Flexnest vs boAt Crest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flexnest
This app revolutionizes at-home fitness by tracking over 13 body parameters and monitoring your progress with easy-to-understand graphs. It integrates with HealthKit for step tracking and CareKit for heart rate monitoring, offering a holistic workout experience.
- Tracks 13+ body parameters
- Monitors body composition changes
- Integrates with HealthKit for step tracking
- Uses CareKit for heart rate monitoring
- Provides easy-to-understand graphs and metrics
- Offers holistic at-home workout experience
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The Flexnest App is here to revolutionize At-Home workouts and your fitness journey. The Flexnest app is compatible with the Flexscale – India’s 1st and smartest weighing scale which tracks over 13+ body parameters like Body Fat, Protein, BMI etc. The Flexnest App also keeps a track of changes to your body with easy to understand graphs and metrics. App neeeds access to HealthKit, in order to read steps from HealthKit and counts the average steps walked to display in the App. App uses care kit needs To track BPM and Heart condition. The app comes with a content subscription. Flexnest Content Subscription Flexnest plans: Monthly: INR 600 Half-Yearly: INR 3000 Yearly: INR 3600 Payments and Renewal: Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase No cancellation of the current subscription is allowed during the active period. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy policy: https://www.theflexnest.com/pages/privacy-policy-1 Terms and Conditions: https://www.theflexnest.com/pages/privacy-policy We at Flexnest are on a mission to make At-Home workouts truly engaging and irresistibly convenient for everyone, by bringing to you a holistic workout experience - right in the comfort of your nest.
boAt Crest
Connect your smart watch to your iPhone to track sleep, fitness activities, and calories. Customize your watch with various faces, find your phone from your wrist, and receive alerts for calls and messages. Earn badges and share progress with friends and family.
- Sleep tracking
- Fitness and activity tracking
- Customizable watchfaces
- Phone finder
- Call and message alerts
- Fitness rank and badges
- Share fitness progress
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The boAt Crest app allows you to link your smart watch with your iPhone. Sleep Tracking --------------- Auto track your Sleep duration and quality. Fitness and Activity Tracking ---------------------------- Track your Steps, Distance and Calories burnt along with support for multiple activities like Running, Cycling, Walking, Yoga, and many more. Watchfaces ----------- A variety of watchfaces to suit your style. Select and push desired watchfaces from the app. Phone Finder ------------- Find your phone from the watch using the Phone Finder feature. Alerts ------ Receive Sedentary reminders and alerts on watch for Calls, SMS and Social messages. Fitness Rank & Badges ----------------------- Earn badges as you keep fit and monitor how you stack up against others to get inspired and stay motivated. Fitness Buddies ---------------- Share your fitness progress with your friends & loved ones Wellness Crew -------------- Enable your collective wellbeing by sharing your vitals and other details with your family and friends. Apple Health ------------ Apple Health is integrated with this app so that you can track your health with awesome features of the Apple Health Application. We push Steps data to Health App for better analysis of data for users.
Screenshots
Verdict
The clearest difference is rating: Flexnest at 4.5 against boAt Crest's 3.9. Flexnest also leads on device support (4 vs 1) and iOS requirement (13.0 vs 16.0). boAt Crest's advantage is in-app purchases (none vs 6) and review sentiment (35% vs 24%). On price 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
Both are free to download. Flexnest sells 6 in-app purchases, starting at $5.99 per month. boAt Crest asks for nothing beyond the download.
Flexnest holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: boAt Crest has 119 ratings behind it against 22, so its average is the more settled of the two. Written reviews complicate that: 24% of Flexnest's written reviews are positive against 35% of boAt Crest's, so the app with the better star average is not the one people write more warmly about.
Flexnest ships an update every 6 weeks, boAt Crest every 3 weeks. Both last shipped on October 24, 2026.
