Vaultaire vs Hide it Pro

機能比較

Vaultaire：17/17項目。Hide it Pro：5/17項目（1つは部分対応）。

料金比較

Obscurity vs. Security Principles

In information security, there is a well-established principle: security through obscurity is not security. Kerckhoffs's principle, formulated in 1883, states that a cryptographic system should be secure even if everything about the system is public knowledge, except the key. Hide it Pro violates this principle at its foundation. Its security model depends on the attacker not knowing what the app is. Once that knowledge is obtained -- and it is trivially obtainable -- the protection collapses entirely.

Vaultaire is built on Kerckhoffs's principle. The encryption algorithm (AES-256-GCM), the key derivation function (HKDF-SHA256), and the hardware security module (Secure Enclave) are all publicly known. The security depends solely on the secrecy of your pattern. You can publish the source code, explain the architecture in detail, and hand the device to a forensic lab. Without the pattern, the data remains encrypted.

Forensic Vulnerability

Hide it Pro stores files in its app sandbox without cryptographic transformation. A forensic extraction tool -- the kind used by law enforcement, corporate investigators, or even commercially available phone recovery software -- can read these files directly from a device backup. The app's disguise is irrelevant at the file system level. The files have standard image and video headers. They can be identified, catalogued, and viewed by any tool that understands common media formats.

Vaultaire files on disk have no recognizable headers. Each file is AES-256-GCM ciphertext with a random initialization vector. Forensic tools will find encrypted blobs that cannot be classified by file type, cannot be previewed, and cannot be decrypted without the key material held in the Secure Enclave. The forensic report will say "encrypted data, key not available."

The Ad Model Problem

Hide it Pro's free tier is ad-supported. This means the app integrates third-party advertising SDKs -- libraries of code written by companies like Google, Meta, or smaller ad networks. These SDKs collect device identifiers, usage patterns, and sometimes location data. They establish network connections to ad servers. They track user behavior across apps. All of this happens inside an application that is supposed to protect your privacy. The contradiction is structural, not incidental.

Vaultaire contains no advertising SDKs. The app makes no network connections by default. There are no device fingerprints transmitted, no usage analytics shared, and no behavioral data collected. The free tier is genuinely free -- funded by optional Pro upgrades, not by monetizing user data.

Multi-Purpose vs. Focused Tool

Hide it Pro attempts to hide photos, videos, notes, audio recordings, and more behind a single disguised interface. This breadth comes at the cost of depth. Each media type gets basic hiding functionality, but none gets the kind of rigorous cryptographic treatment that a dedicated vault requires. There are no independent vault containers, no per-vault key isolation, no duress mechanisms, and no encrypted sharing. The app hides many things poorly rather than protecting one thing well.

Vaultaire does one thing: encrypted file storage. Each vault is an independent cryptographic container with its own key material derived from its own pattern. Vaults can be shared, backed up, and destroyed individually. The duress vault provides plausible deniability. The architecture is designed for a single purpose, executed with the rigor that purpose demands.