Launched this week
Swimio
AI swim coach with Apple Watch tracking & smart workouts
159 followers
AI swim coach with Apple Watch tracking & smart workouts
159 followers
Swimio combines AI coaching, advanced Apple Watch swim tracking, and personalized workout generation in one platform built specifically for swimmers. Create workouts tailored to your goals, follow them directly from your Apple Watch, track pace, SWOLF, stroke efficiency and heart rate, and get actionable performance insights after every session. Built for swimmers, coaches and teams who want more than a simple lap counter.
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Launch Team / Built With
Swimio
The Digital Crown navigation without killing Water Lock is the detail that tells me you actually swim! Every watch swim app I've tried makes you fight the wet-screen lock mid-set and it wrecks the session:) Well done! And one question. On the AI side: a pool only hands you splits and times, so how does the model know I blew up on a set versus cruised it?
Swimio
@artstavenka1 Thanks, Art. I really appreciate that observation. As a swimmer myself, the Water Lock experience was one of the biggest frustrations I wanted to solve. During a hard set, the last thing you want is to fight the watch UI instead of focusing on swimming.
Regarding the AI side, you're absolutely right that pools only provide a limited set of signals. Today, Swimio combines splits, pace consistency, rest patterns, workout completion, historical performances, Apple Health data, and swimmer feedback to estimate effort and adaptation over time. It's not perfect, but the goal is to build a much richer picture than raw lap times alone.
And I completely agree with your point about the handoff between plan generation, in-workout guidance, and post-session analysis. That's exactly the area I'm focusing on, because that's where a swim app can evolve from being just a tracker into something that actually helps swimmers improve.
Thanks again for the thoughtful feedback!
Hi! Looks interesting!
Could you explain more about how AI adapts or creates a workout? Based on what parameters? and using any specific model?
Swimio
@iosune_goni_lecea Great question!
Today, Swimio generates workouts by combining multiple data sources rather than relying on a single fixed template.
The AI considers:
Swimmer profile information collected during onboarding (experience level, goals, training frequency, strengths, weaknesses, etc.)
Historical swimming performance and completed workouts
Apple Health and Apple Watch metrics when available
Progress over time and previous training adaptations
On top of that, swimmers can explicitly customize the workout generation process by selecting parameters such as preferred stroke(s), available equipment (pull buoy, paddles, fins, kickboard, etc.), workout length, training focus, and other constraints.
The goal is to create sessions that are personalized to the athlete instead of producing generic swim plans. Regarding the model itself, the current version uses AI-driven workout generation combined with swimming-specific training logic, tailored algorithms and constraints.
For future releases, we're actively working toward fine-tuning a dedicated model on swimming training data and athlete performance patterns to provide even more personalized and adaptive coaching recommendations.
I'd love to hear what parameters you think would be most valuable for workout personalization!
@luca_corsilli Thanks a lot for the info! Parameters that would be most valuable for me: goal of the exercise, combined with age / weight and effort metrics registered on the health app. Also (not sure if this possible) would suggest breathing techniques and improvements. Also, to have it on different devices (Fitbit) would be valuable for me.
Swimio
@iosune_goni_lecea most of what you mentioned is already covered or aligns closely with the direction Swimio is taking. Goals, training history, Apple Health metrics, and performance data are all part of the personalization process, and I agree that age, weight, and effort-related metrics can play an important role as we continue improving it.
The one area that's not fully covered yet is technique guidance. That's something I'm very interested in, but I want to do it properly. I'm currently exploring partnerships with experienced swimming coaches and technique experts to ensure any advice and guidance provided is genuinely valuable and evidence-based.
Regarding devices, Garmin support is high on the roadmap. Fitbit is definitely something I'd like to support as well, although it will likely come later. I'm also actively working on both an Android version and a Web version of Swimio to make the platform accessible to more swimmers.
Really appreciate you taking the time to share these ideas!
@luca_corsilli Happy to help! I will keep an eye on this, thanks a lot for your quick response!
