# Secret Delivery

> Private Text and File Sharing

Canonical page: [https://chrome-stats.com/d/id459678901](https://chrome-stats.com/d/id459678901)

## Overview

- **ID:** `id459678901`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Tractus
- **Category:** Utilities
- **Rating:** 3.70 / 5 (3 ratings)
- **Version:** 4.0.2
- **Last updated:** 2026-06-15
- **First published:** 2011-09-02
- **Size:** 2.81 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/secret-delivery/id459678901)
- **Website:** [https://tractusonline.com](https://tractusonline.com/)
- **Privacy policy:** [https://tractusonline.com/privacy-policy/](https://tractusonline.com/privacy-policy/)

## Description

Secret Delivery encrypts your files and text so only the people you choose can read them. No accounts. No servers. No tracking. Your password never leaves your device — and neither does your data.

FREE TO START
• Encrypt and decrypt text messages — free, forever.
• Share encrypted text as a secretdelivery:// link, or copy and paste the ciphertext anywhere.

PRO UNLOCK (one-time purchase)
• Encrypt and decrypt files of any type.
• Quick Look previews of .sdenc files right inside Files and Finder.
• Import from Camera and Photos, and save to iCloud Drive.
• Face ID / Touch ID lock and configurable autolock.
• Run encrypt and decrypt from Shortcuts, Siri, and Spotlight — or with a long-press in Files.

STRONGER ENCRYPTION
• New files use AES-256-GCM with PBKDF2-HMAC-SHA256 key strengthening (600,000 iterations), a random salt and nonce per file, and an authentication tag that detects tampering.
• Your existing encrypted files still open — Secret Delivery detects the format automatically. Need to send a file to someone on an older version? Turn on Legacy Mode for the session, or upgrade old files in place.

PRIVATE BY DESIGN
• Everything happens on-device. We collect nothing, and there is no analytics SDK.
• The app blurs its contents in the app switcher and wipes temporary decrypted files when it moves to the background.

EXISTING CUSTOMERS
Already bought Secret Delivery? Thank you — everything stays unlocked at no extra cost. Just open the app on your Apple ID and Pro is restored automatically.

## Rankings

- #602,804 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id459678901)