Terms of Use

1. Who provides Sundae

Sundae (the “app”) and this website (sundae.pro) are provided by Philipp Ludwig Syring, Otto-Lauffer-Str. 3a, 37077 Göttingen, Germany — referred to here as “we”, “us” or “Sundae”.

Contact: support@sundae.pro. Full provider identification is on the Legal notice page.

2. Acceptance of these terms

These Terms of Use form a binding agreement between you and us for your use of Sundae. By creating an account, ticking the acceptance box, or using the app, you agree to these terms and to our Privacy Policy. If you do not agree, do not use Sundae.

App stores

If you download Sundae from the Apple App Store or Google Play, the terms and usage rules of that store also apply to your download and any purchases. On the Apple App Store, Apple's standard Licensed Application End User License Agreement (the “Apple Standard EULA”, apple.com/legal/…/stdeula) governs your licence to install and use the app.

Apple and Google are not parties to this agreement and are not responsible for the app, its content, or any support. We, not Apple or Google, are solely responsible for the app. You acknowledge that Apple Inc. and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you. You confirm that you are not located in, or a national of, a country subject to a U.S. Government embargo or designated as “terrorist-supporting”, and that you are not on any U.S. Government list of prohibited or restricted parties.

3. Eligibility

• You must be at least 18 years old and legally able to enter into a contract. You provide your date of birth during sign-up so we can verify this; entering a false date of birth is a breach of these terms.
• You must verify a mobile phone number with a one-time SMS code (directly, or after signing in with Apple or Google) and share your location to finish sign-up. The number must be your own and must not be used to create more than one account.
• You may hold one account only, for yourself, as a natural person. Sundae is for personal, non-commercial use.
• Your registration details and profile information must be accurate and kept up to date. In particular, your photos must genuinely show you and be reasonably current; you must add a main photo, at least one further photo and at least one prompt answer before you can be matched.
• You must not use Sundae if you have previously been banned, or if applicable law prohibits you from using such a service.
• You must not have been convicted of a serious violent or sexual offence.

4. The service

Sundae is a dating service with a deliberately limited design:

• You complete a one-time personality test and set your preferences. Your location is required, because matching is based on who is near you.
• Once per weekly cycle, Sundae introduces you to one other member selected automatically based on personality, preferences, distance and signals from your past matches. The main introduction is on Sunday; if you were not matched, Sundae may try again once mid-week.
• Each match runs for a limited period (up to about one week, and no longer than the current cycle). Either person can end it earlier. When it ends, you may be asked for brief feedback.
• A match's photo is shown blurred at first and is revealed gradually as the conversation progresses. In the chat you can send text messages and voice messages of up to two minutes, and see when the other person is typing.
• While you are matched, your match can see your full profile text (bio, prompts, the basics you filled in and interests) and the personality profile Sundae derives from your test (as compatibility indicators, not your individual answers). With Sundae+, they can also see your further photos beyond the main one, and later see you in a history of past matches.
• Discover & postcards: in addition to your match, the app shows a daily selection of twelve people near you who fit your preferences and are not currently matched with you, refreshed once a day. You can send any of them a short postcard (a brief note, delivered the next day); Sundae+ lets you send more per day and reserves you a spot in an inbox that's otherwise full. If two people exchange enough postcards and both agree, they can arrange a guaranteed match for the next Sunday, entirely outside the normal matching. Sending or receiving a postcard also becomes one of the signals our matching model considers for future drops. There is no endless feed, no swiping, and no way to search for a specific person directly.

We do not guarantee that you will receive a match in any given cycle, that a match will reply, that any connection will result, or that other members' information is accurate. Matching logic, timing and features may change over time.

5. Your account

Sundae has no passwords: you sign in with a one-time SMS code sent to your phone number, or with Apple or Google. Keep your phone and those accounts secure and do not let anyone else use your account. Tell us promptly at support@sundae.pro if you suspect unauthorised use. You are responsible for activity that happens through your account, except to the extent it results from our failure.

6. Rules of conduct

When using Sundae, you must not:

• harass, threaten, defame, stalk, bully or abuse anyone, or promote hatred or discrimination;
• send sexual content to a match who has not clearly welcomed it, or any sexual content involving minors;
• impersonate another person, use someone else's photos, or create a fake or misleading profile;
• post or send content that is illegal, violent, hateful, or infringes someone's rights;
• solicit money, donations, or promote products, services, events or other platforms; use Sundae for advertising, recruiting or commercial purposes;
• ask for or share others' personal data beyond what a match chooses to share with you, or publish or forward another member's photos, messages or information outside Sundae without their consent;
• use bots, scrapers or automated methods, attempt to bypass the one-match-per-week design, reverse engineer the app, or interfere with its security or operation;
• use Sundae if you are married or in a relationship in which your partner would not consent, where this would mislead a match.