ChatWebby AI
The Digital Crown to move between metrics without unlocking Water Lock is such a smart detail — anyone who's actually tried to tap a wet touchscreen mid-set knows how much that matters. Tracking SWOLF and stroke efficiency rather than just laps shows this was built by a swimmer. Out of curiosity, does the Apple Watch workout support set-based structures (e.g. 8x100 with rest intervals), or is it continuous-distance focused?
Swimio
@zain_sheikh thanks for the kind words! As a swimmer myself, that Digital Crown interaction was one of the first things I wanted to fix.
And yes, Swimio absolutely supports structured workouts. You can follow complete training sessions with sets like 8×100, rest intervals, drills, kick sets, pull sets, warm-ups, cooldowns, and much more directly from your Apple Watch.
The goal isn't just to track what you've done, but to guide you through a real swim workout while you're in the water. If you get a chance to try it, I'd love to hear your feedback!
Congratulations on the launch! 🚀
I like that Swimio focuses on actually helping swimmers improve rather than just tracking laps and distance.
I'm curious: have you considered using trends in pace consistency, heart rate, and recovery between sets to automatically adjust future workouts? That seems like it could make the coaching experience even more personalized over time.
The Apple Watch experience looks especially well thought out.
Swimio
@prashant_patil14 Thanks so much for the thoughtful feedback!
You're describing exactly the direction Swimio is heading. The platform already uses swimmer profile data, training preferences, performance history, and health metrics to personalize workouts, but the next step is making that adaptation even more dynamic over time, as well as improving the AI core of the platform.
I'm actively working on using trends such as pace consistency, heart rate behavior, workout execution, recovery patterns between sets, and long-term performance progression to continuously refine future training recommendations. The goal is for Swimio to learn from every swim and become more personalized as it gathers more data about the athlete.
I'm also exploring fine-tuned models trained specifically on swimming-related data to provide even more relevant coaching insights and workout generation.
Really appreciate you noticing the Apple Watch experience as well. A lot of effort went into making it feel natural in the water, where usability matters just as much as the coaching itself.
Thanks again for the great feedback and for checking out Swimio!
Swimming is the most underserved sport in fitness tech - every running app has AI coaching now but swimmers get basic lap counting. The Water Lock detail stands out: the mid-set scramble to unlock your watch kills the flow, and the Digital Crown navigation fix shows you actually swim. Curious whether the AI workout generation adapts to pool length - 25m vs 50m changes pace targets and rest intervals meaningfully. Nice work filling a real gap here.
Swimio
@galdayan Thanks so much for the thoughtful feedback! It means a lot, especially coming from someone who clearly understands the nuances of swim training.
And yes, it absolutely does. Swimio adapts workouts to the selected pool length (25m, 50m, and even yards), adjusting distances, repetitions, pace targets, and rest intervals accordingly. The goal is to generate sessions that make sense in the environment you’re actually training in, rather than simply converting distances.
I’m also continuously improving the AI so it takes into account not only pool configuration, but also swimmer profile, performance history, health metrics, and training progression to make each workout more personalized over time.
Really appreciate your comments about the Water Lock workflow too, that came directly from years of frustration in the pool. I wanted the Apple Watch to stay out of the swimmer’s way, not become another thing to fight with during a set.
Thanks again for the great feedback!
Congrats on the launch! Swimio looks really polished. I like that it goes beyond basic lap counting and brings workout planning.
Curious if Garmin support is on the roadmap as well?
Swimio
@kuzmovych @kuzmovych Thanks so much for the feedback, I really appreciate it!
Garmin support is definitely on the roadmap and is actually one of the most requested features so far.
A basic Garmin Connect integration is already available today, allowing Garmin activities to be synced into Swimio. The main challenge is that Garmin Connect and Apple Health expose different sets of data, so some of the advanced metrics and insights available through Apple Watch aren't fully accessible yet from Garmin's ecosystem.
I'm also working with Garmin toward a deeper integration. At the moment they're going through some changes on their developer platform, so part of the timeline depends on updates from their side. Once that's settled, I'll be able to move much faster.
My goal isn't just to support Garmin devices, but to bring the full Swimio coaching experience to Garmin swimmers as well. Thanks again for the kind words and for asking about it!