with an omnichannel inbox, broadcasts and AI agents across WhatsApp, Instagram, TikTok and more. Both connect to HubSpot. They’re built for different jobs.

Get started free Try a live Flow on WhatsApp (opens in a new tab)
Work out what each would cost you
Flo, the Flowella mascot, looking through a magnifying glass at two cards she holds side by side, one with a green tick

Flowella and SleekFlow at a glance

Checked 16 October 2026

Flowella

HubSpot forms as WhatsApp Flows

With HubSpot from
$79 a month, on Starter16
WhatsApp’s fees
Billed by Meta, at Meta’s rates17
WhatsApp Flows
Unlimited, on every plan16

SleekFlow

An AI suite for revenue-driving conversations

With HubSpot from
$279 a month billed yearly, on Premium1
WhatsApp’s fees
Billed by SleekFlow, at its own rate card23
WhatsApp Flows
On Enterprise, as a custom build4

The eleven things that matter.

Each line about SleekFlow links to SleekFlow’s own pages or its HubSpot Marketplace listing, checked on 16 October 2026. Where SleekFlow does more, the table says so.

Flowella and SleekFlow, line by lineShaded rows matter most if HubSpot is your system of record.
What matters Flowella SleekFlow
Your HubSpot forms become WhatsApp FlowsPick a form you already use: its fields, validation and labels carry over.
FlowellaYes.

Pick a HubSpot form and Flowella builds the Flow from it.19
SleekFlowNo.

WhatsApp Flows are a customised solution for Enterprise customers, built in Meta’s Business Manager with SleekFlow’s help.4
Completed Flows arrive as HubSpot form submissionsSo form-submission workflows, lead scoring and reports run as they do for web forms.
FlowellaYes.

Written back as a native form submission, with the answers on contact properties.18
SleekFlowPartly.

Submissions are stored in SleekFlow custom objects, and its Flow Builder can create or update HubSpot contacts and custom objects.45
WhatsApp Flows you can runHow many Flows each plan includes.
FlowellaYes.

Unlimited, on every plan.16
SleekFlowPartly.

On Enterprise only, as an early-access, customised solution.4
WhatsApp’s fees at Meta’s own ratesWho bills each message, and at what rate. Example: one marketing message to a UK number.
FlowellaYes.

Meta bills you directly, at its list rate of $0.0635. Flowella never marks it up; its own fee is per billable message over your plan’s allowance.1417
SleekFlowNo.

SleekFlow bills each message from credits you top up, at its rate card: $0.07303 for a UK marketing message, plus US$15 a month for each number.231
Send WhatsApp from HubSpot workflowsFlowella’s workflow actions need HubSpot Professional or Enterprise.
FlowellaYes.

Six workflow actions, such as Send WhatsApp Template, and four triggers, such as Form Completed.20
SleekFlowPartly.

Not from HubSpot’s workflow editor: a SleekFlow flow can start when a HubSpot field changes, then send the message.56
A shared inbox for repliesWhere your team reads and answers WhatsApp.
FlowellaYes.

The Flowella app inbox, or WhatsApp threads in the HubSpot conversations inbox through the Flowella channel.2221
SleekFlowYes.

SleekFlow’s omnichannel team inbox, on the web and in its mobile app, on every plan.1
Keep the WhatsApp Business AppCoexistence: the app and the platform share one number.
FlowellaYes.

Supported. Keep the app for one-to-one chats.23
SleekFlowYes.

Supported. Keep the app for chats; up to six months of history can be shared.7
Channels beyond WhatsAppInstagram, Messenger, TikTok and web chat in the same inbox.
FlowellaNo.

WhatsApp only, across one or more numbers in one account.24
SleekFlowYes.

Instagram, Messenger, TikTok, Telegram, LINE, WeChat, Viber, SMS, email, voice calls and live chat.8
CRMs and shops besides HubSpotFor teams who run more than one system.
FlowellaNo.

HubSpot is Flowella’s one integration today.25
SleekFlowYes.

Zoho CRM on Premium, Salesforce on Enterprise, and Shopify, VTEX and Google Sheets from Pro, as well as HubSpot.19
Chatbots and AI agentsAutomatic replies when no one is free.
FlowellaPartly.

