# Letsfit vs 3+ PRO

The clearest difference is rating: Letsfit at 4.5 against 3+ PRO's 3.6. Letsfit also leads on ratings volume (5.6K vs 576). 3+ PRO's advantage is review sentiment (43% vs 25%). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Letsfit holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: Letsfit has 5.6K ratings behind it against 576, so its average is the more settled of the two. Written reviews complicate that: 25% of Letsfit's written reviews are positive against 43% of 3+ PRO's, so the app with the better star average is not the one people write more warmly about.

Letsfit ships an update every 5 weeks, 3+ PRO every 2 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | Letsfit | 3+ PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (5.6K ratings)](https://appshunter.io/ios/app/letsfit/id1513538386/reviews)** | [3.6 (576 ratings)](https://appshunter.io/ios/app/3-plus-pro/id1543642182/reviews) |
| Number of ratings | **5.6K** | 576 |
| Positive reviews | 25.4% of reviews | **42.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 134 MB | 106 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Letsfit LLC](https://appshunter.io/developer/1530476999) | [3Plus International](https://appshunter.io/developer/906136113) |

## What reviewers say

### Letsfit

[App page](https://appshunter.io/ios/app/letsfit/id1513538386)

Track your daily fitness and wellness with this app. It records and interprets health data like steps, sleep, and heart rate, and analyzes exercise routines with route mapping. It also acts as a notifications assistant for your connected smartwatch.

**Highlights:** Health data display (steps, sleep, heart rate, calories), Exercise data analysis with route tracking, Smartwatch notifications assistant (calls, SMS), Professional data interpretations, Synchronization with Apple Health (HealthKit)

**In-app purchases:** none

**What reviewers like**

- 🚀 Great overall watch
- 👍 Affordable and stylish
- 👍 Helpful health tracking features
- 👍 Comfortable and durable
- 👍 Excellent customer support

**What reviewers complain about**

- 🐛 Syncing and connectivity issues
- 🐛 Inaccurate step and sleep tracking
- 🐛 Unreliable heart rate monitoring
- 🐛 Frequent software glitches and crashes
- 🔋 Short battery life

**Reported bugs**

- Watch time not updating correctly
- App fails to sync data consistently
- Inability to change watch faces
- Disconnection issues between watch and phone

**Requested features**

- Add more workout modes
- Allow editing of activity data
- Improve notification handling
- Provide map tracking for activities
- Add blood pressure monitoring


### 3+ PRO

[App page](https://appshunter.io/ios/app/3-plus-pro/id1543642182)

Track daily activity like steps, distance, and calories. Set personalized fitness goals and monitor progress. Features include heart rate monitoring, smart notifications, and weather updates, with data syncing to HealthKit.

**Highlights:** Activity tracking (steps, distance, calories), Personalized goal setting, Heart rate monitoring, Smart notifications, Weather updates, HealthKit synchronization

**In-app purchases:** none

**What reviewers like**

- 👍 Good watch and app
- 🚀 Affordable and customizable
- 🔒 Robust security features
- 💡 Helpful for tracking activity

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Unreliable notifications
- 🐛 Sync and pairing problems
- 🔋 Battery life concerns

**Reported bugs**

- App crashes and freezes
- Inaccurate activity tracking
- Compatibility issues with newer devices
- Inability to change time format

**Requested features**

- Add call and text functionality
- Expand workout tracking options
- Improve watch face customization
- Implement sleep tracking feature


## Frequently asked questions

### Is Letsfit free?

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

### Is 3+ PRO free?

3+ PRO is free to download, with no in-app purchases.

### Which has better reviews, Letsfit or 3+ PRO?

Letsfit is rated higher. Letsfit averages 4.5 out of 5 from 5.6K ratings, while 3+ PRO averages 3.6 from 576 ratings.

### Do Letsfit or 3+ PRO have ads?

Neither Letsfit nor 3+ PRO shows ads.

### Which is updated more often, Letsfit or 3+ PRO?

Letsfit ships an update every 5 weeks, and 3+ PRO every 2 months. Most recently, Letsfit was updated on October 16, 2026 and 3+ PRO on October 16, 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.*