AIChatOCR vs Yemma 4

Perfect for These Private Scenarios * Organizing secret notes and diaries
Summarize and structure personal records. Nothing ever leaves your device. * Private consultations
Relationship advice, health notes, family matters—topics you hesitate to ask online AI. Fully offline and secure. * Personal document management
Read passports, bank statements, and handwritten notes, then ask questions. Keep sensitive data completely safe. Key Features * High-Accuracy OCR
Convert photos into text with your camera. Handwritten notes are recognized with high precision. * AI Chat Interaction
Summarize long texts, extract key points, and create bullet lists via chat. Even sensitive conversations stay entirely on-device. * Flexible Information Extraction
Keyword extraction, field extraction, Q&A, translation, and more. * User-Friendly UI
Chat-style interface with intuitive access to conversation history. * Export & Share
Export or share messages when needed. Get Started in 3 Easy Steps 1. Import documents
Scan and capture private notes instantly. 2. Automatic OCR text extraction
Fast, fully offline processing. 3. Chat with AI
Summaries, questions, and more—no external servers required. Try it for free now!
Your personal, private AI assistant awaits. Frequently Asked Questions * Supported documents
Contracts, academic papers, diaries, and more. Japanese and English supported. * Offline usage
Yes. All processing is done entirely on your device. * Data privacy
No external data transmission. Zero leakage, even for sensitive conversations. Privacy Policy AIChatOCR performs all processing entirely on your device.
No data is sent externally and no data is shared with third parties. Important Notes This app performs intensive data processing.
Extended use or heavy workloads may cause the device to heat up.
Due to high memory usage, the app may unexpectedly terminate (crash) depending on device performance. Support If you have any questions or requests, please contact us via “App Support” listed on the App Store. System Requirements * iOS 18.0 or later * iPhone 14 or later recommended

Yemma 4 is a private AI chat app that runs entirely on your iPhone. It runs Google's Gemma 4 locally through a Swift-native MLX multimodal runtime, so your prompts, images, and responses stay on your device. There is no account to create, no cloud inference service in the middle of your conversations, and no telemetry pipeline watching what you do. Download the model once, then keep chatting on Wi-Fi, cellular, or in airplane mode. Ask questions, brainstorm ideas, rewrite text, summarize notes, describe photos, and have real back-and-forth conversations with image attachments, all processed on-device. Why Yemma 4 feels different: - 100% on-device AI chat - No sign-up, login, or subscription - Offline after the initial model download - Local conversation history you can delete any time - Adjustable response style and creativity controls - Image understanding through the same on-device model Hardware note: - Requires iPhone hardware with the A17 Pro chip or later - First model download is about 4.2 GB, so Wi-Fi and free storage are recommended