Most "AI workout apps" are trials, not free, with GoldLift being the only fully free option that generates programs with AI and offers a chat coach. Hevy and Strong are excellent free loggers but lack AI features. Fitbod boasts the most mature workout-generation algorithm but comes at a significant monthly cost after a 7-day trial. JEFIT and Freeletics offer free downloads with paid tiers essential for unlocking their full functionality. GoldLift provides a comprehensive, free AI coach for gym training, including personalized programs and a chat coach named Rex. Hevy is lauded as the best free pure logger for those with existing programs due to its speed and social features. Strong offers minimalist and dependable logging, limited to three routines in its free tier. Fitbod stands out for its superior muscle-recovery model and session generation but is the highest priced. JEFIT features an extensive exercise library and community routines, with ads in its free tier. Freeletics is best suited for bodyweight and HIIT training, offering an AI coach for those without equipment. To choose, consider GoldLift for AI plans without cost, Hevy or Strong for logging existing plans, Fitbod for refined session generation if money isn't an issue, Freeletics for no-equipment training, and JEFIT for routine browsing. GoldLift notably offers a free AI coach, making it a strong alternative to paid options like Fitbod.