Zero tracking by design
We never add analytics, ad SDKs or fingerprinting.
Pure Android studio
Hand‑built Android apps that live only on your phone
We create offline‑first Android experiences in Kotlin and Jetpack Compose. No hidden IDs, no surprise services after install.
- Pure Android
- Offline focus
- No ad identifiers
Chicken Mahjong
- Pure Android
- Kotlin
- Jetpack Compose
- Offline focus
- Accessible
- Privacy first
12:30
Streak7
Week
Our app
Chicken Mahjong
Chicken Mahjong follows our recipe: native, fast to open, and quiet about your data.
- Operates without internet
- Stores data locally on your device
- Requests only needed permissions
- No accounts, no ads, no analytics SDKs
Our craft
From sketch to launch, we handle the gritty details of native Android work.
Native Android apps
Kotlin from day one. Apps that feel at home on Android and run on modest devices.
Compose UI
Declarative screens with Material 3, adaptive layouts and smooth motion.
Local‑first data
Room and DataStore keep everything on‑device, so the app works in a tunnel or on a plane.
Battery & performance
We profile start‑up, jank and background work, then monitor Android Vitals after each release.
Accessibility built‑in
TalkBack labels, high contrast and large‑text support are included from the start.
Long‑term care
Signed builds, staged rollouts on Google Play, and steady updates as Android evolves.
Our commitments
Four non‑negotiable rules we follow on every project.
On‑device by default
All data is processed and stored locally on the phone.
Battery discipline
Background work is treated as a cost and measured carefully.
Accessible interfaces
Screens work with 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
Our workflow
Four clear steps from first call to ongoing support. Each step leaves a tangible outcome.
Discovery
Define the problem, target users, and strict privacy limits.
Architecture
Sketch screens, data flow and permissions before writing code.
Build
Kotlin, Compose and tests delivered in incremental builds you can try.
Release & care
Staged rollout on Google Play, then monitoring, fixes and updates for new Android releases.
One-way data flow: the interface observes state, and the repository owns the data.
Trusted toolbox
A lean set of tools that keeps our apps maintainable.
Kotlin
Concise, null‑safe Kotlin code that's easy to review.
Coroutines & Flow
Coroutines & Flow for clean async and state handling.
Jetpack Compose
Jetpack Compose for adaptive UI on phones and tablets.
Room
Room provides a typed local database for offline storage.
WorkManager
WorkManager runs reliable background jobs within battery limits.
Hilt
Hilt delivers testable dependency injection.
Gradle CI/CD
Gradle CI/CD ensures repeatable builds and checks.
Play Console
Play Console handles staged rollouts and release tracking.
Questions, answered
Brief answers about our approach.
What does LEMPI 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 dive deep into a single platform.
What do you do with user data?
All data stays on the device. No analytics, no ad SDKs, no data selling.
How can I contact you?
Email orinolinaq940@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
LEMPI SP Z O O is an Android development studio. Meet the team behind the apps.
- CompanyLEMPI SP Z O O
- DUNS438482653
- Address97 a Ul. Lotnicza Banino, 80-297
- Phone+48794769935
- Websitelempisp.ink
Start a conversation
Tell us about your project. Your email app will open with a ready‑to‑send 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