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Native Android studio

Not intrusive, but private

SIMBA FOSTING LTD builds offline‑first Android apps in Kotlin and Jetpack Compose. No trackers, no advertising ID, no surprises after install.

See Bolt BenchContact the studio
  • Android native
  • No ad ID
  • Offline first
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Bolt Bench
Zero trackersRuns offlineMaterial You UI
  • Jetpack Compose
  • Privacy by design
  • Android native
  • Accessibility
  • Kotlin
  • Offline first

Tools we trust

Key technologies we use on every project.

WorkManager

WorkManager handles reliable background jobs within battery limits.

Android Vitals

Android Vitals tracks performance after each release.

Kotlin

Concise, null‑safe Kotlin code that's easy to review.

Coroutines & Flow

Coroutines & Flow for background work without callback chaos.

Gradle CI/CD

Gradle CI/CD ensures repeatable builds and checks.

Room

Room provides a typed local database for offline data.

Hilt

Hilt keeps dependencies testable and modular.

Jetpack Compose

Jetpack Compose creates adaptive, declarative UI.

Services

From a clean slate to a maintained release on Google Play.

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.

Release & care

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

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

How we build

Four steps from first call to long‑term care. Each leaves you with something concrete to review.

  1. Discovery

    We define the problem, target users and strict privacy limits.

  2. Architecture

    We sketch screens, data flow and permissions before any production code.

  3. Build

    Kotlin, Compose and tests delivered in small builds you can install and try.

  4. Release & care

    Staged rollout on Google Play, then monitoring, fixes and updates for new Android versions.

ScreenComposeReducerintent → stateUseCasedomain rulesDataRoom · files

One-way data flow: the interface observes state, and the repository owns the data.

Our app

Bolt Bench

Bolt Bench follows the same principles: native, offline‑first and quiet about your data.

  • No accounts, no ads, no analytics SDKs
  • Stores data locally on the device
  • Works without a network
  • Requests only required permissions
  • Android
  • Kotlin
  • Offline first
  • No ad ID
Read the privacy policy
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Bolt Bench
12:30
Bolt Bench
29:00
Status
DetailAction
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Bolt Bench

Questions people ask

Common queries we receive.

How can I contact you?

Write to jeremylangford773@gmail.com or use the contact form on this page.

What does SIMBA FOSTING LTD do?

We design, build and maintain native Android apps focused on offline use and 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 run no analytics or ad SDKs and do not sell data.

Do you support apps after release?

Yes. We ship fixes, adapt to new Android versions and keep dependencies current.

Where we don't compromise

Core aspects we never shortcut.

On‑device by default

All data is processed and stored locally on the phone.

Accessible interfaces

Screens work with TalkBack, large text and sensible contrast.

Zero tracking by design

We add no analytics, ad SDKs or fingerprinting.

Battery discipline

Background work and wake‑ups are measured and kept minimal.

Clear terms

What we do

  • Explain every permission in plain words
  • Support what we ship after release
  • Build native Android apps in Kotlin
  • Keep user data on the device

What we never do

  • Hide behaviour behind vague policies
  • Ship features nobody asked for
  • Sell or share personal data
  • Add advertising IDs or tracking SDKs

About the studio

SIMBA FOSTING LTD builds the apps you see here. Below are the details behind the studio.

Get in touch

A quick message opens your email app with a pre‑filled draft.

jeremylangford773@gmail.com

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