> ## Documentation Index > Fetch the complete documentation index at: https://docs.justtalk.ai/llms.txt > Use this file to discover all available pages before exploring further. # The AI practice app > chat.justtalk.ai — practice speaking any time with AI characters, scenarios, role-plays, and learning paths. The AI practice app at [chat.justtalk.ai](https://chat.justtalk.ai) (and on iOS) is where you keep talking **between** lessons. You speak naturally with AI characters, and everything you say feeds the same progress profile your teacher sees. ## Your home screen Vocabulary placement test The home screen pulls together: * **Personal Scenarios** — practice scenarios your teacher assigned to you (for example *Grammar Practice: Perfect Present Tense*, *HR Screening*). * **Pronunciation** — start a baseline assessment to find sounds to improve. * **Recommended for You** — words picked for your goals; tap one to add it to your Vocabulary Builder. * **Learning Paths** and **Continue Learning** — multi-step journeys and recent scenarios. ## Characters & Role-plays You can practice with different **personalities** — some warm and supportive, some challenging — to get comfortable with real conversations. And you choose the **situation**, from casual small talk to high-pressure moments. Real-time tracking of target words, grammar, and mistakes during a conversation ## Learning Paths Some topics are **multi-step journeys**. A path moves you through stages (for example, a dating series: *Initial Meeting → Calling to Schedule → Date → Post-Date Chat → Freetalk*), tracking which steps you've completed. Real-time tracking of target words, grammar, and mistakes during a conversation Next: [have a conversation and read your feedback](/knowledge-base/student-guide/ai-conversations).