Kotlin
Null‑safe Kotlin code that is easy to review.
Pure Android development
We build Android apps that stay local, never leak data
BATTO SP Z O O delivers offline-first Android apps using Kotlin and Jetpack Compose. No trackers, no advertising IDs, no hidden behavior after install.
- Native Android
- Offline-first
- No ad IDs
Offline readyZero trackersMaterial 3 UI
12:30
Streak7
This week
Our capabilities
From concept to release, we handle every Android detail with rigor.
Native Android apps
Kotlin from day one. Apps run smoothly on modest devices.
Compose interfaces
Declarative UI with Material 3, adaptive layouts and purposeful motion.
Offline data handling
Room and DataStore store everything locally, so the app works anywhere.
Battery and performance
We profile start‑up, jank and background work, then monitor Android Vitals.
Accessibility built‑in
TalkBack labels, high contrast and large‑text support are integral.
Long‑term maintenance
Signed builds, staged Play rollouts and updates for new Android releases.
Our development flow
Four phases from initial call to ongoing support. Each phase yields a tangible deliverable.
Discovery
Define the problem, target users and absolute constraints.
Architecture
Sketch screens, data flow and permissions before any production code.
Build
Write Kotlin, Compose and tests, deliver incremental builds for review.
Release & care
Stage rollout on Play, monitor vitals, and provide fixes for new Android versions.
One-way data flow: the interface observes state, and the repository owns the data.
12:30
Streak7
This week
Candy Pop Factory
Candy Pop Factory
Candy Pop Factory follows our recipe: native, fast to launch and silent about your data.
- Works without network
- Stores data locally on the device
- Requests only required permissions
- No accounts, no ads, no analytics SDKs
Trusted toolset
A concise toolbox that keeps code maintainable.
Coroutines & Flow
Coroutines manage background work without callback chaos.
Jetpack Compose
Compose creates adaptive screens for phones and tablets.
Room
Room provides a typed local database for offline storage.
WorkManager
WorkManager runs reliable jobs within battery limits.
Hilt
Hilt injects dependencies for testable modules.
Gradle CI/CD
Gradle CI/CD enforces repeatable builds and checks.
Play Console
Play Console handles staged rollouts and release tracking.
Our commitments
Four non‑negotiable rules we follow on every project.
Zero tracking by design
We never add analytics, ad SDKs or fingerprinting.
On‑device processing
All data stays on the phone by default.
Battery discipline
Background work is measured and kept minimal.
Accessible UI
Screens support TalkBack, large text and proper 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
What we never do
Build native Android apps in Kotlin
Sell or share personal data
Store user data locally
Add advertising IDs or tracking SDKs
Explain every permission clearly
Obscure behavior with vague policies
Provide post‑release support
Ship unrequested features
Frequently asked questions
Brief answers about our process.
What does BATTO SP Z O O do?
We design, build and maintain native Android apps focused on offline use and privacy.
Which platforms do you support?
Android only. We specialize deeply in this platform.
What do you do with user data?
Data stays on the device. No analytics, no ad SDKs, no data sales.
How can I contact you?
Email yejaqivigi01@gmail.com or use the contact form on this page.
Do you support apps after release?
Yes. We deliver fixes, adapt to new Android versions and keep dependencies current.
Studio details
BATTO SP Z O O is an Android development studio. Meet the team behind the apps.
- CompanyBATTO SP Z O O
- DUNS850956189
- Address7 c-8 a-3 Ul. Nadrzeczna Wólka Kosowska, 05-552
- Phone+48794771183
- Websitebattospzoo.ink
Start a conversation
Tell us about your project. Your email client will open with a pre‑filled message.
Privacy summary
Our apps collect no personal data, use no advertising IDs and include no third‑party trackers. Everything remains on your device. Read each app’s full policy below.
- No personal data collected
- No advertising ID
- Delete the app, delete your data
Privacy policies