DuoSwim: Swim Workout App

Name: DuoSwim: Swim Workout App
Rating: 4.5 (67 reviews)
Author: Spinning Falcon Ltd

Swim Training & Tracking

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

67 Ratings
Age Rating

9+
Years
Category

Health & Fitness
Developer

Spinning Falcon Ltd
Language

EN
English
Size

99.4
MB

DuoSwim is a powerful swim workout app and swim tracker designed to help you swim faster, build endurance, and improve your technique. Track every swim, follow structured workouts, and analyze your performance with real-time data — whether you're training for fitness, competition, or triathlon. Start your 7-day free trial. WHY DUOSWIM • Swim Workouts & Training Plans Structured swim workouts designed to build endurance, speed, and strength. • Swim Tracker & Lap Counter Automatically track laps, distance, pace, splits, and stroke metrics. • Advanced Swim Analytics Get insights into performance, efficiency, and progress over time. • Technique & Drill Library Improve your stroke with guided drills and coaching cues. • Triathlon & Endurance Training Prepare for races with structured swim training. • Swim + Dryland Fitness Build total-body strength with swim-specific workouts. FEATURE HIGHLIGHTS • Swim tracker & lap counter • Swim workouts for all levels • Apple Watch, Garmin & Strava sync • Detailed swim stats & splits • Technique drills & videos • New workouts added regularly FREE VS PRO Free Version: • Limited workouts • Preview training plans DuoSwim Pro: • Full training plans • Advanced tracking & analytics • Full device integration • Exclusive workouts & challenges SUBSCRIPTIONS & TERMS DuoSwim offers monthly, 3-month, and annual plans. Subscriptions auto-renew unless cancelled via your App Store settings. Terms & Conditions: duoswim.com/terms-conditions Apple EULA: apple.com/legal/internet-services/itunes/dev/stdeula JOIN DUOSWIM Join swimmers worldwide training with structure, clarity, and purpose. Follow @duoswim and take your swimming to the next level. Track every lap. Train smarter. Swim stronger.

Ratings & Reviews

4.5

out of 5

67 Ratings

Great - a few areas could be improved
02/24/2023
Swimming in NJ
Overall great app. I signed up for a free trial and after using 3 times bought a year’s subscription. Three areas I’d like to see improvements. One, the ability to see on my watch what is coming up next. I don’t see the next set until the final 10 seconds begin to count down and, if I need to put on or take off fins for example, I fall behind. Second, if I do fall behind it would be great to be able to pause or restart the set. As it is, I just usually skip one interval to get back on track. And lastly, sending the workouts to my watch (Apple SE) is glitchy at times and I need to reset the watch and/or my phone (has happened twice in the first 4x using it). But overall great and something I expect to use ongoing.

Developer Response
Hi, thanks for your excellent feedback, we really appreciate it. We have some great news! The development team are working hard to implement adjustable turnaround times and rest periods. This will be made available soon. We will keep you updated with our progress.In terms of your other points, I will pass your feedback onto the development team for further investigation. Happy swimming!
Great - a few areas could be improved
02/24/2023
Swimming in NJ

