Abjad日本語 vs SATTS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Abjad日本語
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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.
SATTS
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SATTS Keyboard lets you type Arabic using the Standard Arabic Technical Transliteration System on a familiar QWERTY layout. Type Roman letters, and the keyboard converts them into Arabic as you go. SATTS Keyboard is designed for people who already use SATTS, as well as learners who want a practical way to type with it on iPhone and iPad. Features: Type SATTS on a standard QWERTY keyboard Instant Arabic output while typing Support for core SATTS letter mappings Support for common combinations such as WE and IE Simple setup inside iOS keyboard settings Lightweight design focused on speed and clarity SATTS Keyboard also includes a small number of practical convenience features for mobile typing, while keeping the core SATTS behavior easy to understand. Support and documentation: SATTS guide: https://satts.nachman.us/guide.html Support: https://satts.nachman.us/support.html Privacy Policy: https://satts.nachman.us/privacy.html
Screenshots
Verdict
The clearest difference is iOS requirement: SATTS at 16.0 against Abjad日本語's 18.1. 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 | Abjad日本語 | SATTS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.1 | 16.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | SHAOXIONG MENG | Jeremy Nachman |
In-app purchases
Abjad日本語
No in-app purchases
SATTS
No in-app purchases









