# Blueriiot vs U

The clearest difference is in-app purchases: U at none against Blueriiot's 12. U also leads on update cadence (every 3 days vs every 5 weeks) and iOS requirement (13.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. Blueriiot sells 12 in-app purchases, starting at $3.49 per month. U asks for nothing beyond the download.

Blueriiot ships an update every 5 weeks, U every 3 days. The most recent releases landed on October 29, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Blueriiot | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (116 ratings)](https://appshunter.io/ios/app/blueriiot-blue-connect/id1109733256/reviews)** | — |
| Number of ratings | **116** | — |
| Positive reviews | 54.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 96 MB | 37 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fluidra Global Distribution S.L.](https://appshunter.io/developer/1626820054) | [Guangdong Crystal Island Healthwise Co.,Ltd](https://appshunter.io/developer/1585126989) |

## What reviewers say

### Blueriiot

[App page](https://appshunter.io/ios/app/blueriiot-blue-connect/id1109733256)

This app monitors your swimming pool or spa water quality 24/7 when paired with a compatible water analyzer. It provides real-time data on temperature, pH, disinfectant levels, and conductivity, offering personalized maintenance advice and alerts for any issues.

**Highlights:** 24/7 water quality monitoring, Real-time temperature, pH, disinfectant, and conductivity readings, Personalized chemical recommendations, Maintenance alerts, Dashboard and data trends, Bluetooth and Wi-Fi connectivity options

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Blue Connect monthly | $3.49 | per month |
| Platinum | $5.99 | per month |
| 1 Blue Connect GO monthly | $6.49 | per month |
| 2 Blue Connect monthly | $7.49 | per month |
| 2 Blue Connect GO monthly | $12.99 | per month |
| 1 Blue Connect yearly | $24.49 | per year |
| 4 Blue Connect GO monthly | $25.49 | per month |
| 5 Blue Connect GO monthly | $31.99 | per month |
| 1 Blue Connect GO yearly | $45.99 | per year |
| Platinum | $59.99 | per year |
| 2 Blue Connect GO yearly | $90.99 | per year |
| 3 Blue Connect GO yearly | $134.99 | per year |

**What reviewers like**

- 🚀 Precise water measurements
- 👍 Easy to use
- 💰 Reduces chemical costs
- 🔍 Provides detailed water quality insights
- 🔧 Helpful maintenance recommendations

**What reviewers complain about**

- 💰 Expensive device and subscription
- 🔌 Battery life issues
- 🔍 Inaccurate water readings
- 🐛 Connectivity problems
- 🤖 Unreliable automatic measurements

**Reported bugs**

- App crashes after recent updates
- Bluetooth connectivity issues
- Sigfox network stopped working
- Language settings reset unexpectedly
- Inconsistent water parameter readings

**Requested features**

- Add Alkalinity and Stabilizer measurements
- Allow manual data entry and editing
- Provide water chemistry history graphs
- Integrate with smart home platforms
- Offer more customization options


### U

[App page](https://appshunter.io/ios/app/u-spa/id1585126987)

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

**In-app purchases:** none


## Frequently asked questions

### Is Blueriiot free?

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

### Is U free?

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

### Do Blueriiot or U have ads?

Neither Blueriiot nor U shows ads.

### Which is updated more often, Blueriiot or U?

Blueriiot ships an update every 5 weeks, and U every 3 days. Most recently, Blueriiot was updated on October 29, 2026 and U on October 19, 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.*