Overall great app. I signed up for a free trial and after using 3 times bought a year’s subscription. Three areas I’d like to see improvements. One, the ability to see on my watch what is coming up next. I don’t see the next set until the final 10 seconds begin to count down and, if I need to put on or take off fins for example, I fall behind. Second, if I do fall behind it would be great to be able to pause or restart the set. As it is, I just usually skip one interval to get back on track. And lastly, sending the workouts to my watch (Apple SE) is glitchy at times and I need to reset the watch and/or my phone (has happened twice in the first 4x using it). But overall great and something I expect to use ongoing.
Developer Response 02/27/2023
Hi, thanks for your excellent feedback, we really appreciate it. We have some great news! The development team are working hard to implement adjustable turnaround times and rest periods. This will be made available soon. We will keep you updated with our progress.In terms of your other points, I will pass your feedback onto the development team for further investigation. Happy swimming!
Good, could be great
06/08/2022
BLACK5KY
After using this for around a month, I switched back to MySwimPro since their system is smoother, but I genuinely love what Duo is doing by competing with SwimPro. There’s just a few things this app does that, if added or fixed, would make this THE swim app, undercutting SwimPro:- On a guided workout, there’s no way to resync the watch timer with your pool’s pace clock. If you accidentally start it not exactly on the :57, you need to rely on the watch’s timer or be off set the entire workout. The same is true of if something in the lane takes you off pace (someone joins the lane, choking on water, suit malfunction, etc); you’re just stuck. Adding a “restart set” or “restart rep” button would be a massive improvement. - The sets themselves are solid, excellent even. The problem is that the training path sets don’t change (or mine is bugged) from day to day; I was on Varying Pace for three days before I juststarted using the set library. - Tracking is inconsistent, more inconsistent than using the Apple Watch’s swim workout tracking alone. A 1400yd swim might be recorded as 1000yd, heart rate data isn’t recorded, times are wrong sometimes… It’s just janky. Sending a workout to the watch takes a few tries, but I don’t fault Duo for this since every phone-watch connected app has this problem from time to time. Swim Duo is an excellent app and what they’re doing is important; it just needs another round of deep cleaning. I’ll be back‽

Developer Response
Hi, thank you for your excellent feedback and sharing it with us. We really appreciate you taking the time to review DuoSwim and provide us with such detailed feedback, this is what makes our app better.We’ve got a lot of improvements coming in v4 of DuoSwim which aligns well with your swimming requirements. We would love to know more about your needs around the timer and how we can help sync with an external timer on poolside. If you would like to chat about this, please send an email to our team at feedback@duoswim.com.We’re sorry that you experienced a bug with your Personal Training Journey. We have fixed this issue, so you will now be able to move on from Varying Pace when you’ve completed that workout.In terms of your third point, I’ve passed your feedback onto the development team for further investigation. We use Apple’s Watch sensors to track your swim so it might be a permissions issue that prevented you from seeing your heart rate etc. We will keep you updated.
Good, could be great
06/08/2022
BLACK5KY

After using this for around a month, I switched back to MySwimPro since their system is smoother, but I genuinely love what Duo is doing by competing with SwimPro. There’s just a few things this app does that, if added or fixed, would make this THE swim app, undercutting SwimPro:- On a guided workout, there’s no way to resync the watch timer with your pool’s pace clock. If you accidentally start it not exactly on the :57, you need to rely on the watch’s timer or be off set the entire workout. The same is true of if something in the lane takes you off pace (someone joins the lane, choking on water, suit malfunction, etc); you’re just stuck. Adding a “restart set” or “restart rep” button would be a massive improvement. - The sets themselves are solid, excellent even. The problem is that the training path sets don’t change (or mine is bugged) from day to day; I was on Varying Pace for three days before I juststarted using the set library. - Tracking is inconsistent, more inconsistent than using the Apple Watch’s swim workout tracking alone. A 1400yd swim might be recorded as 1000yd, heart rate data isn’t recorded, times are wrong sometimes… It’s just janky. Sending a workout to the watch takes a few tries, but I don’t fault Duo for this since every phone-watch connected app has this problem from time to time. Swim Duo is an excellent app and what they’re doing is important; it just needs another round of deep cleaning. I’ll be back‽
Developer Response 06/10/2022
Hi, thank you for your excellent feedback and sharing it with us. We really appreciate you taking the time to review DuoSwim and provide us with such detailed feedback, this is what makes our app better.We’ve got a lot of improvements coming in v4 of DuoSwim which aligns well with your swimming requirements. We would love to know more about your needs around the timer and how we can help sync with an external timer on poolside. If you would like to chat about this, please send an email to our team at feedback@duoswim.com.We’re sorry that you experienced a bug with your Personal Training Journey. We have fixed this issue, so you will now be able to move on from Varying Pace when you’ve completed that workout.In terms of your third point, I’ve passed your feedback onto the development team for further investigation. We use Apple’s Watch sensors to track your swim so it might be a permissions issue that prevented you from seeing your heart rate etc. We will keep you updated.
Quality Training Sets
07/29/2025
Distance Swimmer
I used this app to train for long distance swims and completed the Chesapeake Bay 4.4 mile swim and the Swim of Legends 8 mile swim using the workouts. I had no bugs, no issues, and it synced great with my Garmin watch. I really enjoyed the main sets and the variety of workouts. I have read reviews that indicate that the app used to have problems- but I wanted to make a review to state that this is no longer the case. I will keep using this app to keep my swims interesting.

