armandllllefort@gmail.com+48732608365
Get in touch

Kotlin & Compose, engineered in‑house

Not cloud‑based, but fully on‑device Android apps

At sendinbl.com we build every app the same way: offline‑first, no trackers, no advertising ID.

Try Drift LoopContact the studio
  • Android‑native
  • Offline‑first
  • No advertising ID
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Drift Loop
45:00
Status
DetailAction
Works offlineZero trackersMaterial You UI

Where we don't compromise

Non‑negotiable aspects of our work.

Zero tracking by design

We add no analytics, ad SDKs or fingerprinting.

On‑device by default

All data is processed and stored locally on the phone.

Battery discipline

Background work and wake‑ups are measured and minimized.

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
  • Android‑native
  • Kotlin
  • Jetpack Compose
  • Offline‑first
  • Accessibility
  • Privacy by design

Services

All Android app components, built in‑house from concept to launch.

Native Android apps

Kotlin from day one. Apps run smoothly on modest hardware and feel at home on Android.

Compose interfaces

Declarative UI with Material 3, adaptive layouts and purposeful motion.

Offline‑first data

Room and DataStore store everything locally, 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

TalkBack labels, contrast and large‑text support are built in, not added later.

Release & care

Signed builds, staged rollouts on Google Play and ongoing updates as Android evolves.

12:30
Drift Loop
45:00
Status
DetailAction

What it looks like

Drift Loop

Drift Loop follows the same rules as every app we ship: native Android, fast launch, no data leaves the device.

  • Operates without network
  • Stores data locally on your device
  • Requests only required permissions
  • No accounts, ads, or analytics SDKs
  • Android
  • Offline‑first
  • No advertising ID
  • Kotlin
Read the privacy policy

How we work

Four stages, each delivering a tangible result.

  1. Discovery

    Define the problem, target users and absolute prohibitions.

  2. Architecture

    Sketch screens, data flow and permissions before any production code.

  3. Build

    Write Kotlin, Compose and tests; deliver small builds for quick validation.

  4. Release & care

    Stage rollout on Google Play, then monitor, fix and update for new Android releases.

Tools we trust

Core technologies we apply to every project.

Kotlin

Concise, null‑safe code that is easy to review.

Coroutines & Flow

Background work and state without callback tangles.

Jetpack Compose

Declarative screens that adapt to phones and tablets.

Room

A typed local database for offline data.

WorkManager

Reliable background jobs that respect battery limits.

Hilt

Dependency injection that keeps modules testable.

Gradle CI/CD

Repeatable builds and checks on every change.

Play Console

Staged rollouts, vitals and release tracking.

Common questions

Typical first‑time inquiries.

What does sendinbl.com 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 one platform instead of spreading thin.

What do you do with user data?

Our apps store data on the device. We run no analytics, no ad SDKs, and we never sell data.

How can I contact you?

Email armandllllefort@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.

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

Company details

sendinbl.com creates the apps shown here. Below are the studio’s details.

Get in touch

Send a short note about your project — your email app handles the rest.

armandllllefort@gmail.com

Privacy, in short

Our apps collect no personal data, use no advertising ID and contain no third‑party trackers. Everything stays 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