Kotlin
Concise, null‑safe Kotlin code that is easy to review.
Native Android studio
Android apps that live on your phone, not in the cloud
We design offline‑first Android apps in Kotlin and Jetpack Compose. No trackers, no advertising ID, no hidden behavior after install.
- Android‑native
- Offline‑first
- No advertising ID
12:30
- Android‑native
- Kotlin
- Jetpack Compose
- Offline‑first
- Accessibility
- Privacy by design
How we build
Four steps from first call to long‑term care. Each step leaves you with something concrete to review.
Discovery
We define the problem, the users and the boundaries of the app.
Architecture
We sketch screens, data flow and permissions before writing production code.
Build
Kotlin, Compose and tests, delivered in small builds you can install and try.
Release and care
Staged rollout on Google Play, then monitoring, fixes and updates for new Android versions.
One-way data flow: the interface observes state, and the repository owns the data.
What we build
From sketch to release, we handle the steady work that keeps Android apps reliable.
Native Android apps
Kotlin from day one. Apps that feel at home on Android and run smoothly on modest hardware.
Jetpack Compose UI
Declarative screens with Material 3, adaptive layouts and purposeful motion.
Offline‑first data
Room and DataStore store everything locally, so the app works in a plane or a tunnel.
Battery & performance
We profile start‑up, jank and background work, then watch Android Vitals after each release.
Accessibility
TalkBack labels, readable contrast and large‑text support are built in, not added later.
Long‑term care
Signed builds, staged rollouts on Google Play and steady updates as Android evolves.
0trackers in our apps
100%of app data kept on the device
1platform we build for
Our app
Velvet Reel
Velvet Reel follows our workshop method: native, quick to open and quiet about your data.
- Works without a network
- Keeps data in local storage
- Requests only needed permissions
- No accounts, no ads, no analytics SDKs
Questions, answered
Short answers about how we work.
What does foxintergr.com do?
foxintergr.com designs, builds and maintains native Android apps, focusing on offline use and user privacy.
Which platforms do you support?
Android only. We go deep on one platform instead of spreading thin.
What do you do with user data?
Our apps keep data on the device. We do not run analytics or ad SDKs, and we do not sell data.
How can I contact you?
Write to sophieendric@gmail.com or use the contact form on this page.
Do you support apps after release?
Yes. We ship fixes, adapt to new Android versions and keep dependencies current.
Tools we trust
A modest toolbox that keeps apps easy to maintain.
Coroutines & Flow
Coroutines and Flow for background work without callback chaos.
Jetpack Compose
Jetpack Compose screens that adapt to phones and tablets.
Room
Room provides a typed local database for offline storage.
WorkManager
WorkManager runs reliable jobs while respecting battery limits.
Hilt
Hilt injects dependencies, keeping modules testable.
Gradle CI/CD
Gradle CI/CD runs repeatable builds and checks on every change.
Play Console
Play Console handles staged rollouts, vitals and release tracking.
What we promise
Four rules we never bend, no matter the project.
Zero tracking by design
We add no analytics, ad SDKs or fingerprinting.
On‑device by default
Your data is processed and stored on the phone.
Battery discipline
We treat background work as a cost and measure it.
Accessible interfaces
Screens work with TalkBack, large text and sensible contrast.
0trackers in our apps
0advertising IDs used
100%of app data kept on the device
1platform we build for
Plain terms
What we do
- Build native Android apps in Kotlin
- Keep user data on the device
- Explain every permission in plain words
- Support what we ship after release
What we never do
- Sell or share personal data
- Add advertising IDs or tracking SDKs
- Hide behaviour behind vague policies
- Ship features nobody asked for
Studio details
foxintergr.com is an Android development studio. Here is who stands behind the apps.
- Companyfoxintergr.com
- Address1 Myrtle Road, Warley, Brentwood, CM14 5EG
- Phone+48794628373
- Websitefoxintergr.com
Start a conversation
Tell us what you are building. Your email app opens with a prepared message.
Privacy, in short
Our apps collect no personal data, use no advertising ID and include no third‑party trackers. Everything stays on your device. Read the full policy for each app below.
- No personal data collected
- No advertising ID
- Delete the app, delete your data
Privacy policies