Which is the right fit for your HubSpot stack?

We’ve tried to make it so. Every fact about TimelinesAI links to its own pages, help centre or HubSpot Marketplace listing, checked on 25 October 2026. TimelinesAI does more than Flowella in places, such as syncing reps’ own WhatsApp numbers, group chats and calls, other CRMs and AI tools, and the table says so. Its prices are per seat, with messaging credits per seat, so we give them in words rather than in a calculator.

Three ways, on every plan. A QR code links a personal or Business app number as a linked device, as WhatsApp Web does: no Meta fees, and group chats and calls sync too. Official WABA puts a number on Meta’s WhatsApp Business API, with approved templates. Coexistence does both on one Business app number.

TimelinesAI says WhatsApp’s anti-spam systems can ban QR-connected numbers for patterns such as sudden bursts of messages, and that the official API is the path Meta built for volume. Its Marketplace listing adds that, to comply with WhatsApp’s Terms of Service, you should use the Business app or WABA in a live environment.

Its own guide to the three paths says linked devices are a Meta feature, but the libraries that script them, its own included, sit outside Meta’s list of Business Solution Providers. Flowella connects every number through Meta’s WhatsApp Business Platform. Source 6, source 1, source 3, source 4, source 10, source 31.

Not that its documentation describes. Its plans and help centre don’t mention WhatsApp Flows, and its guide to connection types says QR-linked numbers can’t launch them. Flowella starts from the HubSpot form you already have. Source 1, source 11, source 10, source 24.

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 TimelinesAI, QR-connected numbers carry no Meta fees. On API and Coexistence numbers, Meta bills its own per-message fees for templates and TimelinesAI adds no platform fee, though campaign and automated messages use its messaging credits. For a UK number, Meta’s list rates are $0.0635 for marketing and $0.022 for utility. Source 22, source 18, source 1, source 6, source 9.

Every Flowella plan, from Starter. Forms to Flows works on every HubSpot plan, Free included; Flowella’s workflow actions need HubSpot Professional or Enterprise. Every TimelinesAI plan includes HubSpot, and its listing says it works with every HubSpot tier, Free CRM included; its workflow action and its Breeze Agents tool need HubSpot Professional or Enterprise. Source 23, source 25, source 1, source 3, source 5.

Automated and mass messages use one credit each, HubSpot workflow sends and template campaigns included: 50 a seat a month on Starter, 500 on Pro and 2,000 on Enterprise. On Starter and Pro, extra credits are $4 per 100 a month, or $40 for a one-time 1,000. One-to-one messages are unlimited. Flowella prices by billable message, not by seat. Source 9, source 8, source 1, source 21.

Flowella runs its app, databases and file storage in Microsoft Azure’s UK South region, in London, with stored files copied to UK West, in Cardiff.

TimelinesAI’s security page puts its servers in its own virtual private cloud in Frankfurt, Germany, and its data processing agreement, from TimelinesAI LLC in Wyoming, lists AWS, Google Cloud and Azure in EU regions; a help article on QR links says its servers may be in the United States or Europe. Whichever you choose, check the vendor’s data processing terms. Source 31, source 14, source 15, source 13, source 16.

Bringing the WhatsApp numbers your reps already use into the CRM: personal and Business app chats, group chats and calls, logged to HubSpot, Pipedrive, Salesforce, Zoho and more, with a shared inbox across numbers, Workflow Builder, ChatGPT agents and a WhatsApp MCP for AI assistants. If that’s your job, TimelinesAI is built for it. Source 12, source 4, source 1.

Yes, on different numbers. Each WhatsApp Business Platform number sits with one provider at a time, and moving a number from one to the other is a migration. TimelinesAI can also link reps’ own numbers by QR code, which doesn’t use the platform at all. Source 20, source 12.