You can block a match at any time and report behaviour that breaks these rules from within the chat. Reporting a person also ends the match and blocks them.

Zero tolerance for objectionable content and abusive users

Objectionable content and abusive use means anything covered by the list above — in particular harassment, hate, threats, non-consensual or explicit sexual content, any sexualisation of minors, violent or self-harm content, scams and fraud, impersonation, and sharing another person's private information. The list is illustrative, not exhaustive; we decide, acting reasonably, whether something falls within it.

We keep such content and users off Sundae through: clear rules that every user accepts; a report control in every match conversation (and support@sundae.pro for anything else); a block control that instantly ends a match and prevents re-pairing; human review of every report; and the right to remove content and to suspend or permanently ban accounts, including on our own initiative. We review every report of objectionable content or an abusive user within 24 hours and, where it is upheld, remove the content and eject the user — see section 10.

7. Your content

You keep all rights in the photos, text and other content you add to Sundae (“your content”). You grant us a non-exclusive, worldwide, royalty-free licence to host, store, reproduce, adapt (for example to blur, resize or format) and display your content, solely to operate and provide the service — including showing your profile to your match. This licence ends when you delete the content or your account, except for copies your match already received (such as messages) and backups or moderation records we are permitted to keep under the Privacy Policy.

Your content includes voice messages you record and send in a chat. You confirm that your content is yours to share and does not infringe anyone's rights, and that everyone who can be heard in a voice message agrees to its being sent. We may remove content that breaches these terms.

8. Safety and meeting people

We are not able to verify every member, run background checks, or supervise conversations. You are responsible for your own interactions.

To the extent permitted by law, we are not responsible for the conduct of any member, online or offline. Nothing in these terms limits liability that cannot be limited by law (see section 13).

9. Sundae+ subscription

Sundae is free to use. Sundae+ is an optional paid subscription that unlocks additional, non-matchmaking features — such as seeing all of a match's photos (not just the first), sending more postcards per day with reserved delivery even to a full inbox, a detailed compatibility breakdown, a history of your past matches, and deeper personal insights. It does not change who you are matched with, and it does not change the twelve people you see in Discover — that selection is the same for everyone.

• Price: 6,99 € per month (price for Germany; the amount shown in your app store applies and may vary by region and store). We are a small business under § 19 UStG and do not show VAT separately; app-store sales tax, where it applies, is handled by Apple or Google as the marketplace.
• Billing: purchases are processed by Apple or Google through your store account, under their terms. We do not receive your payment details.
• Refunds: refund requests go through Apple or Google, not us. If you ask Apple for a refund, Apple may ask us for a small amount of information about the purchase — such as the transaction ID and confirmation that the paid features were delivered and worked — to assess your request. We do not share your payment details, and we only respond to the specific request Apple makes.
• Renewal: the subscription renews automatically for successive one-month periods until cancelled.
• Cancellation: cancel at any time in your Apple or Google account settings, at least 24 hours before the next renewal. Access continues until the end of the paid period. Cancelling in the app's settings records your intent, but the subscription itself must be managed through the store.
• Withdrawal (EU/EEA consumers): Sundae+ is purchased through the Apple or Google store, so that purchase contract is with Apple or Google, not with us — withdrawal and refunds for it follow their policies (see “Refunds” above). If you ever pay us directly instead of through a store, you have a statutory 14-day right of withdrawal for the purchase of digital content; by asking us to begin performance immediately in that case, you acknowledge that the right of withdrawal lapses once we have fully performed.
• If we materially reduce Sundae+ features, we will let subscribers know and, where required, offer a pro-rata refund or cancellation.

10. Moderation, reporting and suspension

You can report a match from the conversation menu (this also blocks the person and ends the match), or email support@sundae.pro. When a report is filed, the relevant conversation is captured so it can be assessed even if an account is later deleted.

We review every report of objectionable content or abusive use within 24 hours and, where it is upheld, remove the content and/or suspend or permanently ban the account responsible. We aim to answer report-related and other support emails within 24 hours and in any case without undue delay.