Flows collect the answers, and a HubSpot workflow can hand the chat to Breeze Customer Agent.20
SleekFlowYes.

AgentFlow AI agents and Flow Builder automations, from Pro.101
A free trialTry it before you pay.
FlowellaYes.

14 days, up to 5,000 outbound messages, with no card for Flowella.1617
SleekFlowYes.

7 days of Pro, with no card. Pro doesn’t include HubSpot.1

Partly means the tool does some of this, as the line explains. Prices are in US dollars, before tax.

The same answers, two ways.

Ask three questions in a WhatsApp Flow and the answers land in HubSpot as properties, ready for a workflow. Ask the same three in a chat and you get messages someone has to read and retype. Try both and watch the record.

Sample dataNothing you type leaves this page.

Flo slotting small data cards into a blue filing drawer, the way a Flow files each answer as a property
Jen OkaforHubSpot contact record
Sample data
What they needenquiry_type
From the FlowWaitingSet by the form submission
From the chatWaitingNeeds someone to read it
Team sizeteam_size
From the FlowWaitingSet by the form submission
From the chatWaitingNeeds someone to read it
Emailemail
From the FlowWaitingSet by the form submission
From the chatWaitingNeeds someone to read it

Timeline

Flow: 0 of 3 properties setChat: 0 of 3 properties set

Two solid products.

SleekFlow is a good product, and in places it does more than Flowella. Here’s who each one is.

Flowella

Flowella turns HubSpot forms into WhatsApp Flows and writes each answer back to HubSpot. It’s from the team at Discover Digital, a HubSpot Platinum Partner.

Company
Flowella Limited, registered in the UK27
Built for
HubSpot, on every HubSpot plan, Free included18
WhatsApp Flows completed
100K+, by Flowella’s count29

SleekFlow

SleekFlow describes itself as an agentic AI platform that turns conversations into sales, with offices in Singapore, Hong Kong, Malaysia, Indonesia, Brazil and the UAE.

Company
Sleekflow Technologies Limited, with an address in Hong Kong12
In the UK
Trades as SleekFlow Technologies Company Limited12
Customers
7,000+ enterprises in 70 countries, by SleekFlow’s count11
Certified
SOC 2 Type II, ISO/IEC 27001:2022 and ISO/IEC 42001:202313

Three tools, three jobs.

Pick by the job you need done. HubSpot’s own WhatsApp channel is the third option, and for some teams it’s enough.

Flo pointing along one of three signposts, in green, sky blue and coral
  • Flowella

    Choose Flowella if you want WhatsApp answers as HubSpot data.

    • Your HubSpot forms should become WhatsApp Flows.
    • Answers should arrive as form submissions and properties, not chat text.
    • You want Meta to bill its fees to you directly, at its own rates.
    • Your team replies in HubSpot, or in a focused WhatsApp inbox.

    Sources19181721

  • SleekFlow

    Choose SleekFlow if you want AI agents across many channels.

    • Your team answers WhatsApp, Instagram, TikTok, WeChat and LINE in one inbox.
    • AI agents should answer and qualify customers around the clock.
    • You run Salesforce or Zoho as well as HubSpot, or sell through Shopify or VTEX.
    • Broadcasts and Flow Builder automations run your campaigns.

    Sources81019

  • HubSpot’s own channel

    Choose HubSpot’s own WhatsApp channel if inbox replies are enough.

    • You have Marketing Hub or Service Hub, Professional or Enterprise.
    • 1,000 template messages a month is enough, shared by all your connected WhatsApp Business accounts.
    • Your team replies from the conversations inbox.
    • Message details in conversation properties are all your workflows need.

    Source15

Questions teams ask.

Four questions HubSpot teams put to us, answered for both tools.

Can a completed WhatsApp form start a HubSpot workflow?

