Plain AI vs AOTAI Copilot

Plain AI is a simple, straightforward AI chat app that runs entirely on your device. All conversations are private and processed locally without any internet connection. Key Features • Multiple AI Models: Choose from Llama 3.2 (1B and 3B), Qwen 3.1 1.7B, Gemma 2 2B, or Apple Foundation Models • Complete Privacy: All processing happens on your device - no data is sent to servers • Customizable Parameters: Adjust temperature and top-p settings to control response creativity and diversity • Offline First: Works without internet after initial model download • Clean Interface: Simple, distraction-free chat experience Supported Models • Apple Foundation Models (iOS 26+, no download required) • Llama 3.2 1B (fast and efficient for basic tasks) • Llama 3.2 3B (balanced speed and quality) • Qwen 3.1 1.7B (multilingual support) • Gemma 2 2B (safe and reliable responses) Privacy Your conversations never leave your device. No accounts, no tracking, no data collection. Everything stays private and local. Free Forever Plain AI is completely free with no ads, subscriptions, or in-app purchases. Download a model and start chatting. Requirements • Storage space for downloaded models (approximately 700MB to 2GB per model) • Apple Foundation Models require iOS 26 or later and compatible devices AI responses may occasionally be inaccurate. Please verify important information.

AOTAI Copilot is an intelligent assistant developed for the welding industry. Focusing on welding knowledge, process applications, equipment selection, troubleshooting and maintenance, and industry case studies, it provides users with professional and convenient conversational services. With AOTAI Copilot, users can ask questions at any time about welding fundamentals, safe operating practices, differences between common welding methods, and factors affecting welding quality. Based on material type, plate thickness, welding position, weld appearance requirements, and productivity needs, users can also receive recommendations on process selection and parameter adjustment. AOTAI Copilot supports inquiries related to AOTAI welding machines, including equipment model information, operating instructions, compatible accessories, fault code explanations, alarm cause analysis, and troubleshooting guidance. This helps users identify problems more quickly and obtain practical reference solutions. The app also integrates image, document, and video retrieval capabilities. Based on users’ questions, it can find relevant product images, application cases, operating instructions, and demonstration videos, making information easier to understand. For complex questions, users can enable Deep Thinking Mode to receive more systematic and comprehensive analysis.