Comparison

OneCryption vs Abjad日本語

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

Head to head
About

OneCryption

This app offers true offline encryption for messages, photos, videos, and files. It emphasizes absolute secrecy through direct key exchange and no server reliance, ensuring quantum-proof security.

Highlights
  • Offline encryption for messages and files
  • Direct key exchange
  • No server reliance
  • Quantum-proof security
  • File and media encryption
  • Simple encryption/decryption
Features
Read full description

Private files and messages, encrypted on your iPhone. OneCryption is an offline encryption tool for people who prefer to exchange secret keys in person. It does not operate a message-delivery network: you choose how to send the encrypted result. HOW IT WORKS 1. Meet your contact and confirm their identity. 2. Generate shared secret key material and transfer it directly between nearby devices. 3. Write a message or select content, encrypt it locally, and share the encrypted result through a channel you choose. 4. The recipient decrypts it with the matching shared key. YOUR KEYS, YOUR CONTROL - Encrypt and decrypt text, photos, videos, audio and files. - Manage contacts and shared keys on your device. - See how much key material remains and exchange a fresh key when needed. - Use local encryption without a OneCryption messaging account. OneCryption uses a one-time-pad workflow. Key material must remain secret and must never be reused. Protect the devices and the key exchange. The channel you use to deliver encrypted content has its own privacy and metadata implications; encryption does not make a compromised device safe. FREE AND PREMIUM Text encryption is available for free. Some media and file features require Premium. Purchase options and current prices are shown in the app. If you choose a subscription, it renews automatically unless you cancel it in your App Store account settings. Privacy policy: https://www.onecryption.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Abjad日本語

Features
Read full description

A revolutionary innovation of Japanese script and input method. Features Minimal alphabet — Fewer symbols, faster learning, less visual clutter. Smart transliteration — Type consonants first; the app intelligently maps them to correct kana combinations. Designed for mobile — Larger hit targets and concise layouts improve typing accuracy. Works with katakana & loanwords — Designed with foreign-sound transliteration in mind. Fully private — All processing happens on your device. Nothing is sent to servers. Beginner-friendly — Great for learners familiar with alphabet-based scripts but new to Japanese. Who is it for? Japanese learners who prefer alphabetic writing systems Users familiar with Arabic, Farsi, or Hebrew scripts Anyone wanting a cleaner, more efficient Japanese typing experience Creators and translators working with katakana loanwords A new way to type Japanese Solomon reduces complexity, speeds up typing, and offers a modern alternative to traditional IMEs. Whether you're messaging, taking notes, or studying Japanese, this input method brings clarity and simplicity to your keyboard.

Screenshots

OneCryption4 screens
Abjad日本語4 screens

Verdict

The call

The clearest difference is in-app purchases: Abjad日本語 at none against OneCryption's 5. Abjad日本語 also leads on update cadence (every 6 days vs every 4 months). On price, ads, device support and iOS requirement 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. OneCryption sells 5 in-app purchases, starting at $49.99 per month. Abjad日本語 asks for nothing beyond the download.

UpkeepUpdate frequency

OneCryption ships an update every 4 months, Abjad日本語 every 6 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
OneCryption versus Abjad日本語: the parameters behind the verdict, then further details
ParameterOneCryptionAbjad日本語
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.6 — better18.1
Further details — not scored
Size11 MB13 MB
Age rating4+4+
DeveloperChristian HellSHAOXIONG MENG

In-app purchases

5 purchases

OneCryption

Subscriptions2
  • Premium features monthly7 Days trial$49.991 Month
  • Premium features yearly7 Days trial$500.001 Year
One-time3
  • Key of size 100MB$0.99
  • Key of size 500MB$0.99
  • Premium Lifetime$399.99
None

Abjad日本語

No in-app purchases

Questions

Is OneCryption free?
OneCryption is free to download, with in-app purchases available.
Is Abjad日本語 free?
Abjad日本語 is free to download, with no in-app purchases.
Do OneCryption or Abjad日本語 have ads?
Neither OneCryption nor Abjad日本語 shows ads.
Which is updated more often, OneCryption or Abjad日本語?
OneCryption ships an update every 4 months, and Abjad日本語 every 6 days. Most recently, OneCryption was updated on October 14, 2026 and Abjad日本語 on October 7, 2026.

Other comparisons