Who we are

Hiiifive is a product of Synergise Systems Limited, a company registered in England and Wales, at 59 Sunnydene Street, London SE26 4ER, United Kingdom.

For anything about your data, write to us at willy@synergisesystems.com.

Two roles

Hiiifive lets businesses answer their customers on WhatsApp and Messenger. When you write to a business that uses Hiiifive, that business decides what happens to your messages and data. It is the controller, and we process the data on its behalf and on its instructions.

When you sign in to the Hiiifive builder as part of a business's team, we are the controller of your account data.

What we keep about people who write to a business

The id WhatsApp or Messenger gives you for that business: your WhatsApp number, or a Messenger id that only that business's Page uses.
Your name as WhatsApp or Messenger shares it, and on Messenger your language setting when Meta shares it.
Your country, worked out from the dialling code of your WhatsApp number.
What you tell the business's bot when it asks, such as answers, a phone number or an email address.
The messages between you and the business, from you, the bot and the business's staff, and whether each one was delivered.
When a member of the business's staff took over the conversation, and when they handed it back.
Which of the business's customer groups you are in, if the business uses groups.

What we keep about team members

Your email address, name and role in the business's workspace.
Your password, stored only as a one-way hash that cannot be read back.
When you signed in, and the sessions that keep you signed in.
When a business connects a Facebook Page or a WhatsApp number, the access token Meta issues for it, encrypted.

Why we use it

To deliver messages between a business and its customers, run the conversations the business has designed, and show them to the business's team.
To count messages for the business's plan.
To keep the service secure and to fix faults.

We do not sell personal data, use it for advertising, build profiles of people across businesses, or use it to train AI models.

For team members, we rely on our contract with the business and on our legitimate interest in keeping the service secure. For a business's customers, the business is responsible for the lawful basis.

Who else sees it

Meta, which carries every WhatsApp and Messenger message under its own terms and privacy policy.
The business you wrote to, and the people on its team.
The business's own systems, when a conversation it designed calls them, for example to check a booking.
Hetzner Online GmbH, which runs our servers and databases.
Public authorities, only when the law requires it.

Cookies

This website sets no cookies and runs no analytics.

The builder sets one cookie, to keep you signed in. It also remembers your light or dark choice and your view of the canvas in your own browser.

Security

Access tokens and secrets are encrypted at rest. Passwords are hashed. Sign-in sessions end when they are not used. A business's team sees only that business's conversations.

Your rights

Under UK data protection law you can ask for a copy of your data, have it corrected or deleted, restrict or object to its use, and receive it in a portable form.

If you are a customer of a business, you can ask the business, or write to us at willy@synergisesystems.com and we will work with the business. We answer within one month.

How to have your data deleted is set out on the data deletion page.

If you are unhappy with how your data is handled, you can complain to the Information Commissioner's Office at ico.org.uk.

Changes

When this policy changes, the date at the top changes with it.