Bobbi
Period informed womens fitness app
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Bobbi - Period informed womens fitness app

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The fitness app that finally gets the female body. Built by women who were tired of ones that didn't. Bobbi was born out of a frustration most of us know too well, scrolling through fitness apps built for someone else, following workout plans that never quite fit, and wondering why nothing seemed designed with us in mind. Two women decided to build it themselves. From scratch. No shortcuts. No compromise.

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Maker
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We're Saffron and Dhru, the founders of Bobbi, a cycle-informed fitness app built for UK women aged 18–30. So excited (and a little nervous!) to share this with you all! πŸ’œ Why we built this: The idea for Bobbi started at a University of Sheffield innovation workshop, but the real spark came from something much more personal: training. I enjoy going to the gym, do reformer Pilates, and cycle regularly, and over years of tracking my own performance, the pattern was undeniable. My strength, energy, and recovery weren't flat across the month. They moved in a rhythm. But every fitness app I used treated every day the same, as if my body ran on a single fixed setting. That gap is the whole reason Bobbi exists. Mainstream fitness apps are still largely built around male physiology by default, and women are left to either ignore their cycle entirely or do the manual work of adapting plans themselves. We wanted to build the app that adapts with you, not despite your cycle, but informed by it. πŸ’œ The problem we set out to solve: Generic training plans don't account for the fact that strength, energy, and recovery capacity genuinely fluctuate across the menstrual cycle. Most women either push through with a plan that isn't built for them, or quietly disengage from fitness apps altogether because the advice never quite fits. We wanted training guidance that actually reflects what's going on in your body that week. πŸ’œ How our approach evolved We started lean: a small Sheffield-based waitlist, a free iOS launch, and a lot of direct conversation with early users about what was actually useful versus what just sounded nice in a pitch deck. That feedback reshaped a lot of our thinking, especially on content and community, where we realised women wanted to see the build as much as the workouts themselves, which is now a core part of how we show up online. We're still early, still learning, and still very much building in public. Would love for you to try Bobbi, and we're genuinely here for all the feedback β€” good, bad, and everything in between. πŸ’— β€” Saffron & Dhru

Love that two women actually built this from the ground up instead of just rebranding a generic app. The fact that it came from real frustration with existing options shows in how thoughtful it feels.

Maker

Β Thank you! we have put so much effort into really understanding the problem from lots of angles and bringing that learning together into the product! πŸ’œ

Finally, an app that doesn't just slap a pink theme on a generic workout plan and call it a day. The fact that two women built this from scratch with actual consideration for how female bodies respond to training makes all the difference.

Maker

Β Thank you! we have put so much effort into really understanding the problem from lots of angles and bringing that learning together into the product! There is so much more we want to do! πŸ’œ

Finally tried Bobbi and the cycle-aware workout suggestions actually adapt to where I am in my cycle instead of just ignoring it. Wish more apps thought about this.

Maker

Β Awwww this is amazing!! Thank you so much! Do let me know if there is anything you think we can improve upon! We are just getting started and have so many plans! πŸ’œ

How does Bobbi handle cycle tracking and adjust workouts around different phases of the month?

Maker

Β Hi! thanks for the question! We have an incredible advisory board (Drs, Professors and Psychologists) that helps us use the latest peer-reviewed science alongside users reported symptoms (eg. flow) to inform which phase you are in, which then also informs the workouts and intensity. Typically this might mean lighter workouts in your luteal phase, and more intense workouts in your follicular phase. We also always offer 4 types of workouts so you can pick which feels right for you (eg. weights training, a cardio workout and something else) πŸ’œ

How does Bobbi handle different fitness levels, like is there a way to start gentle if you're coming back from a break or just starting out?

Maker

Β Hi! Thanks for a great question. We are starting out with beginner friendly workouts as standard, before building out a variety of workout plans. We also have a user on-boarding process where users can let us know at what stage of their fitness journey they are in (eventually this will allow us to suggest workout plans for them to try based on their goals - but we are not quite at that stage yet) πŸ’œ

How does Bobbi handle different cycle phases when recommending workouts and intensity, and does it adjust nutrition guidance the same way?

Maker

Β Hi! thanks for the question! We have an incredible advisory board (Drs, Professors and Psychologists) that helps us use the latest peer-reviewed science alongside users reported symptoms (eg. flow) to inform which phase you are in, which then also informs the workouts and intensity. Typically this might been lighter workouts in your luteal phase, and more intense workouts in your follicular phase. We also always offer 4 types of workouts so you can pick which feels right for you (eg. weights training, a cardio workout and something else). We have done this in a way so the user can adjust intensity if they choose also. We hope to include nutrition very soon! If you know a nutritionist that might be interested in helping us let me know!! πŸ’œ

How does Bobbi handle cycle phases and fluctuating energy levels throughout the month, does it adjust workouts automatically or is that something I have to toggle myself?

Maker

Β Thanks for the question! It is automatic (based on phase and symptoms), but there is always the option to over-ride if something doesn't feel right πŸ’œ