Terms of Service

Last updated: October 6, 2026

These terms are an agreement between you and Winter Advisory LLC ("BrandStack", "we") for the BrandStack website and iOS app (the "Service"). By using the Service you agree to them.

1. The Service

BrandStack connects to one or more of your Gmail inboxes and organizes mail from brands and stores into your brands, offers, purchases, spend, subscriptions and saved lists. It files mail it is confident comes from a store out of your inbox and into a "BrandStack" label (you can turn this off in Settings). It never sends email and never permanently deletes mail. The Service is free.

2. Your account

You sign in with a Google account you control. You are responsible for activity under your account and for keeping your Google account secure. You must be at least 13 years old (or the minimum age in your country).

3. Your data

You keep all rights to your email and the content you add. You give us permission to process it only to run the Service for you, as described in the Privacy Policy. You can delete your account and its data at any time in Settings.

4. Acceptable use

Do not misuse the Service: no attempts to access other users' data, to probe or overload our systems, to reverse engineer the Service beyond what law allows, or to use it for anything unlawful.

5. Information we show you

Offers, totals, spend, subscriptions and summaries are extracted automatically from your mail, partly with AI, and can be wrong or out of date. Check the original email or the merchant before relying on an offer, amount or renewal date. Cancelling a subscription happens with the merchant; BrandStack links you to it and can't cancel for you. BrandStack is not affiliated with the brands shown and does not sell their products.

6. Changes and ending the Service

We may change or stop features. If we make a material change to these terms we will tell you in the app first. You may stop using the Service at any time. We may suspend accounts that break these terms.

7. Disclaimers and liability

The Service is provided "as is" without warranties of any kind, to the extent the law allows. To the extent the law allows, we are not liable for indirect or consequential losses, and our total liability is limited to the greater of USD 50 or what you paid us for the Service in the 12 months before the claim. Nothing here limits rights you have under consumer law that cannot be waived.

8. Apple

If you use the iOS app: these terms are between you and Winter Advisory LLC, not Apple. Apple has no obligation to provide support or maintenance for the app and is not responsible for claims about it. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them. You must also follow the App Store terms.

9. Law

These terms are governed by the laws of the State of California, USA, and disputes go to the state or federal courts located in California, unless your local consumer law says otherwise.

10. Contact

Winter Advisory LLC · andrew@winteradvisory.llc