No Registration
Whether you use the app or your browser, the key advantage is simple: no registration required — just open and start.
Strudl replaces paper stamp cards with a digital experience. Collect rewards across cafés, discover new spots, and build your personal collection of café and coffee moments.
8 of 9 coffees collected. One more and you unlock your next reward.
Whether you use the app or your browser, the key advantage is simple: no registration required — just open and start.
Use your phone to collect digital stamps instead of carrying paper cards that get lost, forgotten, or thrown away.
Reach your coffee goal and redeem a free drink at your next visit — no paper vouchers, no hassle.
Strudl is built on trust. Here's exactly how every euro your café partners spend is used. Hover any slice to see the breakdown.
These numbers reflect April 2026 spend across our Austrian GmbH operations. We update this section every month. Have questions? Read our methodology →
Every stamp collected on Strudl goes to a café that chose to stay small and local. We build tools that help them compete — without losing what makes them special.
Paper loyalty cards end up in the bin. We replace them with a lightweight digital experience that's better for customers and kinder to the planet.
Loyalty shouldn't be transactional. Strudl turns your coffee routine into a network — connecting curious coffee drinkers with the places and people behind their cup.
No more printing, distributing, or disposing of paper stamp cards. Go fully digital in minutes.
Keep your regulars coming back with a loyalty experience that travels with them — even across other cafés in the network.
Cleaner data, real visit counts, and a direct line to community-minded coffee drinkers who actively seek out independent spots.
Whether you love discovering cafés, care about smarter loyalty, or want your coffee routine to support something bigger, this is where it starts.
For users
You're on the list — we'll be in touch!
Something went wrong. Email us at hello@strudl.app
For cafés
Partner with StrudlLast updated: April 11, 2026
This Privacy Policy describes how Strudl ("we," "us," or "our") collects, uses, and protects your personal information when you use the Strudl app, the strudl.app website, or any related service (the "Service"). Strudl is a digital café loyalty service operated from Vienna, Austria. By using Strudl you agree to the practices described here. If you do not agree, please do not use the Service.
Information you provide:
Information collected automatically:
We do not collect payment card details. If Strudl processes payments in the future, those will be handled by a regulated payment provider and we will not see or store card numbers.
We use personal information to:
We do not use your personal data for automated decision-making that produces legal effects concerning you.
As an EU-based service we rely on the legal bases set out in the GDPR:
We share personal information only with sub-processors that help us run the Service, and with partners strictly as needed to deliver it:
We may also disclose information where required by law, to protect the rights and safety of users or the public, or as part of a business transfer (e.g. merger or acquisition), in which case you will be notified. We do not sell or rent personal data.
Strudl uses only strictly necessary cookies (for sign-in and security) and privacy-first analytics that do not set tracking cookies or identify individual users. You can manage your preferences at any time via the "Cookie Settings" link in the footer. Because there is no common industry standard, we do not respond to the browser Do Not Track signal, but our default behaviour is to collect the minimum necessary data regardless.
Your data is stored primarily in the European Union. Some of our sub-processors may transfer limited operational data to the United States or other jurisdictions. Where that happens, we rely on Standard Contractual Clauses and additional safeguards as required by the GDPR.
We use industry-standard technical and organisational measures, including encryption in transit (TLS), encrypted databases, role-based access controls, and regular backups. No system is 100% secure, but we design Strudl to minimise the data we hold and the risk to you.
Strudl is not directed at children under 16 and we do not knowingly collect personal information from them. If you believe a child has given us personal information, please contact privacy@strudl.app and we will delete it.
Under the GDPR, you have the right to:
You can exercise most of these rights directly from your account settings or by emailing privacy@strudl.app. We will respond within 30 days.
We may update this Privacy Policy as Strudl evolves. When we make material changes, we will post the updated version here and, where appropriate, notify you in the app or by email. The "Last updated" date above always reflects the current version.
For any question about this Privacy Policy or how we handle your information, write to:
Strudl — privacy@strudl.app
Vienna, Austria
How do I create an account?
Download the Strudl app (coming soon to iOS and Android) and sign up with your email. Your account is ready in under a minute — no credit card required.
Do I need an account to browse cafés?
You can explore the café map without signing in. An account is required to collect stamps and redeem rewards.
How do I collect a stamp?
When you buy a coffee at a partner café, show your in-app QR code to the barista. They scan it and your stamp is added instantly.
Which cafés can I collect stamps at?
Any café that has joined the Strudl partner network. Look for the Strudl sticker at the counter, or browse the map in the app.
My stamp wasn't added — what do I do?
Email us at hello@strudl.app within 48 hours with the date, time, and café name and we'll sort it out.
How do I earn a reward?
Collect 10 stamps to unlock a free drink. Your reward appears automatically in the app once the 10th stamp is added.
