I built a no-root Android system optimizer that runs real shell commands via Shizuku — here's how it works

Richard Anicola — Tue, 01 Sep 2026 05:52:49 +0000

Hey DEV community! I'm Richard, a solo developer, and I want to share a project I've been building called DPHMS (Doctor Power House Mobile Solutions) — a Shizuku-powered Android system optimizer that runs real shell commands without root access.

The Problem

Most Android "cleaner" and "optimizer" apps are garbage. They kill background processes that just restart immediately, show fake "junk cleaned" numbers, and serve ads. They don't actually do anything meaningful because they don't have the permissions to run real system commands.

The Solution: Shizuku

Shizuku is an open-source framework that lets apps execute shell commands with ADB-level permissions — without root. It works by running a service with elevated permissions that other apps can communicate with via IPC.

DPHMS uses Shizuku to run actual pm, cmd, settings, and dumpsys commands that real system optimizers use. No fake numbers, no placebo effects.

What DPHMS Does

Four tiers:

Lite (Free)

Force-stop apps
Clear app cache
Basic system info

Pro ($2.99)

Everything in Lite, plus:
App Ops management (per-app permission control via cmd appops)
Bloatware freezer (pm disable-user)
Cache partition cleaner
10 tabs of system tools
Expandable App Ops cards with direct System Settings links

Pro+ ($4.99)

Everything in Pro, plus:
Dr.PHMS AI Terminal — a natural language command interface that translates plain English into Shizuku shell commands
Optional LLM API key support (Groq/Gemini free, OpenAI paid)
Falls back to offline pattern matching without a key
3-layer safety confirmation system for destructive actions
12 tabs total

NetGuard ($1.99)

Standalone firewall/network manager
Per-app network control

How the AI Terminal Works

The Dr.PHMS AI Terminal (Pro+ only) accepts natural language like:

"stop all background apps that are draining my battery"

And translates it into actual shell commands:

for pkg in $(pm list packages -3 | sed 's/package://'); do
  am force-stop $pkg
done

It uses a 3-layer confirmation system:

Parse the intent
Classify risk level (safe / moderate / dangerous)
Show the exact commands for approval before execution

With an LLM API key (Groq free tier, Gemini free tier, or OpenAI), it handles complex multi-step commands. Without a key, it falls back to offline pattern matching for common operations.

Tech Stack

Native Android (Java)
Shizuku for elevated shell command execution
Material Design with custom dark theme (#121212)
PayPal for in-app purchases
PWA splash page at dphms.vercel.app

Get It

All versions are available at dphms.vercel.app:

Version	Price	Key Features
Lite	Free	Force-stop, clear cache
Pro	$2.99	10 tabs, App Ops, bloatware freezer
Pro+	$4.99	12 tabs, AI Terminal
NetGuard	$1.99	Firewall/network manager

Tested on Moto G 2024 Power 5G running Android 15.

What's Next

F-Droid submission in progress
More AI Terminal patterns
Widget support (4x1)

This is a solo project built with love and AI assistance. The splash page footer says it all: "Built with love & AI — every line of code, every late night, every breakthrough."

Feedback welcome! 🚀

DEV Community: Richard Anicola