Small, fast Android apps — several built for Germany.
DevCraftX is the publishing name for apps built by Jawad Khan, a React Native developer in Ingolstadt. Utilities that do one thing, work offline where they can, and don't ask for data they don't need.
Built for Germany
German-language apps for the German market
Leben in Deutschland Test 2026
Citizenship-test preparation with 300+ BAMF-based questions, nationwide and per federal state. Fully offline.
Deutsch
TranskriptGo: Sprache zu Text
Speech-to-text that runs Whisper Tiny entirely on your phone. No audio is ever uploaded.
On-device
Darf ich parken?
Scans German parking signs with the camera and tells you whether you can park — restrictions, Parkscheibe, permitted times.
Deutsch
Spritpreise in der Nähe
Compares current petrol and diesel prices and finds filling stations near you.
DeutschAlerts & trackers
Live data and personal logging
Earthquake Alerts – Live
Real-time monitoring on EMSC data with maps, magnitude filtering and custom geofenced alert zones.
FeedNest: Baby Tracker
Feeding, sleep and diaper tracking with growth charts and multi-baby support. Stored on your device.
AquaPaw — Water Reminder
Hydration tracking with reminders through the day.
Snow Day Predictor
Estimates the chance of a snow day from local forecast data.
Calculators
Live pricing and trade maths
Gold Calculator — Live Price
Gold value from live spot prices, all karats and major currencies.
Silver Calculator — Live Price
Silver value from live spot prices across weights and currencies.
Gold Rate Today
Daily gold rates at a glance.
Silver Rate Today
Daily silver rates at a glance.
Block Calculator
Estimates masonry blocks, mortar and materials for a wall.
Concrete Calculator
Concrete volume and mix quantities for slabs, footings and columns.
Tools
Media and utilities
Support
Bug reports, feature requests, data requestsGet in touch
Email is the fastest way to reach me about any DevCraftX app. Please include the app name and your Android version — it makes bugs much easier to reproduce.
kontakt@jawadkhan.dePrivacy & your data
What each app collects, which services it uses, and how to request deletion of your data under GDPR.
Read the privacy policy →All apps on Google Play
The full DevCraftX developer page, including anything newer than this list.
Open Google Play →