Secret Delivery vs PixelMask
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Secret Delivery
Securely send private messages, photos, and documents with password-protected encryption. Share files through various platforms, ensuring your sensitive information remains confidential. Recipients need the app to decrypt and access content.
- Encrypted text and file sharing
- Password protection for messages and files
- AES encryption standard
- Encrypt/decrypt files outside the app
- Intuitive user interface
- Unlimited messages and file attachments
Read full descriptionHide full 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.
PixelMask
This app allows you to hide secret messages or confidential data within images using advanced steganography. It offers multiple methods to ensure your data remains invisible and secure, even under analysis. Protect your privacy and transmit information discreetly.
- Invisible data embedding
- Multiple steganography methods
- Simple encoding and decoding
- Secure data transmission
- Preserves image quality
Read full descriptionHide full description
PixelMask is a reliable tool for safeguarding your personal information using advanced steganography techniques. With an intuitive interface and powerful technology, PixelMask allows you to embed secret messages or confidential data into any image. Key Features: - Invisible Data Embedding: Protect your privacy by embedding data into images using the least significant bit (LSB) method. The changes remain invisible to the naked eye. - Multiple Steganography Methods: Utilize various embedding strategies such as Sequential Color Cycling (SCC) and uniform distribution to keep your data hidden, even under statistical analysis. - Simplicity and Security: Easily encode and decode information with just a few taps. Your data remains secure, invisible, and accessible only to those with the decryption key. - Wide Range of Applications: Perfect for securely transmitting personal messages, protecting intellectual property, or storing confidential data. - High Quality: PixelMask preserves the integrity of your images, ensuring protection without loss of visual quality. --- PixelMask | Premium By purchasing a subscription, you gain access to all paid features of PixelMask. The subscription automatically renews, and payment is charged monthly or annually, with the price depending on the selected plan. The subscription automatically renews until it is canceled, at least 24 hours before the end of the current period. Payment for renewal will be charged to your account within 24 hours prior to the end of the current period. You can manage and cancel subscriptions and turn off auto-renewal by going to your App Store account settings after purchase. Any unused portion of a free trial period will be forfeited when the user purchases a subscription to the product. - Terms of Service: https://SosinVitalii.com/terms-conditions - Privacy Policy: https://SosinVitalii.com/privacy-policy
Screenshots
Verdict
The clearest difference is price: PixelMask at Free against Secret Delivery's $0.99. PixelMask also leads on rating (5.0 vs 4.0) and review sentiment (100% vs 71%). Secret Delivery's advantage is ratings volume (4 vs 1) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
PixelMask is free to download; Secret Delivery costs $0.99 up front. Secret Delivery sells 1 one-off in-app purchase and PixelMask sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
PixelMask holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 71% of Secret Delivery's written reviews are positive against 100% of PixelMask's.
Secret Delivery ships an update every 8 months, PixelMask every 2 months. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.
| Parameter | Secret Delivery | PixelMask |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 71.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid — better | Subscription |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Tractus | Vitalii Sosin |
Customer experience
Secret Delivery
PixelMask
In-app purchases
Secret Delivery
- Secret Delivery Pro$0.99
PixelMask
- Monthly Premium Access$1.991 Month
- Yearly Premium Access7 Days trial$9.991 Year
- Purchase Premium Access$9.99
- Purchase Premium Access$49.99







