ScanLingo: Book Word Scanner

Scan books and turn words into page-linked vocabulary cards. Read, listen and review with spaced repetition. On-device OCR keeps learning private and offline.

App Review Information

1. Screen recording

Review video (public HTTPS URL, no login required): https://language-packs.scanlingo.cn/videos/app-review/app-review.mp4

The video was recorded on a physical iPhone running iOS 26.5.2. It starts by launching the app and demonstrates accepting the Privacy Policy and Terms of Service, creating a local learner profile, importing or taking a photo, on-device OCR, editing and saving a word, phrase, or sentence card, reviewing a saved card, speech input, follow-reading, opening the Plus subscription page, restoring purchases, and clearing local learning data.

The app has no social user-generated-content system, reporting flow, or blocking flow.

1. Devices and operating systems tested

• iPhone 15 - iOS 26.5.2

The listed device is a physical iPhone.

1. App functions and target audience

ScanLingo (读书学外语) is a local-first language-learning app for self-directed language learners. Users can scan or import study material, recognize text or objects on device, edit translations, save vocabulary and sentence cards, review them later, practice follow-reading, and view local learning reports.

The app turns real-world reading material into reviewable language-learning content without requiring an account or uploading learning content.

1. How to access the main features

No account or login is required.

Launch the app, accept the Privacy Policy and Terms of Service, and create a local learner profile. The main features are available from the Home and Language Space tabs.

Camera and photo-library access are requested only when the reviewer chooses a scanning or object-recognition feature. Microphone and Speech Recognition access are requested only when voice input or follow-reading is selected.

The app includes one monthly auto-renewable subscription: Product ID: com.scanlingo.app.plus.monthly.v1

The subscription page is available from Settings > Subscriptions. Purchase and restore can be tested with an App Store Sandbox account. No demo login account or sample file is required.

1. External services and technologies

• Apple Vision OCR and Core ML for on-device recognition
• Apple Speech and AVAudioSession for voice input and follow-reading
• AVSpeechSynthesizer for read-aloud
• Apple Natural Language and Apple Translation when supported
• Apple StoreKit for in-app purchases
• RevenueCat for subscription entitlement and purchase restoration
• Cloudflare R2 for signed language-resource downloads
• Cloudflare Pages for public legal documents
• Tally for the optional feedback form

The app has no user account backend, cloud learning-data sync, or developer server for uploading learning content. Learning data is stored locally on the device.

1. Regional differences

Core app functions are consistent across regions. UI and legal documents are localized. App Store prices are localized by Apple. Apple Speech, Translation, and other system services may vary by device, iOS version, language, or region; manual and local fallbacks are provided.

The current learning languages are English, Simplified Chinese, Japanese, French, Korean, and Brazilian Portuguese.

1. Regulated services and third-party material

The app does not provide regulated medical, financial, legal, or other professional services.

Bundled model, vocabulary, pronunciation, and open-source notices are listed in Settings > Third-Party Data Notices and in the app's third-party notices. License and source documentation can be provided upon request.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/