Apps that help
you learn.
OfBuilder is an indie studio crafting bright, privacy-first apps for exams, citizenship, sleep, learning and money.
Life in the UK Test
US Citizenship Test
Canadian Citizenship Test
Australian Citizenship Test
Einbürgerungstest
Danish Citizenship Test
KNM Inburgering
Driving Theory UK
Motorcycle Theory UK
LGV & HGV Theory
PCV & Bus Theory
A+ Core 1Life in the UK TestUS Citizenship TestCanadian Citizenship TestAustralian Citizenship TestEinbürgerungstestDanish Citizenship TestKNM InburgeringDriving Theory UKMotorcycle Theory UKLGV & HGV TheoryPCV & Bus TheoryA+ Core 1
apps live on Google Play
focused product suites
countries reached
citizenship tests covered
Free in your browser
Take a free mock test. Right now.
16 exams with free mock tests, readiness checks and practice questions. No download, no sign-up.
Question of the day
A new question every day
Six suites
One studio. Six families of apps.
Related apps share one polished system, so switching from one to the next feels familiar.
Citizenship Suite
Pass your citizenship test with confidence in 7 countries.
One familiar, friendly study system for new citizens. Pick your country, then learn by topic, take timed mock exams and see your readiness climb before test day.
Explore the suite →Driving Theory Suite
Every UK DVSA theory test, in one trusted toolkit.
Car, motorcycle, LGV/HGV and bus/coach. Each app is tuned to its own DVSA test, with spaced repetition, hazard perception practice and realistic mock tests.
Explore the suite →IT Certification Suite
Exam-ready for CompTIA, one certification at a time.
Focused prep apps for A+, Network+, Security+ and CySA+. Questions are mapped to the exam objectives, with drills, full-length timed exams and analytics that find your weak domains.
Explore the suite →Little Sparks
Bright apps for curious little minds.
Playful learning by day and calming bedtime stories by night. Little Sparks apps are made for small hands and big imaginations, and are built to be safe for kids and stress-free for parents.
Explore the suite →Noor
Faith-first apps for everyday Muslim life.
Noor means light. These apps bring trusted Islamic knowledge, calm reflection and healthy habits into daily life, with respect, clear sources and zero ads where it matters.
Explore the suite →Everyday Essentials
Small daily apps for a sharper mind, better sleep and calmer money.
Brain training and puzzles, an AI sleep coach, and private money tools that never ask for your bank login. Quick to open and genuinely useful every day.
Explore the suite →Featured
Every app has its own home.
Tap any app to open its own mini-website, ready to share with friends, students or customers.
Why OfBuilder
Small studio. Big care.
Privacy-first
No bank linking, minimal data and clear policies for every app.
Works offline
Study on the train or read stories on a plane. No signal needed.
AI where it helps
Personal stories, sleep plans and sourced answers, never AI for show.
No dark patterns
Fair pricing, one-time unlocks where we can and no tricks.
Shipped fast, polished often
Small studio, quick updates, and we listen to every review.
The studio
Built by a tiny team that ships.
OfBuilder started with a simple idea: everyday apps should be beautiful, honest and genuinely helpful. No bloat, no tricks and no mandatory subscriptions.
Today we run 24 apps across six suites, used in 176 countries, from people passing their citizenship test to parents settling their kids at bedtime.
In the lab 🧪
- 🕌Muslim WiseIslamic life companion · NoorComing soon
- 🤲MindfulMuslimIslamic mindfulness · NoorComing soon
- 🌸Sakinah FitFitness for Muslim women · NoorComing soon
- 👶ShishuAIAI baby care · Little SparksComing soon
- 🌟LifeWiseAI life coachComing soon
Find your next favourite app.
All 24 OfBuilder apps are waiting for you on Google Play.