Different passwords reveal different private spaces.
No cloud, no account, no obvious footprint.
Infinite passwords → infinite realities.
Built for seed phrases, confidential files, travel risk, device loss, and moments where refusing to unlock is not realistic.
There is no "hidden volume", no warning flag, no evidence.
What you reveal is all anyone can ever see.
Sundy is designed for lawful privacy protection — securing personal and professional data from theft, device loss, or coercive border searches. Users are solely responsible for complying with the laws of their jurisdiction, including any applicable obligations to provide access to data on lawful demand. See our Terms of Service.
Sundy uses a multi-password privacy system where each password unlocks a completely separate vault inside the same file, folder, or audio track. There are no headers, no signatures, no visible traces pointing to the vault you did not open.
Different passwords → different realities.
Traditional encryption protects data. Sundy is built to also protect the fact, shape, and number of vaults you keep.
| Capability | Sundy | VeraCrypt | Cryptomator | macOS FileVault |
|---|---|---|---|---|
| Best for | ✓Hidden vaults, decoy access, 2FA/notes, and optional private drives. | Traditional encrypted containers and disks. | Encrypting files before cloud sync. | Protecting the whole Mac when powered off. |
| Forced unlock protection | ✓Unlimited passwords can open separate believable vaults. | ✕Hidden-volume model is limited and container-oriented. | ✕Not designed for decoy passwords. | ✕Not designed to hide selected datasets. |
| How it looks | ✓Files, folders, and audio tracks have no obvious Sundy markers. | Encrypted containers can still look suspicious. | Encrypted file and folder structure remains visible. | FileVault protection is visible as device-level encryption. |
| Secrets built in | ✓Offline 2FA, passwords, notes, and a private drive in one vault. | ✕No built-in 2FA or notes manager. | ✕No built-in 2FA or notes manager. | ✕No built-in 2FA or notes manager. |
| macOS setup | ✓Native macOS 26+ Apple Silicon workflow with no extra drivers or security downgrade. | May require extra setup depending on the system. | Runs as an app for cloud-folder encryption. | Built into macOS, but solves a different privacy problem. |
A complete privacy toolkit built around one idea: nobody should be able to prove what you're hiding.
Create as many believable vaults as you need. Each password opens its own view, and there is no master key that reveals everything.
One storage can hold separate vaults for different heirs. Give each person their own password, and they only unlock what was meant for them.
No obvious headers, signatures, or visible traces. A storage file looks like random data; an audio file still looks and plays like ordinary media.
Unlock with a structure of folders and files instead of a typed password. The exact tree is your key.
Audio mode stores a real encrypted vault inside the natural noise of a lossless audio file. The song still plays normally, while analysis sees random analogue noise.
Store 2FA secrets offline. They're decrypted only to generate a code, then wiped from memory.
Keep logins and secure notes inside the same vault — available the moment you unlock, no private drive required.
Open on demand as a normal drive in Finder. Drag, drop, preview, and edit files like any other drive.
No extra drivers, no security downgrade, and no complicated setup.
Pick a lossless WAV or AIFF file, and Sundy places encrypted storage inside the audio noise. To anyone else, it is still a song. To analysis tools, the hidden area looks like random noise. To you, it unlocks passwords, notes, 2FA secrets, or a private drive.
Sundy can also convert MP3, FLAC, MP4/M4A, or AAC sources into a lossless WAV first. Keep the audio lossless after creation — re-encoding or normalizing it can destroy hidden data.
This is the same WAV-sized file in two states: the original audio and a version initialized with hidden Sundy storage.
The untouched source file. Use it as the baseline when comparing what a lossless audio sounds before Sundy writes storage into it.
Download original WAVSundy writes AES-256 encrypted storage into the audio noise floor. The file still plays like the original, while Sundy unlocks the hidden vault with the right password (this example of storage you can open with different passwords 123, 456, 789).
Download WAV with encrypted storage
Without the exact password, there is no proof that additional information exists.
There is no special header, marker, index, or visible footprint in the WAV.
The hidden area is still encrypted with AES-256 and appears as random analogue
noise without any signatures or markers.
Choose the storage style that fits how you back up, sync, travel, or blend sensitive data into everyday files.
Best for maximum deniability and simple backups: one file of random bytes, redundant copies, and isolated vaults.
Best for sync workflows: encrypted pieces live as separate files, so cloud backup tools only upload what changed.
Best for blending in: store an encrypted vault inside a normal-playing WAV or AIFF file. It stays unheard in playback and looks like random noise under analysis.
Standard, openly documented cryptography plus privacy-first storage mechanics.
A privacy product should not require a privacy-invasive checkout.
Sundy uses a direct private purchase flow instead of a standard card checkout, avoiding routine account, card, and billing records.
Licenses are purchased through Telegram and issued per system. Sundy only needs the details required to create and verify your license; your vaults, audio files, passwords, notes, and 2FA secrets remain local to your Mac.
one-time purchase (free trial available)
Requires macOS 26+ on Apple Silicon. Fully compatible out of the box — no extra drivers and no need to downgrade macOS security.
"Your vault belongs to you alone.
No backdoors, no spare keys, no one else holding access."