Hari Prabhu Hari Prabhu

Hari Prabhu

Crafting high-performance, open-source Android apps and system utilities that solve real everyday problems. Powered by modern Kotlin, reactive Jetpack Compose, and expressive Material You design — engineered for speed, fluid haptics, and delightful utility.

Flagship App Showcase

Experience each app with interactive preview galleries. Live theme harmony & direct app portals.

Ever Dialer
Ever Dialer
Open-Source Google Dialer Replacement
#01 Flagship
Material Design 3 In-Call Quick Notes Dynamic Colors
Ever Dialer Screenshot 1 Ever Dialer Screenshot 2 Ever Dialer Screenshot 3 Ever Dialer Screenshot 4 Ever Dialer Screenshot 5
Ever Haptics
Ever Haptics
System-Wide Haptic Vibration Engine
#02 Flagship
Haptic Engine System Vibrations Custom Waveforms
Ever Haptics Screenshot 1 Ever Haptics Screenshot 2 Ever Haptics Screenshot 3 Ever Haptics Screenshot 4 Ever Haptics Screenshot 5
Ever Call Recorder
Ever Call Recorder
Non-Root Dual-Sided Call Recorder
#03 Flagship
Shizuku API No-Root Capture Lossless Audio
Ever Call Recorder Screenshot 1 Ever Call Recorder Screenshot 2 Ever Call Recorder Screenshot 3 Ever Call Recorder Screenshot 4 Ever Call Recorder Screenshot 5
Ever Wall
Ever Wall
Depth Wallpaper & Screen Customizer
#04 Flagship
Depth Wallpaper Music Wallpapers Screen Customizer
Ever Wall Screenshot 1 Ever Wall Screenshot 2 Ever Wall Screenshot 3 Ever Wall Screenshot 4 Ever Wall Screenshot 5
About Me

The mind behind the apps

Hari Prabhu
Hari Prabhu
Independent Android Dev
0
Apps
0%
OSS

Hi, I'm Hari 👋

@SVHP · coolappstore

I'm an independent Android developer who builds apps that actually solve real problems in everyday life — and sometimes things so unique, you didn't know you needed them until you try them.

Every tap, every scroll, every animation should feel delightful. I craft my apps with Kotlin, Jetpack Compose, and a deep love for Material You design.

Everything I build is open source and made with care. I believe great software should solve real problems without getting in the way.

My Apps

Things I've built

Each app is crafted with care, open source, and designed to feel truly native to Android.

Skills & Technologies

Tools of the trade

The modern Android stack, frameworks, and architecture patterns I use to craft fast, responsive, and native experiences.

Kotlin

Language

Modern, expressive, and type-safe language powering first-class Android development.

Explore docs kotlinlang.org

Jetpack Compose

UI Toolkit

Android's modern declarative UI toolkit with reactive state and fluid animations.

Explore docs developer.android.com

Android SDK

Framework

Core framework APIs, system services, background workers, and lifecycle-aware architecture.

Explore docs developer.android.com

Material You

Design System

Material Design 3 with dynamic wallpaper extraction, adaptive color harmonies, and haptics.

Explore docs m3.material.io

Koin DI

Architecture

Pragmatic, lightweight dependency injection DSL built purely for Kotlin and Android apps.

Explore docs insert-koin.io

Shizuku

System API

Directly invokes elevated system APIs with ADB privileges without requiring root access.

Explore docs shizuku.rikka.app

GitHub

VCS & CI/CD

Version control, collaborative workflows, automated CI/CD builds, and open-source release hosting.

Explore repos github.com/hari161008

Coroutines & Flow

Concurrency

Non-blocking asynchronous programming, structured concurrency, and reactive StateFlow streams.

Explore docs kotlinlang.org

Room Database

Persistence

Robust SQLite object-mapping abstraction with compile-time query verification and Flow observation.

Explore docs developer.android.com

Jetpack Navigation

Routing

Type-safe destination routing, animated screen transitions, backstack management, and deep links.

Explore docs developer.android.com

Android WebView

Web Bridge

Embedded web engine, bi-directional JavaScript bridges, and high-performance hybrid rendering.

Explore docs developer.android.com

Open Source

Ecosystem

Committed to 100% transparent, privacy-first, community-driven free software for everyone.

View projects github.com/hari161008
Available for Android & Web Collaborations
Let's Connect

Got an idea? Let's build.

Whether you want to collaborate, report a bug, or just say hello — I'm always up for a good conversation.