ZZZ Let's Read!

An OCR app that supports Japanese (both vertical and horizontal text) and English. Features include receipt scanning with CSV export and split bill calculation.

ZZZ Let's Read! — On-device OCR for Japanese (vertical, horizontal, classical, kuzushiji) and English

Point your camera at a book or a receipt, and get text in an instant. Every byte of OCR runs locally on your device — captured images and recognized text never leave your phone. Ideal for privacy-conscious users and offline environments.

◆ SUPPORTED OCR LANGUAGES AND SCRIPTS ◆

This App recognizes only the following: • Japanese — vertical (tategaki) and horizontal (yokogaki) writing, modern Japanese, classical/pre-modern kanji, and kuzushiji (cursive handwriting). 7,141 characters of the NDLmoji charset. • English — basic Latin alphabet (A–Z / a–z), digits, and common punctuation.

Other writing systems are NOT recognized: Simplified/Traditional Chinese, Korean (Hangul), Cyrillic, Arabic, etc. Accented Latin characters (é, ñ, ü, ç, ã, …) are also not in the OCR charset. The app interface is available in 6 languages, but the OCR engine itself supports only Japanese and English.

◆ FEATURES ◆

Document Mode — Books, Manuscripts, Classical Japanese • Powered by the National Diet Library's NDLOCR-Lite • 7,141-character NDLmoji charset including pre-modern Japanese kanji • "Detect" outlines all text regions — tap to OCR only what you need • "Read all" runs OCR on the entire page in one go • Copy or share recognized text • Pinch-to-zoom on the captured snapshot

Receipt Mode — Automated Bookkeeping • Auto-extract amount and date from any receipt • Multi-currency: JPY, USD, GBP, EUR, and more • Date formats: Gregorian, Reiwa/Heisei, abbreviated wareki, English month names (e.g. 16AUG2015) • Auto-detects DD/MM vs MM/DD by device locale • Handles European decimal comma (15,65 €) correctly • Bill splitter — divides the amount by N people • Share CSV via Mail / Drive / messenger, or clear with one tap

◆ SIX INTERFACE LANGUAGES ◆

Japanese, English, Chinese, Korean, Spanish, Portuguese. Unsupported locales fall back to English automatically.

◆ PRIVACY BY DESIGN ◆

• Fully offline OCR — no network required for recognition • Captured photos are discarded after OCR; nothing is sent to a server • Only the camera and one CSV file on internal storage are accessed • Network is used solely for ad delivery (Google AdMob)

◆ WHO IT'S FOR ◆

• Students and researchers studying classical Japanese • Writers and editors quoting from physical books • Freelancers, sole proprietors, and households tracking receipts • Travelers logging expenses across multiple countries • Anyone handling confidential documents or working offline

◆ REQUIREMENTS ◆

• iOS 13.0 or higher • ~200 MB free storage • Rear-facing camera • Internet not required for OCR (used only for ads)

◆ OPEN-SOURCE CREDITS ◆

The OCR engine in this App is built on these open-source assets, redistributed under their respective licenses. • National Diet Library NDLOCR-Lite — CC BY 4.0 • PARSeq scene-text recognition model — Apache License 2.0 • PaddlePaddle PP-OCRv4 detection model — Apache License 2.0 The native iOS port (Swift + ONNX Runtime) is the work of this App's developer.

◆ MONTHLY SUBSCRIPTION (REMOVE ADS) ◆

• The "Remove Ads" monthly plan hides all ads in the app • Payment is charged to your Apple ID account • The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period • Your account is charged for renewal within 24 hours prior to the end of the current period • You can manage or cancel anytime in iOS Settings > Apple ID > Subscriptions

◆ TERMS OF USE (EULA) ◆

This App is provided under the following End User License Agreement (EULA). Terms of Use: https://smolt-stage.com/home/privacy/zzz-ocr-terms.html

◆ PRIVACY POLICY ◆ This App handles information in accordance with its privacy policy. For details, see "About" inside the App or the link in this store listing.