Comparison

cryptoscreen vs B

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

cryptoscreen

This app creates secure, self-destructing notes that are encrypted locally before being shared. Both a link and a PIN are required to access the message, which is then deleted after a single successful read. It offers enhanced privacy features like screenshot detection.

Highlights
  • Local encryption before upload
  • Link and PIN required for access
  • One-time read deletion
  • Screenshot detection
  • Message destruction after failed PIN attempts
  • Link expiration
  • Encrypted image attachments (Pro)
Features
Read full description

cryptoscreen is a private note app for messages that should not last. Write a note, choose a six-digit PIN, and cryptoscreen encrypts the message on your iPhone before it leaves the device. Share the generated link and send the PIN separately. The recipient can read it once in the iOS app, with an App Clip, or in a web browser when you allow web reading. No app download is needed for browser reading. CHOOSE HOW YOUR MESSAGE CAN BE READ Allow app and web reading for easier sharing, or choose app-only reading. Both the link and the PIN are required. Web-enabled messages are decrypted in the recipient's browser and become unavailable for another read after they are opened. ONE-TIME MESSAGES - Encrypt notes locally before upload. - Open normal messages once, then make them unavailable to other readers. - Destroy a message after the third wrong PIN attempt. - Let unopened links expire after the retention window. - Check availability in Sent Messages, including messages opened on the web. GUARDED READING ON iOS The iOS app and App Clip use a guarded reader to reduce casual screen exposure. The reader clears when iOS reports a screenshot. Screenshot protection is best-effort: iOS reports normal screenshots after capture. Browsers cannot provide the app's screenshot detection or capture protection, and no app can protect against external cameras or compromised devices. TEXT IS FREE. IMAGE SENDING IS PRO. Send text-only messages and read received text and images for free. Pro lets senders attach encrypted images. Restore purchases and manage your subscription from Settings. cryptoscreen does not require accounts, profiles, or contact lists. Messages are encrypted before upload; the service stores encrypted content and the metadata needed for expiry, PIN attempts, and message availability. Optional interaction-status sharing is off by default. Support: https://cryptoscreen.app/support Privacy Policy: https://cryptoscreen.app/privacy

About

B

Features
Read full description

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

cryptoscreen4 screens
B4 screens

Verdict

The call

The clearest difference is in-app purchases: B at none against cryptoscreen's 1. B also leads on iOS requirement (15.0 vs 17.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. cryptoscreen sells 1 in-app purchase, starting at $2.99 per month. B asks for nothing beyond the download.

Scorecard2 real differences · 8 level
cryptoscreen versus B: the parameters behind the verdict, then further details
ParametercryptoscreenB
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size7 MB3 MB
Age rating4+4+
DeveloperDomenico Marco Di DonnaBeaver Byte

In-app purchases

1 purchases

cryptoscreen

Subscriptions1
  • cryptoscreen Pro Images$2.991 Month
None

B

No in-app purchases

Questions

Is cryptoscreen free?
cryptoscreen is free to download, with in-app purchases available.
Is B free?
B is free to download, with no in-app purchases.
Do cryptoscreen or B have ads?
Neither cryptoscreen nor B shows ads.

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