Privacy Policy

This Privacy Notice was last modified on 22.12.2022.

Grew Oy. ('us', 'we', or 'our') operates, and (the “SERVICE”).

This document describes the information that we collect about you, how it is used and shared, and your rights regarding it.

TLDR This Privacy Policy

In such cases where Superlines is connected to your data sources, we will only use your performance data to analyze reporting metrics and train our machine learning models. We will never sell or share your raw data with third parties. We save your email address to our database during the authentication process.

Overview of how Superlines works

Superlines Business tier works by transferring reporting and ad creative data exported from your marketing platforms to Superlines' database. Superlines uses machine learning algorithms to process your data and then let's you use these pre-trained prediction models to test ad copy variations and simulate results. We migh build direct integrations to marketing platforms and in such case, all data is transferred via Google Ads API over SSL.

How are your data used?

Our database does store the email address and customer id that is connected to your Google account for authentication purposes. The authentication data is stored in a secure database, secured by firewalls, and is never shared with any third parties.

Does Superlines share any of your ad data with third parties?


Data Deletion Requests

In compliance with GDPR, any user may request that his/her data be deleted from our servers. To make such a request send an email to hello[@] from the Superlines account whose data you wish to be deleted.


This Privacy Statement describes the information we collect about you, how it is used and shared, and your rights regarding it.

Data Collection

All the information that we hold about you is provided to us by yourself when you use our SERVICE. We will tell you why we need the information and how we will use it.

Our Lawful Basis for processing your information

The General Data Protection Regulation (GDPR) requires all organisations that process personal data to have a Lawful Basis for doing so.

Our Lawful Basis is: performance of a contract to deliver our SERVICE to you and our Legitimate Interests are where you are a customer of our SERVICE; processing for direct marketing purposes, or to prevent fraud; and processing necessary to ensure network and information security, including preventing unauthorised access;

We use your information to eg:

  • Provide you with access to our Service
  • Ensure access to your data is safe and secure
  • Process payments
  • Pull data from Google Ads to our database
  • Investigate and address your concerns
  • Communicate with you about products, services, promotions, studies, surveys, news and updates relating to our service
  • Investigate or address legal proceedings relating to your use of our services/products, or as otherwise allowed by applicable law

We collect and process both personal data and special categories of personal data as defined in the GDPR.

This may include data such as:

  • Email address
  • IP Address

We may share your personal data with:

  • Our payment processor for processing card payments
  • Our legal advisors in the event of a dispute or other legal matter
  • Law enforcement officials, government authorities, or other third parties to meet our legal obligations

We transfer personal data to the following third countries or international organisations using the identified safeguards because we rely on third-party services to deliver our Service.

  • Stripe (USA)
  • Hubspot (EU)
  • Mixpanel (EU)
  • MongoDB (EU)

We have satisfied ourselves that such transferred data is fully protected and safeguarded as required by the General Data Protection Regulation.

We retain your personal data while you remain a customer, unless you ask us to delete it. We will delete or anonymise your information at your request unless:

  • There is an unresolved issue, such as claim or dispute
  • We are legally required to or
  • There are overriding legitimate business interests, including but not limited to fraud prevention and protecting customers'safety and security

Your Rights

The General Data Protection Regulation gives you specific rights around your personal data. For example, you have to be informed about the information we hold and what we use it for, you can ask for a copy of the personal information we hold about you, you can ask us to correct any inaccuracies with the personal data we hold, you can ask us to stop sending you emails, or in some circumstances ask us to stop processing your details.

Accessing and Correcting Your Information

You may request access to, correction of, or a copy of your information by contacting us at hello[@]

Marketing Opt-Outs

You may opt out of receiving emails and other messages from us by following the instructions in those messages.


Cookies are small text files that are stored on your browser or device by websites, apps, online media, and advertisements.

We use cookies to:

  • Validate users
  • Remember user preferences and settings
  • Determine frequency of accessing our content
  • Measure the effectiveness of advertising campaigns
  • Analyse site visits and trends

We reserve the right to update our Privacy Statement at any time. Any changes will be posted to this page.

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