Flowella

Yes. Each completed Flow arrives as a native HubSpot form submission, with the answers on contact properties, so form-submission enrolment works as it does for web forms. Flowella adds a Form Completed trigger too. Workflows need HubSpot Professional or Enterprise.1820

SleekFlow

SleekFlow stores WhatsApp Flows submissions in its own custom objects, and its WhatsApp Flows come with Enterprise. Its HubSpot integration, on Premium and Enterprise, syncs contacts and lets Flow Builder create or update HubSpot contacts, so a workflow can enrol on those properties.451

Can our team reply from the HubSpot inbox?

Flowella

Yes. Connect the Flowella channel and WhatsApp threads land in the HubSpot conversations inbox, beside email, chat and calls. It needs Sales Hub or Service Hub, Professional or Enterprise, and HubSpot Credits may apply. The Flowella app inbox works on any plan.2122

SleekFlow

SleekFlow’s HubSpot integration syncs contacts and maps users, and its Marketplace listing describes selling and supporting in SleekFlow’s own inbox with CRM data beside the chat. Replies happen in SleekFlow, on the web or in its mobile app.561

Do we have to give up the WhatsApp Business App?

Flowella

No. Flowella supports coexistence: keep the app for one-to-one chats while Flows and templates run on the same number.23

SleekFlow

No. SleekFlow supports coexistence too: keep chatting in the WhatsApp Business App while SleekFlow’s automations and team inbox use the same number.7

What would a seven-person team sending 25,000 templates a month pay?

Flowella

Pro is $199 a month with 2,500 billable messages, then $0.04 each. Meta bills its own fees to you, at its list rate.1614

SleekFlow

HubSpot comes with Premium, at $279 a month billed yearly or $349 monthly, for 1,000 monthly active contacts and 10 seats, then $25 a seat. Messages are charged at SleekFlow’s rate card, and each WhatsApp number is US$15 a month.12

What it costs.

Both bills depend on your team and what you send. Set yours and every line shows its working and its source. Prices are in US dollars, before tax, as published on 16 October 2026.

Each template sent is one billable message for Flowella, and one message charge for SleekFlow.

Template type

Marketing: offers and campaigns. Utility: reminders and updates about something the customer started.

SleekFlow billing

Or start from an example

Rates are for messages to UK numbers. Meta and SleekFlow both price each message by the recipient’s country.

For 7 people and 25,000 marketing templates a month, SleekFlow is $581.75 a month less.

Flowella $2,686.50 a month, SleekFlow $2,104.75 a month, with every line below.

Flowella

Lower cost
Pro planStarter or Pro, whichever is lower
$199.00
Billable messages over the 2,500 included22,500 × $0.04
$900.00
Team of 7 peopleNo per-user pricing
$0.00
WhatsApp’s fees, billed by Meta25,000 × $0.0635
$1,587.50
Total a month
$2,686.50

SleekFlow

Lower cost
Premium plan, billed annuallyPremium, the first plan with HubSpot, at 1,000 monthly active contacts
$279.00
Per-message platform feeNone separate: SleekFlow’s rate card covers each message
$0.00
7 people, within the 10 included0 × $25.00
$0.00
Message charges, billed by SleekFlow25,000 × $0.07303Meta’s list rate for these messages: $1,587.50
$1,825.75
Total a month
$2,104.75

Not in either total: your HubSpot subscription, tax, SleekFlow’s US$15 a month for each WhatsApp number, and its higher Premium prices above 1,000 monthly active contacts, such as $329 for 2,000.1

From Flowella’s pricing and plans article, SleekFlow’s pricing page and its rate card from 1 October 2026, and Meta’s list rates from 1 October 2026, all checked on 16 October 2026.16171214

Ratings and reviews.

Both apps are rated on the HubSpot Marketplace. SleekFlow’s has a single rating so far, so read the reviews from teams doing the job you have.

SleekFlow on the HubSpot Marketplace

5

Out of 5, from 1 rating for SleekFlow’s HubSpot app. Checked on 16 October 2026.6

Read SleekFlow’s reviews on the HubSpot Marketplace (opens in a new tab)

Exceptional engagement platform that transformed our student conversion with 160% increase in same-day applications and 90% WhatsApp response rates.

Peter Hudson Peter HudsonDirector of Admissions, Brand & Customer Innovation, Oaklands CollegeHubSpot Marketplace integration Oaklands College

5/5

Flowella’s rating on the HubSpot Marketplace (opens in a new tab)

Straight answers.

