Key Crypt vs B
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Key Crypt
Create your own secret language to send private messages. This app allows you to encrypt your texts in real-time directly within your favorite messaging applications using a custom keyboard.
- Real-time text encryption
- Custom keyboard integration
- Works with all messengers
- Universal app for iPhone and iPad
- One-time purchase
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DOWNLOAD NOW! FREE FOR A LIMITED TIME! Ever dreamt of using your own secret language to text in private with a friend, co-worker or perhaps even your secret crush? Utilizing cutting-edge technologies and brand-new iOS8 features - that dream can now become a reality! Get the KeyCrypt app and start writing what you really think - without worrying about on-lookers and that nosy guy on the next desk! Add our patent-pending custom keyboard as your default input method and type directly into your favorite messenger! Features: No more worrying about people looking over your shoulder - encrypt your texts in realtime! Works with all of your favorite messengers! If you can type there - we can encrypt it! No hidden fees! Pay once - encrypt every letter you type! Universal app - works on both iPhone & iPad! Stay tuned for upcoming updates with even more cool features & content. We at Zariba would like to express our gratitude to all of our fans and supporters! If you like our app, please, rate it in the App Store! Thank you! Follow us on: Facebook: http://www.facebook.com/ZaribaLtd Twitter: http://www.twitter.com/ZaribaLtd YouTube: http://www.youtube.com/ZaribaLtd Visit our website: http://www.zariba.com
B
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B-Message is a privacy-first text encryption tool that locks your messages with industrial-grade AES-256-GCM encryption — right on your device. Your text never leaves your phone unencrypted, and not even we can read it. WHY B-MESSAGE? In a world where messages pass through countless servers, B-Message takes a different approach: everything happens locally on your device. There are no accounts, no servers processing your content, no logs, and no tracking. Your privacy isn't a feature — it's the foundation. HOW IT WORKS 1. Type or paste your message. 2. Set a password that only you and your recipient know. 3. B-Message encrypts your text instantly, on your device. 4. Share the encrypted result through any app you like — messaging, email, anywhere. 5. Your recipient decrypts it with the same password. The encrypted text is meaningless to anyone who intercepts it. Only someone with the password can unlock it. KEY FEATURES - AES-256-GCM encryption — the same standard trusted by security professionals worldwide - 100% on-device — your messages are encrypted and decrypted locally, never sent to any server - Zero data collection — no accounts, no analytics, no tracking, no logs - Works offline — encrypt and decrypt without an internet connection - Password-based — you control the key, we never see it - Simple and fast — clean, distraction-free interface - Share anywhere — use the encrypted output with any app you already use YOUR PRIVACY, GUARANTEED BY DESIGN B-Message is built on a zero-knowledge principle. Because encryption happens entirely on your device and nothing is transmitted to us, your private messages stay private — by design, not just by promise. PERFECT FOR - Sending sensitive information securely - Protecting private notes and messages - Anyone who values privacy and control over their data - Adding a layer of security on top of any messaging platform No sign-up. No data collection. No compromise. Developed by Beaver Byte.
Screenshots
Verdict
The clearest difference is iOS requirement: Key Crypt at 8.0 against B's 15.0. 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.
| Parameter | Key Crypt | B |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Zariba Ltd. | Beaver Byte |
In-app purchases
Key Crypt
No in-app purchases
B
No in-app purchases









