We build Android apps for business, everyday tasks and learning. Where it makes sense the database stays on the phone itself: it works offline and the data stays with its owner.
Working through the scenario: what a person does in the app every day, and what once a month.
Screens and navigation designed for a thumb, not a mouse.
A local SQLite database with a data-backup export; synchronisation is a separate step when it is actually needed.
An APK build and a distribution method agreed with you: Google Play or direct delivery.
After launch, support and further fixes are agreed separately.
Proof and examples
“My Salon”
APP
An app for a nail technician: appointments, client cards, a price list and money with material costs included. The whole database is SQLite on the phone — no server, no accounts. Its distribution status and privacy policy are documented separately from this portal.
A network monitoring console for Android: a Wi-Fi scanner (SSID, channel, band, signal level, security type) and serving-cell data. An engineering tool: the build is installed manually, it is not on Google Play.