That is the core rhythm the app teaches users from onboarding.
German learning with momentum
The website now feels like the actual app.
KarteiDeck is a local-first German learning app built around a clear daily rhythm: due reviews first, then new cards, then Lisa or a mini game. The deck starts with 5,000+ ranked German words and grows into speaking, listening, streaks, missions, achievements, and progress that feels alive.
Available now for iPhone on the App Store.
5,000+
ranked German words
Lisa
tutor, translation, free chat
Local-first
progress stays on device
Tutor, translation, and natural conversation all live inside the same system.
Progress screens track level, accuracy, achievements, and daily momentum.
What the app actually is
Not just flashcards. A tighter German practice loop.
The homepage now focuses on what the product visibly supports in the app today instead of generic language-app marketing.
Frequency first
Start with the words that matter
KarteiDeck leads with a ranked German deck so your study time compounds into practical recall faster.
- 5,000+ ranked German words
- Audio and examples built into the deck
- Tiered progression tied to mastery
Daily momentum
A rhythm you can actually follow
The app repeatedly points learners toward the same loop so studying feels lighter and more consistent.
- Due reviews before extra novelty
- New cards without overload
- Mini games as the warm-up layer
Speaking built in
Lisa turns recall into speech
Lisa is not side content. She is the speaking layer of the app for drills, translation reps, and more natural conversation.
- Tutor mode
- Translation mode
- Free chat for spoken German reps
Inside the product
The app feels bright, friendly, and seriously useful.
KarteiDeck’s interface leans sky-blue, rounded, and glassy on purpose. The site now follows that same language instead of fighting it.
01
Launch into a light, airy world
The app opens with blue skies, clouds, soft gradients, and a calm “Loading your deck...” mood instead of something dark or aggressive.
02
See progress everywhere
XP, streaks, level framing, missions, achievements, banners, and mastery all reinforce that you are moving forward.
03
Keep the product personal
The app openly says it is built by one developer who is also learning German. That honesty belongs on the website too.
Reliable product signals
Everything below comes from the app’s current features and copy.
These are the details users can already see reflected in onboarding, settings, progress screens, and the paywall.
Deck scope
5,000+
Settings and onboarding both describe the deck as 5,000+ German words with SRS-powered review.
Speaking coach
Lisa
The app explicitly positions Lisa as a real part of the product now, not an experiment hidden away.
Progress model
A1-C2
Progress screens frame mastery using German level tiers and track review accuracy, missions, streaks, and achievements.
Pro extras
More cards, banners, rekindle
The paywall highlights more cards daily, all banners, streak rekindle, weekend 2× XP, and all cosmetics.
Built with care
Solo dev, also a German learner.
That line is in the app for a reason. It explains why the product feels personal, why the feedback path matters, and why the website should feel close to the product instead of polished into something generic.
“This app is built by one person who is learning German too. Your feedback genuinely shapes what gets built next.”
From KarteiDeck onboardingFeedback loop
Your notes matter
The app tells learners to use the Feedback button in Settings because that is the fastest way to influence what changes next.
Support pages
Still practical
Privacy, terms, and support remain one tap away so the site stays trustworthy while feeling more alive.
Local-first stance
Closer to your device
The privacy page already reflects the product’s local-first posture, so the landing page now visually supports that same sense of grounded trust.