Where can I redeem a reward?
At any participating Strudl café — not just the one where you earned your stamps. Strudl is cross-café by design.
Do rewards expire?
Unlocked rewards are valid for 90 days. You'll receive an in-app reminder before yours expires.
How do I change my email address?
Go to Account → Settings → Email in the app and follow the verification steps.
How do I delete my account?
Go to Account → Privacy → Delete my account. All personal data is removed within 90 days in line with our Privacy Policy.
Email us at hello@strudl.app. We aim to reply within one business day.
Last updated: April 19, 2026
By creating a Strudl account or using the Service, you agree to these Terms. If you do not agree, please do not use Strudl.
Strudl is a digital café loyalty service operated from Vienna, Austria. These Terms govern your use of the Strudl mobile app, the strudl.app website, and all related services (the "Service").
You must be at least 16 years old to use Strudl. By registering you confirm that you meet this requirement.
You are responsible for keeping your login credentials secure and for all activity that occurs under your account. Notify us immediately at hello@strudl.app if you suspect unauthorised access. One account per person — accounts are non-transferable.
Digital stamps are issued at the point of purchase at partner cafés. Rewards have no cash value, are non-transferable, and cannot be combined with other promotions unless stated otherwise. Strudl reserves the right to correct stamp errors and void stamps or rewards where fraud or abuse is found.
Strudl connects you with independently operated cafés. Each partner café is solely responsible for the quality of its products and for honouring valid Strudl rewards. Strudl is not a party to any transaction between you and a café and is not liable for any act or omission of a partner café.
You agree not to: (a) create more than one account; (b) share, sell, or transfer your account or rewards; (c) tamper with or artificially generate stamps; (d) use the Service in any way that violates applicable law or the rights of others; or (e) attempt to reverse-engineer, scrape, or interfere with the Service.
All content within the Service — including the Strudl name, logo, design, and software — is owned by or licensed to Strudl and may not be copied, modified, or redistributed without prior written permission.
The Service is provided "as is" and "as available". We do not guarantee uninterrupted or error-free operation and disclaim all implied warranties to the fullest extent permitted by law.
To the fullest extent permitted by Austrian law, Strudl's total liability to you shall not exceed €50 or the amount you have paid to Strudl in the 12 months preceding the claim, whichever is greater. We are not liable for indirect or consequential losses.
You may stop using Strudl and delete your account at any time. We may suspend or terminate your access if you breach these Terms or engage in fraudulent conduct. On termination, all stamps and rewards are forfeited.
We may update these Terms as Strudl evolves. For material changes we will notify you in-app or by email at least 14 days before the change takes effect. Continued use after that date constitutes acceptance.
These Terms are governed by the laws of Austria. Disputes shall be resolved in the courts of Vienna, Austria, unless mandatory consumer protection law in your country of residence provides otherwise.
Strudl — hello@strudl.app
Vienna, Austria
Media information — April 2026
Strudl is a digital café loyalty platform built for independent coffee shops and the people who love them. Founded in Vienna in 2026, Strudl replaces disposable paper stamp cards with a seamless, cross-café digital experience — letting coffee lovers collect stamps, redeem free drinks, and build a personal collection of café visits across an entire city.
Unlike large chain loyalty programmes, Strudl is designed specifically for the independent café scene. Every stamp keeps more value local.
To make every coffee count — for the person drinking it, the café serving it, and the community around it.
Users scan a QR code at checkout to collect a digital stamp. After 10 stamps they unlock a free drink reward, redeemable at any café in the Strudl network. Partner cafés get a modern loyalty tool, real visit data, and a meaningful relationship with customers who actively seek out independent spots.
For interview requests, data and statistics, partnership enquiries, or press assets:
press@strudl.app
We aim to respond to press enquiries within two business days.
Our logo, wordmark, colour palette, and brand usage guidelines are available on request. Please contact press@strudl.app before using Strudl brand assets in any publication. When writing about Strudl, please use the full name "Strudl" (capital S) and link to strudl.app where possible.
Last updated: April 19, 2026
Strudl is committed to making its website and app accessible to everyone, including people with disabilities. We believe good design includes everyone.
We aim to conform to the Web Content Accessibility Guidelines (WCAG) 2.1 at Level AA. strudl.app is partially conformant — most content meets the standard and we are actively closing the remaining gaps.
alt text; decorative images are hidden from assistive technology.lang attribute of the HTML element.prefers-reduced-motion.strudl.app is built with semantic HTML5, CSS, and vanilla JavaScript. It uses WAI-ARIA roles, states, and properties to support assistive technologies and is tested with VoiceOver (macOS / iOS) and NVDA (Windows).
If you encounter an accessibility barrier, please let us know:
This statement was prepared on April 19, 2026 and applies to strudl.app.