More generally, we may review reports and, where reasonably necessary, restrict, suspend or permanently ban an account, remove content, or end a match — for example where we believe these terms have been broken, where there is a risk to other members, or where we are legally required to act. We may also act on our own initiative. Where practical and lawful, we will give you notice and a reason, and you can object by contacting support@sundae.pro. A banned account loses access to matches and messages. The content rules themselves are in section 6.

Illegal content can also be reported by anyone, not only members you're matched with, by emailing support@sundae.pro with the location of the content (for example, the profile or conversation it appeared in), why you believe it is illegal, and your contact details (Art. 16 EU Digital Services Act). If we remove content or restrict an account in response, we tell the person affected why and how to object, and review any objection (Art. 17 DSA).

11. Ending your use of Sundae

You can stop using Sundae at any time and delete your account from Settings → Account → Delete account. You can also pause matching without deleting anything. We may terminate the agreement with you on reasonable notice, or immediately for good cause (such as a serious or repeated breach of these terms). Sections that by their nature should survive termination (including content licence carve-outs, liability, and governing law) continue to apply.

12. Availability and changes

We aim to keep Sundae available but do not promise uninterrupted or error-free operation. We may modify, suspend or discontinue features, or the whole service, for operational, legal or business reasons.

We may change these terms where there is a valid reason — for example a change in the service, in technology, or in the law. We will notify you of material changes in the app or by email at least 30 days before they take effect. If you do not accept the change, you may terminate by deleting your account before it takes effect; continued use after that date means you accept the updated terms.

13. Liability

We are fully liable for damages caused intentionally or by gross negligence, for injury to life, body or health, under the German Product Liability Act (Produkthaftungsgesetz), and to the extent we have given a guarantee.

For slight negligence, we are only liable where we breach a material contractual obligation (an obligation whose fulfilment makes proper performance of the contract possible in the first place and on whose observance you may regularly rely). In that case our liability is limited to the foreseeable damage typical for this type of contract.

Any further liability is excluded. This does not shift the burden of proof to your disadvantage. The same limitations apply to our personal liability where claims are made against our staff, representatives or agents.

In particular, and within the limits above, we are not liable for the accuracy of member information, for whether you receive or connect with a match, or for the conduct of other members.

14. Licence to use the app and our intellectual property

The Sundae name, logo, app, website, design and underlying software are protected and remain our property or that of our licensors. We grant you a limited, personal, non-exclusive, non-transferable, revocable licence to install and use the app as intended, for your own personal, non-commercial use, for the duration of your account. The app is licensed, not sold. No other rights are granted.

Except where the law expressly permits it, you must not copy, modify, translate, reverse engineer, decompile or disassemble the app; rent, lease, sell, sublicense or distribute it; scrape or harvest data from it; use it to build a competing product; circumvent its security or the one-match-per-cycle design; or remove any proprietary notices.

15. Governing law and disputes

These terms and any dispute arising from them are governed by the law of the Federal Republic of Germany, excluding its conflict-of-law rules and the UN Convention on Contracts for the International Sale of Goods. If you are a consumer, this choice of law does not deprive you of the protection of mandatory provisions of the law of your country of habitual residence.

These terms are published in German (Nutzungsbedingungen) and English. This English version is a translation for convenience; for consumers with their habitual residence in Germany, the German version is authoritative.

The European Commission provides an online dispute resolution platform at ec.europa.eu/consumers/odr. We are not obliged and not willing to participate in dispute resolution proceedings before a consumer arbitration board (Verbraucherschlichtungsstelle).

16. Final provisions

If any provision of these terms is or becomes invalid, the remaining provisions stay in force. You may not assign your rights under these terms without our consent; we may assign the agreement to a successor that takes over the operation of Sundae, without reducing your rights. These terms and the Privacy Policy are the entire agreement between you and us regarding Sundae.

17. Related documents and legal notice

These terms should be read together with:

• Privacy Policy — what data we process and why.
• Legal notice — provider identification pursuant to § 5 of the German Digital Services Act (DDG).

For apps with user-generated content, Apple (Guideline 1.2) and Google require the operator to publish terms in which users agree there is no tolerance for objectionable content or abusive users, and which provide a way to filter and report such content, to block abusive users, and a commitment to act within 24 hours. Those provisions are in section 6 and section 10 of these terms; there is no separate end-user licence agreement.