Independent App Studio
We craft
beautiful apps
Small team. Big ideas. We build thoughtful, well-designed apps for iPhone, iPad, Mac and Android that make everyday tasks a little more delightful.
Our Apps
Apps we have built
Language Learning
12 apps
Grüezi
Learn Swiss German the Fun Way
Climb from the valley to the 4’478 m summit: 95 lessons in six stages, 30 real-world dialogues, Mundart audio, nine patterns that turn Hochdeutsch into Mundart and 20 regions — now with Schwiizerli, a listening game with 60 levels.
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Sawasdee
Learn Thai, the Beautiful Way
Pick your chili level: five levels from your first Thai letter to real conversations — 100 units, 400 lessons, a short story in every unit, a stamp passport, guided stroke order and Kru Noi, your Thai conversation tutor.
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Willkommen
Real German for Real Life
Travel from Hamburg to Basel: nine CEFR levels become nine cities, with a Reisepass stamp for every unit, der, die, das in colour and all four skills — plus the conjugation of 3,200 German verbs, searchable by any form.
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Allegra
Learn Romansh, Switzerland’s Fourth Language
Learn Sursilvan Romansh through 82 lessons, 1,482 dictionary-checked words, spaced repetition cards, 20 real conversations, and a searchable Pledari — readable in English, German, Italian, or French.
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Hangul Path
Learn Korean from the Very First Letter
Read all 40 Hangul letters in days, then climb 70 units in ten stages toward TOPIK — 38 spoken conversations, real-life missions and reviews that stick, in seven languages, on iPhone and iPad.
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Michi
Learn Japanese from First Kana to JLPT N1
One clear path of 113 units, from hiragana and katakana to JLPT N1 — listen, speak, read and write in every unit, with 499 kanji to trace stroke by stroke and 116 conversations, in eleven languages, on iPhone and iPad.
Learn moreEveryday Languages
Real-life phrases with a friendly mascot coach — 100 situations, speaking practice, and one purchase that's yours forever.
Citizenship & Civics
2 apps
Bürgertest
The Swiss Naturalisation Test, by Canton
Prepare for the citizenship test your canton actually sets — 1,051 sourced questions with a pack for all 26 cantons, timed mock exams, the full Einbürgerungsgespräch, fide-style language practice and a step-by-step guide, in seven languages.
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Staatsbürgertest
The Austrian Naturalisation Test, by Bundesland
Prepare for the Austrian citizenship exam — 289 questions written from official sources with a citation and an explanation each, 55 lessons, ten study languages, and mock exams scored the way the real paper is scored.
Learn moreKids & Family
65 apps
Baby Chicken
Thai Learning for Kids
A fun and colorful Thai language app for kids. Learn 15 categories with 500+ audio pronunciations, play games, read 6 original stories, and explore drawing activities.
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Little ABC
English Learning for Kids
A delightful English learning app for kids. Explore 14 categories — letters, numbers, colors, animals, clothing, and more — through games, drawing, and classic stories.
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Kinder Apfel
German Learning for Kids
A colorful German learning app for children. Learn 30 letters, 125+ vocabulary words across 14 categories, writing, and 6 fairy tales — all with audio pronunciation. 100% offline, no ads.
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WonderSprout
Wonder, play, and discover
A calm, ad-free iPhone & iPad app for kids ages 4–8. Twenty wonder topics, logic puzzles, sing-along songs, twenty bedtime stories, picture tales, and ten brain games — all in one quiet little garden. No ads. No tracking. Made for Kids.
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PianoPaws
Piano for Kids
A colorful piano app for kids ages 2–8. Follow a cute cat guide through 22 songs, explore 4 instruments on a rainbow keyboard, play duets with a parent, and earn achievements — all through play. No ads, no tracking.
Learn moreFirst-Alphabet Series
One first-alphabet app for every language a child might grow up with — 60 languages, each with its own mascot and the same calm, offline design.
Western Europe
Northern Europe
Central & Eastern Europe
East Asia
South & Southeast Asia
Middle East & Central Asia
Africa
Lifestyle & Wellness
3 apps
Calmara
Sleep, Relax & Focus
Your personal sanctuary of calm. Layer 24 ambient sounds, follow guided breathing exercises, stay focused with a Pomodoro timer, and track your mood with journaling.
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Canvary
Your Creative Diary
Write, draw, add photos, track your mood, and relive your memories — all in one beautifully crafted journal app, protected with Face ID and synced across your devices via iCloud.
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Tamrap
Thai & World Recipes
Cook authentic Thai dishes and world favorites. Plan meals, build smart shopping lists, and follow step-by-step Cooking Mode — in 10 languages, fully offline.
