Phlex Swim App vs BSICoS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Phlex Swim App
This app offers advanced swimming workout tracking with AI-powered precision. It monitors distance, time, technique, heart rate, and training effect, providing insights into progress and areas for improvement. Integrates with HealthKit for a comprehensive health overview.
- AI-powered workout tracking
- Distance, time, and set recognition
- Technique analysis (distance per stroke, efficiency)
- Heart rate monitoring
- Progress tracking (technique, fitness, endurance, readiness)
- HealthKit integration
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With Phlex, you'll experience unparalleled accuracy in swimming workout tracking. Our platform utilizes state-of-the-art AI technology to ensure the highest level of precision in every measurement. Download the Phlex App today and start your journey towards a more fulfilling and enjoyable swimming experience. Workout Tracking Features: DISTANCE SET RECOGNITION (e.g. 10 x 100 freestyle) SWIM TIME (e.g. 100 free - 1:18.6) TECHNIQUE (distance per stroke, stroke efficiency) HEART RATE (max and average) TRAINING EFFECT Phlex is a comprehensive solution that not only tracks workouts but also tracks your progress over time in crucial areas like technique, endurance, fitness, and training readiness. With the Phlex platform, you will gain valuable insights, identify areas for improvement, and take your swimming prowess to new heights. How we track your progress: TECHNIQUE - we analyze your distance per stroke, stroke rate, and stroke index at 5 different intensity zones to measure whether your technique is improving. FITNESS - we measure your swimming speed in 5 different intensity zones. If, over time, you get faster within the same training zones, that means your training is working and your fitness levels have improved. ENDURANCE - similar to fitness, we measure your swimming pace in different intensity zones to analyze whether your aerobic and anaerobic endurance improve. READINESS - using scientifically based models, we calculate the training load of your sessions, providing you with valuable data to make educated training decisions. HealthKit Integration: Phlex integrates with HealthKit to provide you with a seamless experience. By connecting with HealthKit, you can easily sync your swimming workout data, including distance, swim time, and heart rate, with the Health app on your iOS device. This integration allows you to keep all your health and fitness data in one place and track your progress over time. Whether you're a competitive swimmer striving for victory or a passionate enthusiast seeking personal growth, Phlex is the game-changer you've been waiting for. With its intuitive interface and cutting-edge analytics, Phlex empowers you to make informed decisions, optimize your training, and maximize your progress. Phlex requires a compatible hardware device. Currently, the supported device that can be connected to the app for workout collection is the Polar Verity Sense sensor. The Phlex Swim App integrates with the Health app. Phlex Terms Of Service https://phlex.webflow.io/terms-of-service Phlex Privacy Policy https://phlex.webflow.io/privacy
BSICoS
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Application for recording pulse photoplethysmographic (PPG) signals using the device’s camera. Connect your favorite wearables. Perform stress tests to assess your stress reactivity. If you want an account to store your recordings in the cloud and access automatic signal processing, get in touch via email.
Screenshots
Verdict
The clearest difference is in-app purchases: BSICoS at none against Phlex Swim App's 2. BSICoS also leads on ads (none vs shown). Phlex Swim App's advantage is update cadence (every 3 weeks vs every 6 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Phlex Swim App sells 2 in-app purchases, starting at $12.99 per month. BSICoS asks for nothing beyond the download.
Phlex Swim App ships an update every 3 weeks, BSICoS every 6 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | Phlex Swim App | BSICoS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (38 ratings) — better | — |
| Positive reviews | 70.0% of reviews | — |
| Number of ratings | 38 — better | — |
| Update frequency | Every 3 weeks — better | Every 6 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 189 MB | 37 MB |
| Age rating | 4+ | 12+ |
| Developer | Phlex LLC | Diego Cajal |
In-app purchases
Phlex Swim App
- Monthly Membership7 Days trial$12.991 Month
- Annual Membership1 Month trial$119.991 Year
BSICoS
No in-app purchases









