# HD Fit Pro vs FireBoltt Invincible

HD Fit Pro and FireBoltt Invincible both sit at 3.6 stars, but that hides the real split: 30% of HD Fit Pro's written reviews are positive against 10% of FireBoltt Invincible's. HD Fit Pro also leads on ratings volume (121 vs 6). FireBoltt Invincible's advantage is iOS requirement (11.0 vs 13.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.6 for HD Fit Pro against 3.5 for FireBoltt Invincible. That said, the two scores are not equally well evidenced: HD Fit Pro has 121 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 30% of HD Fit Pro's written reviews are positive against 10% of FireBoltt Invincible's.

HD Fit Pro ships an update every 2 weeks, FireBoltt Invincible fortnightly. The most recent releases landed on November 12, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | HD Fit Pro | FireBoltt Invincible |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (121 ratings)](https://appshunter.io/ios/app/hd-fit-pro/id1601611643/reviews)** | [3.5 (6 ratings)](https://appshunter.io/ios/app/fireboltt-invincible/id1603034044/reviews) |
| Number of ratings | **121** | 6 |
| Positive reviews | **29.8% of reviews** | 9.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free | Free |
| Size | 537 MB | 247 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Huadafeng Electronics Co., Ltd.](https://appshunter.io/developer/1524150290) | [TomStar](https://appshunter.io/developer/1603034256) |

## What reviewers say

### HD Fit Pro

[App page](https://appshunter.io/ios/app/hd-fit-pro/id1601611643)

This smart health app integrates data and services from Bluetooth wearable devices. It tracks various sports activities and monitors daily health metrics like steps and sleep, helping users manage their physical well-being and build healthy routines.

**Highlights:** Bluetooth wearable device integration, Sports data recording (running, cycling, climbing), Step and sleep monitoring, Health data management, Daily exercise tracking, Healthy routine development

**Features:** Vision Pro support

**In-app purchases:** none


### FireBoltt Invincible

[App page](https://appshunter.io/ios/app/fireboltt-invincible/id1603034044)

Enhance your smartwatch experience by receiving instant notifications for messages, calls, and social media. Monitor vital health metrics like SpO2, blood pressure, and heart rate 24/7, while precisely tracking daily activities and sleep.

**Highlights:** Instant notification alerts, 24/7 heart rate monitoring, SpO2 level tracking, Blood pressure monitoring, Activity and sleep tracking, HealthKit integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HD Fit Pro free?

HD Fit Pro is free to download, with no in-app purchases.

### Is FireBoltt Invincible free?

FireBoltt Invincible is free to download, with no in-app purchases.

### Which has better reviews, HD Fit Pro or FireBoltt Invincible?

HD Fit Pro is rated higher. HD Fit Pro averages 3.6 out of 5 from 121 ratings, while FireBoltt Invincible averages 3.5 from 6 ratings.

### Do HD Fit Pro or FireBoltt Invincible have ads?

Neither HD Fit Pro nor FireBoltt Invincible shows ads.

### Which is updated more often, HD Fit Pro or FireBoltt Invincible?

HD Fit Pro ships an update every 2 weeks, and FireBoltt Invincible fortnightly. Most recently, HD Fit Pro was updated on November 12, 2026 and FireBoltt Invincible on November 3, 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.*