Question: I need a language learning solution that's available 24/7 and affordable compared to human tutors.

If you're looking for a 24/7 language learning service that's not too expensive, Teacher AI is a good option. The service offers personalized conversation practice in 25 languages, including Arabic, Chinese and French. It tracks progress, explains grammar rules and offers adaptive learning that can be adjusted to suit your style. Pricing ranges from $12.25 per month to $25 per month, with a cancel-anytime policy.

Another option is Tutur, an AI-powered tutoring service. Tutur supports more than 10 languages, and it offers features like fluency tracking and real-time speech analysis. It's available 24/7, and you can track your progress through a dashboard. The service offers basic, pro and enterprise plans starting at €5 per month, with a 7-day free trial.

If you prefer a more free-form approach, LangAI could be a good option. It offers real-time corrections and feedback on conversational skills in more than 20 languages. The app offers automatic transcription, natural conversations and responses that are geared for your level of proficiency. You can use it for free with daily limits, or pay for a subscription for unlimited use.

Last, Langotalk offers an immersive environment with personalized AI tutors for 24/7 practice. It offers immediate feedback, community-created lessons and progress tracking. The service is designed to accommodate different learning styles and is good for those who want to improve their grammar and fluency as quickly as possible.