Comparison

KeepSwinging vs Breathe Bubbles

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

KeepSwinging

This app analyzes your Apple Watch sensor data using machine learning to provide detailed badminton shot metrics and swing analysis. Earn 3D badges, visualize progress with charts, and securely store your data in iCloud.

Highlights
  • Real-time badminton score tracking
  • Apple Watch sensor analysis
  • Machine learning shot metrics
  • Maximum racket speed calculation
  • Swing count analysis
  • 3D motivational badges
  • Progress chart analysis
Features
Read full description

KeepSwinging App is a high-quality and highly accurate badminton tracking app. By analyzing sensor data from your Apple Watch, combined with machine learning technology, it provides detailed analysis and recording of various metrics, including overhead, underhand, forehand, backhand shots, maximum racket speed, and swing counts. In addition to accurate metrics, we offer a wide range of beautifully designed 3D badges to boost your motivation for completing workouts. We also provide comprehensive chart analysis features, allowing you to visualize your progress. We take your data security very seriously. The app's heart rate and calorie data come from the system's Fitness app, while other data are saved to your iCloud account. Subscriptions and Payments: - Flexible options for 1-month or 1-year subscriptions. - Auto-renewal for easy management, with the option to cancel anytime. - Payment will be charged to your iTunes account upon confirmation of purchase. Subscriptions will automatically renew, and your iTunes account will be charged within 24 hours prior to the end of the current period. You can cancel your subscription in the system settings under [Settings] -> [iTunes Store & App Store] -> [Apple ID]. Terms and Privacy: - Terms of Use: https://telamifly-studio.super.site/keepswinging/privacy-policy - Privacy Policy: https://telamifly-studio.super.site/keepswinging/pro-membership-subscription-agreement

About

Breathe Bubbles

This science-based tool uses Apple Watch to visualize your breathing and analyze heart rate variability for real-time stress management. It offers guided exercises to improve focus, reduce anxiety, and enhance self-control, with comprehensive health metric insights and trend tracking.

Highlights
  • Real-time stress detection via HRV
  • Guided breathing exercises with animation
  • Prefrontal cortex recovery training
  • Trend recording and data feedback
  • Standalone Apple Watch use
  • Integration with Apple Health
Features
Read full description

Breath Bubbles: Make Your Breath Visible, Keep Stress Manageable A Science-Based Breathing Tool for Real-Time Insight – Exclusive Stress Management for Apple Watch Do you often feel: Mentally tense and struggling to relax? Anxious before bed, unable to fall asleep? Low in self-control, finding it hard to focus? Wanting to practice breathing meditation but not knowing where to start? Breath Bubbles makes breathing exercises intuitive, effortless, and sustainable for you. Combined with real-time HRV (Heart Rate Variability) analysis on Apple Watch, it lets you "see" stress, take control of your emotions, and rediscover calm amid a busy life. Key Feature Highlights Real-Time Stress Detection via HRV Apple Watch collects real-time heart rate data Dynamically calculates HRV to quantify stress levels Intuitively identify when you’re under high stress and adjust your physical/mental state in time Comprehensive Health Metric Insights Beyond HRV, it also integrates data like heart rate and respiratory rate Help you gain a fuller understanding of your physical condition and recovery ability Trend tracking makes changes in your health visible at a glance Guided Breathing Exercises Original "bubble" breathing animation for a more immersive practice experience Multiple modes to choose from: Quick Stress Relief Bubbles, Focus Enhancement Bubbles, Pre-Sleep Relaxation Bubbles, and Custom Breathing Rhythms Every breath is a moment of connection with yourself Prefrontal Cortex Recovery Training & Self-Control Improvement Focuses on restoring the function of the brain’s prefrontal cortex Enhances emotional regulation and self-control abilities Helps you stay calm and rational in high-stress situations Trend Recording & Data Feedback Daily stress fluctuation charts Long-term HRV trend tracking Statistics on the number and duration of breathing exercises Full integration with Apple Health for data syncing Standalone Use on Apple Watch No need to carry your iPhone – start practicing anytime, anywhere Perfect for fragmented time slots: between work tasks, before bed, or prior to meetings We believe that breathing is not the end goal of training, but the key to connecting your body and emotions. Breath Bubbles helps you find balance and control amid stress and busyness. Device & System Requirements iPhone: For viewing and managing breathing data Apple Watch Series 4 or later: Supports HRV detection and breathing training iOS 17 / watchOS 10 or later Privacy Protection Commitment Health data is stored only on your local device or in Apple Health. No data is uploaded or shared – only you can view and control your information. Download Breath Bubbles Now With each gentle breath, train yourself to be more calm and composed. Auto-Renewing Membership Terms Payment: After confirming your purchase, the amount will be charged to your iTunes account. Management: You can manage your subscription and auto-renewal settings in your account settings. Cancellation: Auto-renewal must be manually turned off at least 24 hours before the end of the current billing cycle. Renewal: A fee will be charged and the subscription period will be extended within 24 hours prior to the expiration of your current subscription. User Agreement https://breads-doubt-hvc.craft.me/E7oSn9RMvdwl7E Privacy Policy https://breads-doubt-hvc.craft.me/T68hDJ2XNewEs1

Screenshots

KeepSwinging4 screens
Breathe Bubbles4 screens

Verdict

The call

The clearest difference is update cadence: Breathe Bubbles at weekly against KeepSwinging's monthly. On price, rating, ratings volume and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KeepSwinging sells 5 in-app purchases, starting at $2.99 per month and Breathe Bubbles sells 9 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for KeepSwinging against 5.0 for Breathe Bubbles. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

KeepSwinging ships an update monthly, Breathe Bubbles weekly. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

Scorecard1 real difference · 9 level
KeepSwinging versus Breathe Bubbles: the parameters behind the verdict, then further details
ParameterKeepSwingingBreathe Bubbles
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews90.0% of reviews
Number of ratings23 — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS16.0 — better17.0
Further details — not scored
Size162 MB45 MB
Age rating4+4+
Developer宏超 朱希 陈

Customer experience

KeepSwinging

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Breathe Bubbles

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews20 reviews
Positive90.0%
Neutral5.0%
Negative5.0%

In-app purchases

5 purchases

KeepSwinging

Subscriptions3
  • Pro 1 Month$2.991 Month
  • Pro 1 Year7 Days trial$12.991 Year
  • Pro 1 Year Plus7 Days trial$14.991 Year
One-time2
  • Lifetime$19.99
  • Lifetime-Plus$29.99
9 purchases

Breathe Bubbles

Subscriptions3
  • Monthly Membership$9.991 Month
  • Quarterly Membership$14.993 Months
  • Annual Membership3 Days trial$29.991 Year
One-time6
  • Snack Pack$4.99
  • Give a Coffee$8.99
  • a hamburger$9.99
Show 3 more
  • Lifetime Membership$34.99
  • Lifetime Membership$49.99
  • Lifetime Membership$99.99

Questions

Is KeepSwinging free?
KeepSwinging is free to download, with in-app purchases available.
Is Breathe Bubbles free?
Breathe Bubbles is free to download, with in-app purchases available.
Which has better reviews, KeepSwinging or Breathe Bubbles?
KeepSwinging and Breathe Bubbles are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do KeepSwinging or Breathe Bubbles have ads?
Neither KeepSwinging nor Breathe Bubbles shows ads.
Which is updated more often, KeepSwinging or Breathe Bubbles?
KeepSwinging ships an update monthly, and Breathe Bubbles weekly. Most recently, KeepSwinging was updated on September 18, 2026 and Breathe Bubbles on September 24, 2026.

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