Learn moreProductivity & Tools
6 apps
Aplomby
Social Skills & Public Speech
A stage, a random topic and a clock — then a score for your pace, filler words and pauses, measured on your device. 100 lessons, 50 scenarios and a twelve-week view of whether it is working. iPhone, iPad and Mac.
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Threadmap
Where ideas connect
A beautifully simple mind mapping app for iPhone, iPad, and Mac. Capture an idea, branch it into related thoughts, and watch your thinking take shape on an infinite canvas — with iCloud sync, real-time collaboration, and an AI assistant when you want one.
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Vaultly
Smart Expense Tracking
Your finances, beautifully organized. Track expenses, manage budgets, set savings goals, and stay tax-ready — all privately on your device with biometric security.
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ID-Shield
Protect & Watermark Your IDs
Share identity documents safely. Watermark and redact passports, IDs, and driving licenses before sending to hotels, landlords, employers, and more. Face ID protected with optional iCloud sync.
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Mabebe
A private journal for the whole baby journey
From trying to conceive through pregnancy, newborn, and the early years — track feeds, sleep, growth, milestones, and appointments in one calm place. Private by design, no ads, no accounts. Optional iCloud sync and co-parent sharing.
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Houseprint
A little helper for Mama
Can't find it? Ask your phone — like you'd ask Mama. Sweep a drawer, shelf, or closet; later ask where things are and jump straight to the frame. One tap exports an insurance-grade home inventory. 100% on your phone.
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About
The story behind KK Studio
KK Studio is an independent app development studio based in Switzerland. We believe that great software starts with a deep understanding of the people who use it.
Every app we build is crafted with care — thoughtful design, clean code, and a focus on the details that make the difference between good and truly delightful.
We are a coder family. KK Studio focuses on playful, consumer-facing apps for iPhone, iPad, Mac and Android, while my husband runs treeinspired — a brother studio building trusted software for healthcare, security, and developers.
Small studio. Big shelf.
Craftsmanship
Every pixel, every interaction, every line of code matters.
Simplicity
We strip away complexity to reveal what truly matters.
Passion
We build apps we ourselves want to use every day.
Brother Studio
We are a coder family
Swiss software for healthcare, security & developers
Built by my husband from Switzerland. treeinspired is the brother studio to KK Studio — crafting trusted tools for doctors, security teams, small businesses and developers. Different users, same obsession with quality.
Healthcare
Security
Developers & Mac
Blog
From the blog
What Does Grüezi Mean? Grüezi Mitenand and Hoi Zäme Explained
Grüezi is the polite Swiss German hello. What the word really says, the old blessing inside it, what Grüezi mitenand and Hoi zäme mean, and what to say back.
BürgertestSwiss Citizenship Requirements: The Language Level You Need
The federal minimum is B1 spoken and A2 written, and eight cantons ask for more. Every canton's level, what counts as proof, and who is exempt.
WillkommenC Permit Switzerland: Language Requirements Explained
A2 spoken and A1 written for the ordinary C permit, B1 spoken for early granting. What proof counts, who is exempt, and what changes by nationality and canton.
FAQ
Questions we are asked most
Who makes KK Studio apps?
KK Studio is an independent app studio in Switzerland, run by its founder, KK, who designs and builds every app: language learning, first-alphabet apps for young children, citizenship test preparation and small everyday tools.
Do the apps collect my personal data?
No. The apps collect no personal data and contain no ads, analytics or tracking. What you learn or create stays on your device, or in your own iCloud when you turn on sync in an app that offers it. The privacy policy explains each app one by one.
How much do the apps cost?
Most apps are free to download and unlock their full content with an in-app purchase. Depending on the app, that is a one-time purchase or a subscription, and the App Store or Google Play shows the price before you pay. Apple and Google handle payments and refunds, so KK Studio never sees your payment details.
Which devices do the apps run on?
The apps are made for iPhone and iPad. Aplomby, BrainWeave and Grüezi also run on Mac, and the language apps Sawasdee, Grüezi, Willkommen, Allegra, Hangul Path and Michi are on Google Play for Android too, along with a few others. Each app’s page has its download links.
Do I need an account?
No. There is no KK Studio account to create, and no app asks you to sign up or log in. Apps that sync between your devices use the iCloud account that is already on them.
How do I get help or send feedback?
Write to welcome@kk-studio.ch in English, German or Thai, or use the feedback form below. Every message is read by the person who built the app.
Feedback
Your feedback matters
We are always looking to improve our apps and serve you better. Whether it is a feature request, a bug report, or just a kind word — we would love to hear from you.
Every piece of feedback helps us build better apps.