Terms of Use

Last updated: October 19, 2026

1. Agreement

These terms are between you and Adam Neumann Software Engineering, a sole proprietorship registered in Poland, NIP 5833558438 ("we", "us"). By using Duet you agree to them and to our Privacy Policy. If you got Duet from the App Store, Apple's standard Licensed Application End User License Agreement also applies; from Google Play, the Google Play Terms of Service do. Where they differ from these terms, these terms apply to the extent the law allows.

2. What Duet is

Duet gives two partners one small thing to do together each day: daily questions, a 30-day plan, games, challenges, love notes, drawings, a weekly check-in and widgets. Some of it works on your own; most of it is meant for two.

Duet is not therapy, counselling or medical advice. If your relationship involves abuse or you feel unsafe, please contact local support services or emergency services.

3. Your account

• Duet starts with an anonymous account on your device. If you sign out or lose your phone before backing up with Sign in with Apple (Google on Android), you may not be able to get it back.
• You must be old enough to agree to these terms where you live, and at least 16.
• Keep your invite code private. Whoever joins with it becomes your partner in Duet and can see everything you share there.

4. What you share

Your answers, notes, drawings and photos stay yours. You give us the permission we need to store them and show them to you and your partner, and nothing more. When you share something with your partner, they can see it until you delete it, your account is deleted, or the shared space closes.

Don't use Duet to harass, threaten or monitor anyone, to share content that is illegal or that you don't have the right to share, or to try to break, overload or reverse engineer the service. We may suspend accounts that do.

5. Premium and payments

Duet is free to download. Premium opens the whole plan, every question deck and every game. The plans and prices in your currency are shown in the app before you buy:

• Yearly, an auto-renewing subscription that starts with a free week for eligible new subscribers.
• Weekly, an auto-renewing subscription.
• Lifetime, a one-time purchase with no renewals.

From time to time we may offer an introductory or discounted price; its terms are shown before you buy.

Billing and renewal

• Payment is charged to your Apple Account or Google Play account when you confirm the purchase or, with a free trial, when the trial ends.
• Subscriptions renew automatically at the same price and length unless you turn off auto-renew at least 24 hours before the current period ends. Your account is charged for the renewal within the 24 hours before that.
• We send a reminder 2 days before a free trial ends, if notifications are on.
• Manage or cancel on iPhone in Settings, then your name, then Subscriptions. On Android, open Google Play, tap your profile, then Payments & subscriptions, then Subscriptions. Deleting the app does not cancel a subscription. If you cancel, Premium stays until the end of the period you've paid for.
• If we change a subscription price, Apple or Google tells you first and, where the law requires, asks for your consent.

One purchase, both of you

Premium bought by either partner opens for both while you're connected. If you disconnect, Premium stays with whoever paid for it. Restore purchases in Settings if Premium doesn't appear on a new phone.

Refunds

Apple and Google handle all payments, so refunds are requested from the store you bought from and follow its refund policy: Apple at reportaproblem.apple.com, Google through Google Play. This doesn't limit any rights you have under consumer law.

6. Our app

Duet, its questions, the Duo and the rest of its design belong to us. You get a personal, non-transferable licence to use the app on devices you own or control. Please don't copy or resell the app or its content.

7. Changes and availability

We keep improving Duet, so features may change or be removed. We try to keep it running, but we can't promise it will always be available or free of errors. We may update these terms; when we make important changes we'll tell you in the app, and the date at the top always shows the current version.

8. Liability

Duet is provided as is. To the extent the law allows, we aren't liable for indirect or consequential losses, and our total liability is limited to what you paid for Premium in the 12 months before the claim. Nothing here limits liability that can't be limited by law, including for intent or gross negligence, or your rights as a consumer.

9. Ending

You can stop using Duet and delete your account in the app at any time. We may suspend or close an account that breaks these terms. Sections 4, 6, 8 and 10 still apply afterwards.

10. Law and disputes

Polish law applies. If you're a consumer, you also keep the protection of the mandatory laws of the country where you live, and you can bring a claim in your local courts. Please write to us first; most things can be sorted out by email.

11. Contact

Adam Neumann Software Engineering
Gen. Władysława Andersa 10/21, 80-175 Gdańsk, Poland
NIP 5833558438 · REGON 543762548
adaskososik@gmail.com