Spotted something out of date? Tell us and we’ll check it and fix it.

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Is this comparison fair?

We’ve tried to make it so. Every fact about SleekFlow links to SleekFlow’s own pages or its HubSpot Marketplace listing, checked on 16 October 2026, and each price shows its working. SleekFlow does more than Flowella in places, such as channels beyond WhatsApp, AI agents and other CRMs, and the table says so. At higher volumes, the calculator can show SleekFlow costing less.

Can SleekFlow turn a HubSpot form into a WhatsApp Flow?

SleekFlow offers WhatsApp Flows as a customised solution for Enterprise customers: its team helps build each Flow in Meta’s Business Manager and connect it to SleekFlow, where submissions are stored as custom objects. Flowella starts from the HubSpot form you already have. Source 4, source 19.

How many WhatsApp Flows can we run?

On Flowella, as many as you like, on every plan. On SleekFlow, WhatsApp Flows are for Enterprise customers, set up with SleekFlow’s team, and its pages don’t give a number. Source 16, source 4.

Who bills WhatsApp’s message fees?

With Flowella, Meta bills you directly, at Meta’s list rates, and Flowella never marks them up. Flowella’s own bill is your plan plus any billable messages over its allowance.

With SleekFlow, you pay SleekFlow for each message from credits you top up in your SleekFlow account, at SleekFlow’s rate card. For a marketing message to a UK number that’s $0.07303; Meta’s list rate is $0.0635. Each WhatsApp number also costs US$15 a month. Source 17, source 14, source 3, source 2, source 1.

Which plans connect to HubSpot?

Every Flowella plan, from Starter. Forms to Flows works on every HubSpot plan, Free included; Flowella’s workflow actions need HubSpot Professional or Enterprise. SleekFlow’s pricing page lists HubSpot on Premium and Enterprise. Its Marketplace listing says Pro, Premium or Enterprise, and its help centre says the integration is in limited access, enabled on request. Source 18, source 20, source 1, source 6, source 5.

What about data residency for UK and EU buyers?

Flowella hosts Starter and Pro customers in Microsoft Azure’s UK South region, in London, and Enterprise customers can be hosted elsewhere by arrangement. SleekFlow’s privacy notice and trust centre don’t say where its servers are. Its operator, Sleekflow Technologies Limited, gives an address in Hong Kong and trades in the UK from New Malden, Surrey, and it holds SOC 2 Type II and ISO/IEC 27001 certification. Whichever you choose, check the vendor’s data processing terms. Source 26, source 12, source 13.

What is SleekFlow best at?

An omnichannel inbox that covers WhatsApp, Instagram, Messenger, TikTok, Telegram, LINE, WeChat, Viber, SMS, email and voice; AgentFlow AI agents; broadcasts and Flow Builder automations; and integrations with Salesforce, Zoho CRM, Shopify and VTEX. If that’s your job, SleekFlow is built for it. Source 8, source 10, source 1.

Can we use Flowella alongside SleekFlow?

Yes, on different numbers. Each WhatsApp number sits with one provider at a time, and moving a number from one to the other is a migration. Source 28.

Sources.

Every source was checked on 16 October 2026. Prices change, so check each vendor’s site before you buy.

  1. SleekFlow pricing (opens in a new tab)

    Plans in US dollars by monthly active contacts, seats and add-ons, HubSpot on Premium and Enterprise, the trial and the number fee.

    Checked 16 October 2026
  2. SleekFlow help: WhatsApp Business API pricing (opens in a new tab)

    SleekFlow’s rate card in US dollars from 1 October 2026, linked from its pricing page. UK: marketing $0.07303, utility $0.0253.

    Checked 16 October 2026
  3. SleekFlow help: WhatsApp billing (opens in a new tab)

    Message charges come from credits topped up in SleekFlow.

    Checked 16 October 2026
  4. SleekFlow: WhatsApp Flows (opens in a new tab)

    A customised solution for Enterprise customers; submissions stored in custom objects.

