If you're looking for an alternative to AITalk, LangAI is a good alternative. It offers AI-based language learning in more than 20 languages, with features like real-time error correction, natural conversation and automatic transcription. LangAI's responses are geared to your level of proficiency, and it covers a range of everyday situations, so it's good for continuous practice.
Another good choice is PrettyPolly, which offers 36 languages and lets you customize AI characters to practice speaking. It offers personalized feedback, a fluency score for each conversation, and other features like pronunciation assessments and spaced repetition flashcards. The service is designed to help you improve your speaking skills in a friendly, non-intimidating environment.
TalkBerry is also worth a look, in particular if you want to improve your English. It offers more than 100 realistic scenarios for practice and offers immediate feedback to help you build confidence. The app is good for people who need a flexible, affordable way to improve their language skills for personal or professional use.