Chitok Chinese vs Rock Identifier

Chitok helps English-speaking learners build practical Mandarin skills through short, focused lessons. Learn daily Mandarin words and Chinese idioms with clear audio, pinyin, English meaning, guided reading, speaking practice, and writing practice. Save useful words and idioms to your vocabulary notebook, then review them with a daily self test. Chitok is built for learners who want Mandarin that feels useful outside the textbook: travel, food, first conversations, everyday phrases, and real spoken practice. Features: Daily Word and Chinese Idiom lessons Listen, Speak, Read, and Write practice modes Pronunciation audio with normal and slow playback Pinyin, English meaning, and usage guidance Stroke-based writing practice Saved vocabulary notebook Daily self test for saved vocabulary Free users can try Daily lessons for three days. Chitok Pro unlocks continued Daily Word and Idiom lessons, pronunciation audio replays, full writing practice, vocabulary saves, and Self Test. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Point your camera at a rock or mineral and Rocco tells you what it is — then helps you confirm it with the same tests geologists actually use. Identify from multiple angles - Guided capture: the whole specimen, a close-up of the surface, and a fresh break or cut face - Rock class or mineral group, chemical formula, and crystal system - Hardness on the Mohs scale, luster, streak color, and common colors - Formation, common locations, and typical uses - Estimated value range and hazard notes where relevant Confirm it yourself with guided field tests - A step-by-step Mohs hardness test using a fingernail, a copper coin, glass, and steel - A guided streak test to read a mineral's true powder color - Identification tips specific to what you found Build a real collecting record - Mark find sites on a map so you remember exactly where each specimen came from - Save specimens to your collection or a wishlist, with a full scan history - Ask Rocco's AI companion follow-up questions about any rock or mineral Identification is based on visual AI analysis and may be inaccurate, especially for specimens that look similar but differ in composition. Hardness and streak tests can mark or damage a specimen — test on an inconspicuous spot, and skip testing anything you'd rather keep pristine. Terms of Use (EULA): https://drive.google.com/file/d/1tKMiMuHcAe4zS6HUwAiIvkX0l8ruLYzz/view?usp=sharing Privacy Policy: https://drive.google.com/file/d/1tKMiMuHcAe4zS6HUwAiIvkX0l8ruLYzz/view?usp=sharing