Question: I need a language learning tool that provides personalized feedback and lets me schedule lessons at my convenience.

One top option is Praktika. Praktika offers a personalized, automated 1-1 tutorship experience with AI Avatar Tutors. It offers real-time conversations, immediate feedback, and progress tracking that adapts to your needs. With a large library of content and a non-judgmental atmosphere, Praktika is a more affordable alternative to traditional tutoring, offering flexible, self-paced learning at a lower cost.

Another option is Talkpal, a GPT-based language learning tool. It can help you improve speaking, listening, writing and pronunciation with interactive conversations and real-time feedback. With roleplays, debates and character interactions, Talkpal supports multiple languages, and offers free and premium tiers for different budgets.

If you prefer a more interactive approach, PrettyPolly offers personalized feedback and the ability to speak with AI characters. It supports 36 languages and offers personalized feedback, fluency scores and optional pronunciation evaluations. PrettyPolly also offers freemium membership options, so it's accessible and affordable for learners.

Last, AI Talk Tutor lets you pick a subject and AI teacher for flexible, personalized speaking lessons. It has start-and-pause abilities, patient AI responses and immediate feedback on answers. It works on any device and offers a free first lesson for new users, so it's a good option for learners who need to schedule lessons on the fly and get personalized feedback.