DROFUS (ISO2USB) - Bootable USB creator & ISO burner

**Booting Guidance**

1.Determine Boot Mode：Assess if your computer operates in Legacy or UEFI boot mode, as this will dictate the type of partition table required。

2.Choose the Correct Partition Table：Within the application, select MBR for Legacy mode and GPT for UEFI mode。

3.Boot Using USB：After you have prepared a bootable USB, access your computer's boot menu and opt to boot from the USB drive。

**Compatible Devices**

- ✅ USB flash drives (OTG - No Root Required)

- ✅ USB SD card adapters (OTG - No Root Required)

- ✅ USB hard drives / SSDs (OTG - No Root Required)

- ✅ USB hubs (OTG - No Root Required)

- ✅ Internal SD card slots (Root Access Required)

**Supported Disk Image Formats**

✅ Modern GNU/Linux OS images, including Arch Linux, Ubuntu, Debian, Fedora, pop!_OS, Linux Mint, FreeBSD, BlissOS, and many others

✅ Raspberry Pi SD card images

✅ Official Microsoft Windows ISOs

✅ Apple DMG disk images

✅ Older GNU/Linux OS images prior to 2010 such as Damn Small Linux

DROFUS is an Android application designed to create bootable USB drives or transfer .iso/.dmg files to USB.

⚠️Warning: use at your own discretion. ⚠️

⚠️ A coin system is implemented; you can utilize the app for free by viewing rewarded advertisements, accumulate free coins, purchase coins, or buy the pro version to eliminate the coin requirement and ads. The decision is yours. ⚠️

⚠️ While no application can harm a USB device fundamentally, unstable OTG connections may lead to damage. It is the user's duty to maintain a stable OTG connection. Utilize high-quality connectors, reliable USB devices, ensure your phone's USB port functions properly, and keep your phone on a steady surface during operation. ⚠️

Pocket-Sized Powerhouse: How DROFUS Liberated Me from My Laptop

DROFUS transformed my Android device into a portable command center that made creating bootable drives feel like digital wizardry. Gone are the days of hunting for a working PC to revive an old laptop or test a new Linux distro – I now carry this power in my pocket. The first time I imaged Ubuntu directly onto a USB stick using just my phone and a $2 OTG adapter felt revolutionary, especially when booting my decade-old ThinkPad flawlessly. What hooks me isn’t just the convenience, but the startling breadth of compatibility: from testing Windows 11 ISOs to resurrecting retro machines with Damn Small Linux, DROFUS handled every niche format I threw at it.

The UEFI/Legacy boot wizard eliminated my partition table anxiety, while batch-writing Raspberry Pi images for friends became a coffee-break affair. Even the coin system feels fair – watching one ad to unlock a premium distro burn beats wrestling with bloated desktop software. Though OTG stability is crucial (I learned to keep my phone charging and perfectly still during writes), the thrill of holding a freshly imaged drive crafted entirely mobile-first outweighs the caution. For tinkerers, sysadmins, or anyone who breathes near terminal commands, DROFUS isn’t just an app – it’s emancipation from the desktop, packed into a brilliantly utilitarian interface.

Helpful FAQs:

Q: Does it truly detect Legacy vs. UEFI mode automatically?

A: While the app guides your partition choice, it doesn’t auto-detect your PC’s mode. Check your BIOS/UEFI settings first! The wizard simply explains why MBR/GPT matters based on your target system.

Q: Can I use DROFUS without coins or ads?

A: Yes! The free version lets you accumulate coins passively (1 daily) or earn them via ads. Permanent no-coin access requires a Pro license purchase ($4.99).

Q: Why does my USB show as corrupted after writing?

A: Most devices reformat automatically after imaging. If partitions appear broken on Android, plug the USB into your target computer – it should boot correctly! Phones rarely read bootable formats natively.

Q: How to ensure OTG stability during writes?

A: Critical steps:

Use high-quality OTG cables (avoid third-party dongles)

Plug your phone into a charger to prevent power dips

Place device on a flat surface – DO NOT move during write

Verify USB health beforehand (corrupted drives cause failures)

Q: Can I overwrite my phone’s internal storage accidentally?

A: Impossible. DROFUS only detects external USB/SD devices via OTG. Your internal storage is never exposed as a writable target.

Q: Why won’t my Windows ISO boot after writing?

A: Many Windows ISOs require UEFI with Secure Boot enabled and GPT formatting. Double-check your PC’s BIOS settings match the DROFUS partition selection.