Developer Response
Thank you so much for your incredible review and congratulations on completing the Chesapeake Bay 4.4 mile and Swim of Legends 8 mile swims! We're thrilled to hear that the app supported your training and that everything worked seamlessly with your Garmin. It means a lot that you took the time to highlight the improvements and share your experience. We'll keep working hard to deliver fresh, high-quality workouts to keep your swims engaging. Thanks again for being part of the DuoSwim community! 🏊‍♂️
Quality Training Sets
07/29/2025
Distance Swimmer

I used this app to train for long distance swims and completed the Chesapeake Bay 4.4 mile swim and the Swim of Legends 8 mile swim using the workouts. I had no bugs, no issues, and it synced great with my Garmin watch. I really enjoyed the main sets and the variety of workouts. I have read reviews that indicate that the app used to have problems- but I wanted to make a review to state that this is no longer the case. I will keep using this app to keep my swims interesting.
Developer Response 08/05/2025
Thank you so much for your incredible review and congratulations on completing the Chesapeake Bay 4.4 mile and Swim of Legends 8 mile swims! We're thrilled to hear that the app supported your training and that everything worked seamlessly with your Garmin. It means a lot that you took the time to highlight the improvements and share your experience. We'll keep working hard to deliver fresh, high-quality workouts to keep your swims engaging. Thanks again for being part of the DuoSwim community! 🏊‍♂️
Nearly Perfect
12/19/2022
KolorblindKid
There are a lot of apps in the virtual swim coaching space, some better than others. For the price, Duo is a cut above the rest for variety, creativity, intensity and consistency of workout. The new Apple Watch interface is also sleek and has all the information I want to see while swimming a workout. I gave a 4 instead of a perfect 5 because I had a few critiques that I’m hoping can be addressed by support. The first and most frustrating for me is the integration with apple’s fitness tracking. Duo will log the workout in apple fitness STARTING from the moment I conclude a guided swim. The result is a logged work out with all the prescripted output metrics like distance swum and calories burned, but with all the live heart rate tracking missing. I know the watch is tracking my heart rate live while I swim because I see it in the interface. But the recorded workout shows my heart rate as my BPM for the hour following the conclusion of the workout. This is the major concern that I will like fixed as it makes it very difficult to empirically track my training progress.Another set of features that I would like (that exists on swim trackers less expensive than this one) is: rest detection and pace tracking. With rest detection, health metrics can be stratified into active periods and resting periods. That way things like active heart rate or resting recovery rate can be calculated to add more rich metrics to the fitness tracking. With pace tracking I can see what MY average pace was (instead of the average pace of the whole workout) and I can see my splits for pace work during the main set of a work out (I’m not particularly concerned with what my pace is during the warm up set). Additionally, would it be possible to add an option to change the vibration intensity? It is not strong enough for me to feel while I’m moving. So if I am off pace and miss an interval, I won’t know until I look at my watch on the wall. The time need to read the watch is time I could spend playing catch up so I don’t miss the next interval.Finally, and I know this one is splitting hairs, so believe me it doesn’t influence my rating, I wish there was an option to create custom workouts. I really appreciate the new Apple Watch interface and sometimes if I find a really interesting set, I would love to write it up and run it as a guided swim. This feature exists in other apps in the market.

