Cryptific vs Knock Messaging
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cryptific
Securely send and receive sensitive messages with end-to-end encryption. Establish a shared secret code with recipients to encrypt and decrypt messages, ensuring your private information remains protected from unauthorized access on your device.
- End-to-end message encryption
- Secure secret code system
- Optional message expiration
- Cross-platform message sharing
- Simple sender/receiver interface
Read full descriptionHide full description
Encrypt and decrypt messages with a simple, private workflow. Cryptific helps you protect message content by converting it into encrypted text that can only be unlocked with the correct key. — HOW IT WORKS • Type your message • Enter a secret key • Generate encrypted text instantly To read a message, paste the encrypted text and enter the same key to decrypt it. — KEY FEATURES • Encrypt and decrypt messages locally on your device • Optional message expiration for additional control • Biometric authentication for quick access • Fast, lightweight, and easy to use — PRIVACY Cryptific performs encryption directly on your device. Message content is not stored or processed on external servers by the app. — IMPORTANT Cryptific is a utility tool designed to add an extra layer of message privacy. It does not replace messaging platforms like iMessage or other chat apps. Both sender and receiver must use the same key to decrypt messages. — Great for: • Adding privacy to messages • Protecting sensitive information • Sharing encrypted text across platforms Simple. Fast. Private. Cryptific.
Knock Messaging
Read full descriptionHide full description
Knock Messaging lets you send messages and media through iMessage. Recipients can instantly view shared content using an App Clip or the full app. The App Clip provides a fast and lightweight way to preview messages without installing the full app. Knock Messaging is designed for simple, direct message sharing with a seamless experience across supported devices.
Screenshots
Verdict
The clearest difference is update cadence: Knock Messaging at every 5 days against Cryptific's every 35 months. Knock Messaging also leads on iOS requirement (15.0 vs 26.2). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cryptific ships an update every 35 months, Knock Messaging every 5 days. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.
| Parameter | Cryptific | Knock Messaging |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 35 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 26.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Cryptific LLC | Baseline Polls Limited Liability Company |
In-app purchases
Cryptific
No in-app purchases
Knock Messaging
No in-app purchases









