Mobile development
Our mobile apps are built with Flutter and Dart.
Technology
How our apps are built
The tools and development steps behind our products.
Tools
Our technology
Each tool supports a specific part of our apps or this website.
On-device storage
Game progress and unfinished puzzles are saved on the device.
Advertising
Our app policies describe AdMob advertising and regional consent settings.
App stores
Released apps link to their store pages for downloads.
Cloud services
Our vocabulary app in development uses Firebase for accounts and sync, and Groq for optional AI word details.
Website
Node.js builds this static website. Python prepares the image assets.
Development
How the parts work together
Shared app code
We use Flutter and Dart to develop mobile apps from a shared codebase.
AI requests
Our vocabulary app in development sends AI word requests through a server function. The AI provider receives the word and language pair, without account details.
Storage and sync
Game progress is stored on the device. Our vocabulary app in development also uses Firebase for account data and sync.
Process
Plan → Build → Release → Improve
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01
Plan & design
Choose the main features and design how people will use them.
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02
Build
Build the features and check them on the target devices.
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03
Release
Prepare the release, store listing and privacy information.
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04
Improve
Review feedback, fix issues and update the app.
Questions about our technology?
Contact us about the tools or features described here.