Developer Response
Hi, thanks for your feedback and for sharing it with us. We really appreciate you taking the time to review DuoSwim and provide us with such detailed feedback. We are pleased to hear you like many features of the app and our development team will be looking into your recommendations. If you would like to chat about this, please send an email to our team at feedback@duoswim.com.
Nearly Perfect
12/19/2022
KolorblindKid

There are a lot of apps in the virtual swim coaching space, some better than others. For the price, Duo is a cut above the rest for variety, creativity, intensity and consistency of workout. The new Apple Watch interface is also sleek and has all the information I want to see while swimming a workout. I gave a 4 instead of a perfect 5 because I had a few critiques that I’m hoping can be addressed by support. The first and most frustrating for me is the integration with apple’s fitness tracking. Duo will log the workout in apple fitness STARTING from the moment I conclude a guided swim. The result is a logged work out with all the prescripted output metrics like distance swum and calories burned, but with all the live heart rate tracking missing. I know the watch is tracking my heart rate live while I swim because I see it in the interface. But the recorded workout shows my heart rate as my BPM for the hour following the conclusion of the workout. This is the major concern that I will like fixed as it makes it very difficult to empirically track my training progress.Another set of features that I would like (that exists on swim trackers less expensive than this one) is: rest detection and pace tracking. With rest detection, health metrics can be stratified into active periods and resting periods. That way things like active heart rate or resting recovery rate can be calculated to add more rich metrics to the fitness tracking. With pace tracking I can see what MY average pace was (instead of the average pace of the whole workout) and I can see my splits for pace work during the main set of a work out (I’m not particularly concerned with what my pace is during the warm up set). Additionally, would it be possible to add an option to change the vibration intensity? It is not strong enough for me to feel while I’m moving. So if I am off pace and miss an interval, I won’t know until I look at my watch on the wall. The time need to read the watch is time I could spend playing catch up so I don’t miss the next interval.Finally, and I know this one is splitting hairs, so believe me it doesn’t influence my rating, I wish there was an option to create custom workouts. I really appreciate the new Apple Watch interface and sometimes if I find a really interesting set, I would love to write it up and run it as a guided swim. This feature exists in other apps in the market.
Developer Response 12/22/2022
Hi, thanks for your feedback and for sharing it with us. We really appreciate you taking the time to review DuoSwim and provide us with such detailed feedback. We are pleased to hear you like many features of the app and our development team will be looking into your recommendations. If you would like to chat about this, please send an email to our team at feedback@duoswim.com.

What’s New in Version 4 The all-new DuoSwim 4 is here, rebuilt for smarter tracking, smoother performance, and faster results in the pool. All-New DuoSwim AI Smarter, faster, and more personalized than ever. AI now analyzes your swims to highlight where you’re gaining speed and efficiency. Complete Redesign A sleek new look built for performance. Cleaner visuals, faster navigation, and a sharper focus on your goals. Enhanced Watch Sync Stronger connection with Apple Watch, Garmin, and Strava for real-time distance, pace, and stroke tracking. Advanced Analytics Dashboard Dive deeper into your data with new insights for heart-rate zones, stroke count, pace trends, and SWOLF efficiency. New Swim Profile Set your preferred pool length, measurement units, and display options for a more personalized training experience. New Training Plans Discover fresh, expert-written plans for every goal, from fitness and technique to speed, endurance, and triathlon prep. Triathlon & Open-Water Upgrades Improved GPS accuracy, pacing feedback, and race-simulation sets for open-water swimmers and triathletes. Faster. Smarter. More Powerful. Every part of DuoSwim has been refined to help you train smarter, swim faster, and track every lap like a pro. Update now and experience the next generation of swim training.

Version 4.0.7 1h ago

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Information

Seller: Spinning Falcon Ltd
Size: 99.4 MB
Category: Health & Fitness
Compatibility: Requires iOS 15.6 or later.

iPhone
Requires iOS 15.6 or later.

iPod touch
Requires iOS 15.6 or later.

Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.

Apple Watch
Requires watchOS 10.0 or later.
Languages: English
Age Rating: 9+

9+

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Contains
Health or Wellness Topics
In-App Purchases: Yes

DuoSwim Pro $99.99

Monthly $19.99

3 Months $49.99

DuoSwim Subscription $99.99

DuoSwim Annual Subscription $99.99

DuoSwim Annual Subscription $83.99

DuoSwim Annual Subscription $83.99

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