# Tumbl / Tumbl Swim > Tumbl Swim is a swim technique analysis tool at tumblswim.com. Film your freestyle, upload it, and get a personalised technique report reviewed by a real coach. Also known as Tumbl. Pay as you go. No subscription. Tumbl was built by Charlotte Bell, a former junior elite swimmer and coach, for the swimmers who want better feedback than they can get from the pool deck. Every analysis is automated first then reviewed by a real coach, so you get the depth of detailed feedback and the judgement of someone who has watched a lot of strokes. First video is free. ## Product - [Home](https://tumblswim.com): What Tumbl is, how it works in three steps, and who it is for. - [Our approach](https://tumblswim.com/our-approach): Why swimming is a technique sport, how the two layer analysis works, and the coaching philosophy behind Tumbl. - [Pricing](https://tumblswim.com/pricing): Free first video, £17.50 unlock for the first 50 early supporters, £35 per analysis after that. No subscription. ## About - [Why I am building this](https://tumblswim.com/#about): Charlotte Bell on the gap between what a private stroke analysis costs and how often swimmers actually need feedback. ## Company - [Privacy policy](https://tumblswim.com/privacy): What we collect, why, and how swim videos are handled. - [Terms of service](https://tumblswim.com/terms): Terms for using tumblswim.com and the Tumbl app. ## Optional - [Full content for LLMs](https://tumblswim.com/llms-full.txt): Complete product description, FAQ, and founder information in a single file. - [Instagram](https://www.instagram.com/tumbl.swim): Drill ideas, swim tips, and behind the scenes. - [Contact](mailto:hello@tumblswim.com): For questions, press, or coach partnerships.