# Flexnest vs boAt Crest

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.

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 25, 2026.

## The numbers

| Metric | Flexnest | boAt Crest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (22 ratings)](https://appshunter.io/ios/app/flexnest/id1556409019/reviews)** | [3.9 (119 ratings)](https://appshunter.io/ios/app/boat-crest/id1573391983/reviews) |
| Number of ratings | 22 | **119** |
| Positive reviews | 24.1% of reviews | **34.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Subscription | **Free** |
| Size | 206 MB | 618 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Flexnest](https://appshunter.io/developer/1556409021) | [KaHa Pte Ltd.](https://appshunter.io/developer/1178524096) |

## What reviewers say

### Flexnest

[App page](https://appshunter.io/ios/app/flexnest/id1556409019)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Monthly | $5.99 | per month |
| Half yearly | $29.99 | per 6 months |
| Half-Yearly | $29.99 | per 6 months |
| Yearly | $34.99 | per year |
| Yearly | $34.99 | per year |

**What reviewers like**

- ⭐ Amazing build quality
- 👍 Smooth operation
- 🌟 Fabulous technology and content
- 👍 Works best with Flexnest products
- 👍 Easy to use app

**What reviewers complain about**

- ❌ App crashes frequently
- ❌ Frequent authentication issues
- ❌ Poor customer support
- ❌ Subscription required for basic features
- ❌ Login and registration problems

**Reported bugs**

- App crashes frequently
- Authentication required error
- Login and registration failures
- Data synchronization errors
- App not working after updates

**Requested features**

- Fix authentication issues
- Improve app stability
- Enhance customer support responsiveness
- Streamline subscription strategy
- Allow access to own data without subscription


### boAt Crest

[App page](https://appshunter.io/ios/app/boat-crest/id1573391983)

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.

**Highlights:** Sleep tracking, Fitness and activity tracking, Customizable watchfaces, Phone finder, Call and message alerts, Fitness rank and badges, Share fitness progress

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked questions

### Is Flexnest free?

Flexnest is free to download, with in-app purchases available.

### Is boAt Crest free?

boAt Crest is free to download, with no in-app purchases.

### Which has better reviews, Flexnest or boAt Crest?

Flexnest is rated higher. Flexnest averages 4.5 out of 5 from 22 ratings, while boAt Crest averages 3.9 from 119 ratings.

### Do Flexnest or boAt Crest have ads?

Neither Flexnest nor boAt Crest shows ads.

### Which is updated more often, Flexnest or boAt Crest?

Flexnest ships an update every 6 weeks, and boAt Crest every 3 weeks. Most recently, Flexnest was updated on October 25, 2026 and boAt Crest on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*