Comparison

otpNow vs KrypterApp

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

Head to head
About

otpNow

Features
Read full description

otpNow is the first One-Time-Password Generator that is: - absolutely Cloud Free - capable to show the generated Tokens on your Watch Imported Secrets are not exportable, so please take a Backup before.

About

KrypterApp

Encrypt any file or message with advanced, user-controlled cryptography. Your data is secured using your device's hardware and advanced algorithms, ensuring privacy without middlemen or servers. Share securely, knowing only your intended recipient can access your information.

Highlights
  • Encrypt any file type (photos, documents, videos)
  • Send encrypted text messages
  • Keys stored in Secure Enclave
  • Post-quantum encryption (XWing)
  • Password protection for double security
  • No account or network connection required
  • Authenticated encryption for sender verification
Read full description

Your private conversations deserve better than "end-to-end encrypted (trust us)." Krypter puts real encryption in your hands: no middlemen, no servers, no fine print. ENCRYPT ANYTHING Photos, documents, voice memos, videos: encrypt any file with HPKE (RFC 9180) and send it any way you like. Only the person you choose can open it. Not us. Not Apple. Not anyone else. ENCRYPTED MESSAGES Write a message, encrypt it, and paste it into iMessage, WhatsApp, email, Signal, whatever. It stays unreadable wherever it travels, except to your recipient. KEYS THAT NEVER LEAVE YOUR IPHONE Every Krypter key is created inside your iPhone's Secure Enclave, the same chip behind Face ID and Apple Pay. The private key can't be exported, copied or read, not even by Krypter. POST-QUANTUM KEY SHARING Invite a contact with a link or QR code. Your public key travels back sealed with ML-KEM, the NIST post-quantum standard, so even a future quantum computer recording today's traffic learns nothing. Everyone sees keys only as SHA-256 fingerprints you can compare in person. CIPHERTEXT THAT SAYS NOTHING Every encrypted message and file starts with a header that looks like random bytes and is padded inside the encryption. Nobody can tell which algorithm was used, whether a password was added, or how big the original really is. PROVE WHO SENT IT Authenticated HPKE lets your recipient verify a message really came from you, not someone pretending to be you. No certificates. No authorities. Pure cryptography. ADD A PASSWORD Stack a shared password on top of the encryption, stretched with 5 million PBKDF2 rounds. Even with the right key, nobody reads it without the password. NOTHING STORED IN THE CLEAR Contacts, key names, dates, settings and the PIN are all sealed on your device with ML-KEM-1024 under the Secure Enclave, and behind your app PIN when it's on. A copy of the phone's storage reveals nothing. TRULY PRIVATE • No account required, ever. Not only not required: there is no way to create one • No network connections: Krypter works fully offline • No data leaves your device unless you share it • No analytics, no tracking, no telemetry • App PIN with a panic PIN, tied to the Secure Enclave and Face ID • Decrypted text hidden from screenshots and screen recordings • Copied text expires from the clipboard after 30 seconds and never syncs to other devices • Privacy screen when you switch apps • No ads, no paywalls BACK UP YOUR CONTACTS Export your contacts in a password-encrypted backup (PBKDF2, 120 million iterations) and restore them anytime. Your keys stay in the Secure Enclave, as they should. STANDARDS-BASED Built on RFC 9180 HPKE, NIST P-256, AES-256-GCM, ML-KEM-768 and ML-KEM-1024, all from Apple's CryptoKit. No proprietary algorithms. No homemade crypto. Krypter is encryption the way it should be: yours.

Screenshots

otpNow3 screens
KrypterApp3 screens

Verdict

The call

The clearest difference is update cadence: KrypterApp at every 4 days against otpNow's every 13 months. otpNow's advantage is iOS requirement (18.2 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

otpNow ships an update every 13 months, KrypterApp every 4 days. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
otpNow versus KrypterApp: the parameters behind the verdict, then further details
ParameterotpNowKrypterApp
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 13 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, Apple WatchiPhone, iPad, Mac — better
Requires iOS18.2 — better26.0
Further details — not scored
Size3 MB11 MB
Age rating4+4+
DeveloperMATTHIAS ROBERT WIORAPavel Yeschenko

In-app purchases

None

otpNow

No in-app purchases

None

KrypterApp

No in-app purchases

Questions

Is otpNow free?
otpNow is free to download, with no in-app purchases.
Is KrypterApp free?
KrypterApp is free to download, with no in-app purchases.
Do otpNow or KrypterApp have ads?
Neither otpNow nor KrypterApp shows ads.
Which is updated more often, otpNow or KrypterApp?
otpNow ships an update every 13 months, and KrypterApp every 4 days. Most recently, otpNow was updated on September 29, 2026 and KrypterApp on October 9, 2026.

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