
Flex AI is a free mobile app that allows users to build muscle or lose weight quickly. The app offers a library of over 1000 high-quality workouts designed for weight loss, muscle building, or strength gain.
Users can personalize their workouts, learn how to do exercises, and track their progress over time. The app combines the expertise of trainers and AI to tailor workouts to each individual's pace in order to achieve fast results.
Flex AI aims to make working out fun and engaging. It offers game-like features, fun challenges, and friendly reminders to help users form a habit of working out regularly.
The app is easy to use and equipped with features such as auto progression, a body weight tracker, and a plate calculator to assist users in their fitness journey.
Additionally, Flex AI allows users to fully create and customize their own exercises, workouts, routines, and schedules, which can be shared with friends.
Based on positive user reviews, the app is clear, organized, and detailed, with developers who appear to have genuine knowledge and passion for fitness.
Flex AI is available for download on iPhone and Apple Watch, and it has received a high rating on the App Store. Overall, Flex AI provides a comprehensive fitness solution for individuals looking to achieve their muscle-building or weight loss goals.
Releases

Pricing
Prompts & Results
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853,492638v1.6 released 21d agoFree + from $12/moReducing manual efforts in first-pass during code-review process helps speed up the "final check" before merging PRs
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12,797101v2.1 released 2mo agoFree + from $45/moThis is the first AI marketing tool I’ve used that actually helps me get things done, not just suggest generic ideas. The mix of AI-powered strategy and real experts executing the work makes it feel like having a high-performance marketing team without the overhead
Included in lists
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If you liked Flex AI
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4363Released 1y agoNo pricingNice chat! Would recommend! Gave me a personalized fitness program right away!
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5,20254v1.1.2 released 1mo agoFree + from $15/moSuper cool, seems a really end2end deliver with a single prompt. Userflow is impressived, clarify the idea of product. Modify is not good enough. UI seems fancy however the generated UI: backend is fair good, meanwhile front-end is not good enough
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