JRummy Apps Inc.

Bootstrapped catalog of 25+ Android utility, root, file management, customization, and security apps shipped to Google Play between 2010 and 2017.

Flagship all-in-one suite for rooted Android — bundling a ROM manager, root file browser, terminal and script runner, CPU tuner, app backup, font and boot-animation installers, and a build.prop editor in a single app, distributed as ROM Toolbox Lite (free) and ROM Toolbox Pro (paid).

• ROM browser, downloader, and recovery flasher
• Root file browser with read/write system mount
• Terminal emulator with shell-script library
• CPU governor and frequency tuner with on-boot profile
• APK and data backup with bulk freeze
• Custom font, boot animation, and boot logo installers
• build.prop editor with safe rollback

One of two JRummy apps to sustain top-10 paid placement on Google Play; principal revenue driver for the catalog.

Standalone root-aware file manager that mounted system partitions read/write, edited file permissions and ownership, browsed APKs and SQLite databases, and integrated with Dropbox, Google Drive, OneDrive, and Box as additional roots.

• Root file system with read/write system mount
• APK extraction and SQLite database browsing
• ZIP/TAR/GZ/RAR/7z archive handling and recovery-flashable ZIP support
• Cloud storage integration (Dropbox, Google Drive, OneDrive, Box)
• Built-in syntax-highlighting text editor
• Inline image, video, audio, and HTML preview

Largest total install base in the catalog and the most-frequent companion install for the rest of the JRummy apps.

Precision CPU tuner exposing the kernel's governor selection, per-core frequency caps, and on-boot init scripts. Began as a Motorola Droid X / Milestone overclock module and was generalized into a universal CPU tuner.

• Live governor switching (ondemand, conservative, performance, interactive, etc.)
• Per-CPU min/max clock-speed caps within the kernel's allowed range
• On-boot tune persistence via init.d script
• Real-time CPU frequency and load graphs
• Per-device profile import/export

The other half of the chart-topping pair alongside ROM Toolbox — sustained top-10 paid placement on Google Play.

BusyBox installer and runtime for Android. Bundled freshly compiled BusyBox binaries for ARM, ARM64, x86, and MIPS, generated TWRP/CWM-flashable ZIPs, and shipped a Material-Design script runner and applet reference for the ~340 bundled applets. Open-sourced on GitHub.

• One-click BusyBox install with correct symlink layout
• TWRP/CWM-flashable ZIP generation
• Per-architecture binary builds (ARM, ARM64, x86, MIPS)
• Script library and editor with syntax highlighting
• Applet reference for ~340 bundled BusyBox applets
• Material-Design UI and theme engine

Second BusyBox installer ever published to Google Play; bundled binaries open-sourced for the community.

System-font installer for Android with a 4,300+ font catalog. Shipped two installers — a root path that swapped system font files directly with safe rollback, and a non-root path that used Samsung's FlipFont to support tens of millions of devices that didn't need root.

• 4,300+ font catalog (free for personal use, most for commercial)
• Live font preview from catalog or filesystem
• FlipFont path for non-rooted Samsung and partner devices
• Root path with auto-detection of correct system font file and safe rollback
• Encrypted backups to internal storage, SD card, Dropbox, Google Drive, OneDrive
• Material-Design UI with handcrafted theme presets

Reached 5M+ users; the FlipFont path dramatically broadened the addressable market beyond rooted devices.

Editor for /system/build.prop with a syntax-highlighted code editor, autocomplete for known properties, an AOSP property reference, and automatic backups before every edit. The first build.prop editor on Google Play and the top-ranked one for years.

• Syntax-highlighted code editor with autocomplete
• Built-in dictionary of system properties with AOSP framework usage
• Properties grouped by category for discoverability
• Automatic backup with one-tap restore on every edit
• Share build.prop via NFC, Dropbox, Google Drive, or OneDrive

First-of-kind app and sustained top-ranking build.prop editor on Google Play; 1M+ downloads.

Boot-animation gallery, previewer, and installer for rooted Android. Bundled a curated catalog of community-made bootanimation.zip files, rendered high-quality in-app previews, and included a converter that turned animated GIFs into properly formatted bootanimation.zip files.

• Curated catalog of community bootanimation.zip files
• Full-screen high-quality preview before install
• GIF-to-bootanimation converter (auto-generates desc.txt)
• Install custom bootanimation.zip from SD card
• Backup and restore the existing boot animation
• Favorites and sharing

Standalone version of ROM Toolbox's ROM-management module. Pulled a curated catalog of custom ROMs and recovery images per device codename, verified MD5/SHA before install, and orchestrated the flash through TWRP or ClockworkMod recovery without leaving the device.

• Curated ROM catalog (CyanogenMod, AOKP, Paranoid Android, and more) per device
• TWRP and ClockworkMod recovery image install/update
• MD5 / SHA verification before flash
• Triggered Nandroid backup before each install

App backup, restore, and bulk-management tool for rooted Android — the catalog's answer to platform churn during ROM hopping. Handled APKs, app data, system apps, and SD-card data, with cloud sync and scheduled backups.

• APK + per-app data backup with one-tap restore
• Multi-select install / uninstall / freeze / disable across the full app list
• System app management and bloatware freezing
• Scheduled recurring backups
• Cloud sync to Dropbox, Google Drive, or OneDrive

One-tap diagnostic that confirmed real root access, identified the superuser implementation, reported the BusyBox version, and ran the Google SafetyNet attestation. Default first-install for anyone flashing a custom ROM or trying a one-click rooting tool.

• Real root access detection (vs. fake-root tools)
• Superuser implementation identification (SuperSU, Magisk, etc.)
• BusyBox version + applet count reporting
• SafetyNet attestation for Pay/banking app trust check
• Shareable plain-text diagnostic report

Side-project arcade game inspired by the Android 5.0 Lollipop easter egg — Bugdroid flying through a sea of swirly twirly lollipops in a Flappy-Bird-style side-scroller, launched alongside the Lollipop platform release.

• Tap-to-fly arcade gameplay with progressive difficulty
• Unlockable Android dessert characters
• Google Play Games leaderboards and achievements

Smaller utilities and side projects published under the JRummy Apps developer account.