OTG Master lets you mount VeraCrypt, LUKS and BitLocker-encrypted USB drives, and read Mac APFS drives, directly on your Android device — no root required. Connect an encrypted volume via USB OTG, enter your password or use your fingerprint, and access your encrypted files through Android's built-in Files app. Unmount safely when done. FEATURES • Multiple Encryption Formats — mount VeraCrypt, LUKS1, LUKS2 and BitLocker volumes (BitLocker with its password or 48-digit recovery key) • Broad File System Support — read and write files on FAT32, exFAT, NTFS and ext4 partitions • Mac Drives — read APFS drives, unencrypted or encrypted with a password, case-sensitive or not • Read-Only Mode — optionally mount partitions safely without risking accidental modifications • ext4 Repair — a drive that wasn't unmounted cleanly opens read-only; one tap replays its journal, as Linux would, and makes it writable again • Auto Mount — automatically unlocks known drives on connect using biometric authentication • Hub Support — multiple USB drives connected via a hub are all prompted in a single biometric step • Keyfile Support — use a keyfile in addition to or instead of a password • Custom PIM — supports non-default PIM values for stronger key derivation • Cipher Selection — AES, Serpent and Twofish, VeraCrypt's five cascades of them, and SHA-512 or Argon2id key derivation • Encrypt a Drive — turn a USB partition into a new VeraCrypt volume (FAT32 or exFAT inside), with any of those ciphers, a PIM and keyfiles • Format — erase a partition in place as FAT32 or exFAT, keeping its encryption and password • Tablet Layout — on a wide screen, mounted drives sit beside the unlock form • Partitioned Disks — scans MBR/GPT partition tables and lets you pick the exact volume to unlock • No Root Required — works on standard, unmodified Android devices • No Cloud, No Tracking — your files never leave your device REQUIREMENTS • Android 8.0 (Oreo) or later • USB OTG cable or adapter • A VeraCrypt