    Checked 16 October 2026
  5. SleekFlow help: HubSpot integration (opens in a new tab)

    Contact sync, user mapping, flows on HubSpot field values and HubSpot records from Flow Builder; in limited access.

    Checked 16 October 2026
  6. SleekFlow on the HubSpot Marketplace (opens in a new tab)

    Needs Pro, Premium or Enterprise; syncs contacts and owners; 5 from 1 rating.

    Checked 16 October 2026
  7. SleekFlow help: WhatsApp coexistence (opens in a new tab)

    The WhatsApp Business App and SleekFlow on the same number.

    Checked 16 October 2026
  8. SleekFlow help centre: channels (opens in a new tab)

    Instagram, Messenger, TikTok, Telegram, LINE, WeChat, Viber, SMS, email, voice and live chat.

    Checked 16 October 2026
  9. SleekFlow help: integrations (opens in a new tab)

    Salesforce, Zoho CRM, Shopify, VTEX, Google Sheets, Zapier, Make and more.

    Checked 16 October 2026
  10. SleekFlow help: AgentFlow (opens in a new tab)

    AI agents that answer enquiries and qualify leads.

    Checked 16 October 2026
  11. SleekFlow: about us (opens in a new tab)

    7,000+ enterprises in 70 countries and its offices, by SleekFlow’s account.

    Checked 16 October 2026
  12. SleekFlow privacy notice (opens in a new tab)

    Sleekflow Technologies Limited, Hong Kong; trading in the UK from New Malden, Surrey. No server location named.

    Checked 16 October 2026
  13. SleekFlow trust centre (opens in a new tab)

    SOC 2 Type II, ISO/IEC 27001:2022 and ISO/IEC 42001:2023.

    Checked 16 October 2026
  14. Meta: pricing on the WhatsApp Business Platform (opens in a new tab)

    List rates in US dollars from 1 October 2026. UK: marketing $0.0635, utility $0.022.

    Checked 16 October 2026
  15. HubSpot: connect WhatsApp to the conversations inbox (opens in a new tab)

    HubSpot’s own channel: the hubs it needs and its 1,000 template messages a month.

    Checked 16 October 2026
  16. Flowella pricing

    Starter $79 and Pro $199 a month, allowances, overage rates, unlimited Flows, a trial with no card, and Enterprise from 100,000 billable messages a month.

    Checked 16 October 2026
  17. Flowella knowledge base: plans, limits and billing

    The trial, overage, and Meta’s fees billed directly by Meta, never marked up.

    Checked 16 October 2026
  18. Flowella on the HubSpot Marketplace (opens in a new tab)

    Native form submissions, every HubSpot plan, and the rating.

    Checked 16 October 2026
  19. Flowella knowledge base: Flows

    How HubSpot forms become WhatsApp Flows.

    Checked 16 October 2026
  20. Flowella knowledge base: HubSpot workflow actions

    Six actions and four triggers, and the HubSpot plans they need.

    Checked 16 October 2026
  21. Flowella knowledge base: the HubSpot inbox channel

    WhatsApp in the HubSpot conversations inbox, and what it needs.

    Checked 16 October 2026
  22. Flowella inbox

    The Flowella app inbox and the HubSpot inbox.

    Checked 16 October 2026
  23. Flowella knowledge base: coexistence

    Keeping the WhatsApp Business App on the same number.

    Checked 16 October 2026
  24. Flowella multi-channel

    Several WhatsApp numbers in one account.

    Checked 16 October 2026
  25. Flowella integrations

    HubSpot first; others coming soon.

    Checked 16 October 2026
  26. Flowella knowledge base: data security

    Infrastructure in Microsoft Azure’s UK South region.

    Checked 16 October 2026
  27. Flowella privacy policy

    Flowella Limited, registered with Companies House in the UK.

    Checked 16 October 2026
  28. Meta: migrating a number between providers (opens in a new tab)

    How a business number moves from one provider to another.

    Checked 16 October 2026
  29. Flowella for HubSpot

    100K+ WhatsApp Flows completed, by Flowella’s count.

    Checked 16 October 2026

SleekFlow’s name and logo are used only to identify the product compared. Flowella figures come from Flowella’s own pages and its approved results.

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