| Parameter | Flexnest | boAt Crest |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (22 ratings) — better | 3.9 (119 ratings) |
| Positive reviews | 24.1% of reviews | 34.7% of reviews — better |
| Number of ratings | 22 | 119 — better |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 206 MB | 618 MB |
| Age rating | 4+ | 4+ |
| Developer | Flexnest | KaHa Pte Ltd. |
Customer experience
Flexnest
boAt Crest
User reviews
Flexnest
From 22 App Store ratingsWhat we love
- ⭐ Amazing build quality
- 👍 Smooth operation
- 🌟 Fabulous technology and content
- 👍 Works best with Flexnest products
- 👍 Easy to use app
Room to improve
- ❌ App crashes frequently
- ❌ Frequent authentication issues
- ❌ Poor customer support
- ❌ Subscription required for basic features
- ❌ Login and registration problems
boAt Crest
From 119 App Store ratingsWhat we love
- 👍 User-friendly interface and easy navigation
- 🎯 Accurate fitness tracking and step counting
- 🔋 Good battery life (7+ days)
- 🎨 Customizable watch faces and personalization
- 📱 Seamless device connectivity when working
Room to improve
- 🐛 Frequent app crashes and freezing
- 🔌 Persistent syncing issues and connection drops
- 📵 OTP not received (especially for international numbers)
- ⚠️ App becomes unresponsive during sync operations
- 🔄 Mandatory firmware updates that fail repeatedly
Bugs and requests
Flexnest
Reported bugs
36 issues- App crashes frequently
- Authentication required error
- Login and registration failures
- Data synchronization errors
- App not working after updates
Show 31 moreShow fewer
- Workout data not saved
- Offline downloads fail
- App crashes on specific devices/OS versions
- Heart rate not recorded
- App freezes or hangs
- Locked out of the app
- Incorrect birthday error
- Cannot create new accounts
- Cannot log in with previous credentials
- Invalid OTP
- App crashes when specifying height
- Account creation errors with Apple ID
- Background running issues
- Timer runs at double speed in background
- Calorie calculation errors in background
- App stuck loading thumbnails
- Calories reset to zero on pause
- App crashes on iOS 15
- App crashes when inputting age
- App crashes when trying to login
- App crashes when turning on graphical representation
- Incorrect BMI readings
- Parameters showing '0' except weight
- App not connecting to devices
- Cannot skip lessons
- No bookmark section
- Workout history unavailable for non-subscribers
- Graphs not showing properly
- App doesn't write to Apple Health
- Data inconsistency between pop-ups and scale
- Profile data mixing
Requested features
40 requests- Fix authentication issues
- Improve app stability
- Enhance customer support responsiveness
- Streamline subscription strategy
- Allow access to own data without subscription
Show 35 moreShow fewer
- Fix bugs related to workout saving
- Improve offline exercise download functionality
- Ensure app works on all devices (iPad, iPhone)
- Fix heart rate recording issues
- Resolve login and registration problems
- Address incorrect birthday errors
- Enable creation of new accounts
- Fix OTP validation issues
- Improve app crashing issues when specifying height
- Fix account creation errors with Apple ID
- Enable background running functionality
- Improve Apple Watch compatibility
- Correct workout data categorization (indoor vs. outdoor)
- Ensure calories burnt update in Apple Health
- Provide access to workout history for non-subscribers
- Fix graph display issues
- Address incorrect BMI readings
- Fix parameters showing '0' except weight
- Remove constant requests for location permission
- Enable app to write data to Apple Health
- Add graphical presentation of daily/monthly usage
- Fix calorie reset to zero on pause
- Fix app crashing on iOS 15
- Fix app crashing when inputting age or logging in
- Fix app crashing when turning on graphical representation
- Improve user interface
- Fix app connection to devices
- Allow skipping lessons when repeating rides
- Add a bookmark section for rides
- Sync app data with website data
- Allow passwordless OTP login
- Improve integration with Apple ecosystem
- Allow tracking of readings at different time periods
- Fix data inconsistency between pop-ups and scale
- Fix profile data mixing issues
boAt Crest
Reported bugs
17 issues- App crashes when viewing heart rate graphs
- Sync loop with configuration errors every 5 seconds
- Connection fails every 1 week requiring watch reset
- Time zone displays incorrectly (AM/PM issues)
- Watch face changes not persisting
Show 12 moreShow fewer
- OTP verification not working on iOS
- Steps not syncing after iOS 18 update
- App stuck at 'Additional Configuration' message
- Bluetooth calling feature not working despite being enabled
- Call notification toggle button non-functional
- App crashes after syncing completes
- Data sync issues with mobile OTP
- Watch model not appearing in app (Lunar Peak, BoAt Ultima Prime)
- Weather tracking feature not functioning
- Notifications stopping randomly
- Watch auto-restarting repeatedly
- Firmware update stuck at step 1 of 2
Requested features
14 requests- Facebook Messenger notifications support
- Sleep score and recovery score metrics
- Improved accuracy for sleep tracking and afternoon naps
- Pace data in walking activities
- Multiple activity trackers on tracking screen
Show 9 moreShow fewer
- Auto heart rate monitoring every 5 minutes
- Weightlifting/gym activity tracking
- More notification options (Messenger, Viber, Twitter)
- Background sync to allow app usage during sync
- Email login alternative to OTP
- SOS feature for all watch models
- Live watch faces
- Better watch face variety and information display
- Silent/mute option for smart rings
In-app purchases
Flexnest
- Monthly$5.991 Month
- Monthly1 Month trial$5.991 Month
- Half yearly$29.996 Months
Show 3 moreShow fewer
- Half-Yearly1 Month trial$29.996 Months
- Yearly$34.991 Year
- Yearly1 Month trial$34.991 Year
boAt Crest
No in-app purchases









