# ALLIANCE bt vs U

The clearest difference is rating: U at 5.0 against ALLIANCE bt's 2.1. ALLIANCE bt's advantage is ratings volume (79 vs 1) and iOS requirement (9.0 vs 14). 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.

U holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: ALLIANCE bt has 79 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 16, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ALLIANCE bt | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (79 ratings)](https://appshunter.io/ios/app/alliance-bt/id1318574131/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/u-level/id1448340593/reviews)** |
| Number of ratings | **79** | 1 |
| Positive reviews | 9.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 52 MB | 18 MB |
| Requires iOS | **9.0** | 14 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [凯 陈](https://appshunter.io/developer/1631731460) | [Mike East](https://appshunter.io/developer/1459101077) |

## What reviewers say

### ALLIANCE bt

[App page](https://appshunter.io/ios/app/alliance-bt/id1318574131)

Control smart lighting with features like dimming, grouping, and tunable white options. Create custom scenes and default colors for personalized ambiance. Securely manage your lamps within easy-to-use networks.

**Highlights:** Dimming and grouping, Tunable white (2700K-4000K), RGB color selection, Custom scene creation, Custom default colors, Secured network management

**Features:** macOS Compatibility

**In-app purchases:** none


### U

[App page](https://appshunter.io/ios/app/u-level/id1448340593)

This professional tool allows construction professionals to precisely measure 3D terrain and hardscape elements. It captures X, Y, and Z coordinates, calculates slope percentages, and displays elevation above sea level. Users can save, email, or upload survey data directly into CAD software for accurate job bidding.

**Highlights:** 3D X,Y,Z measurement plotting, Save, email, and upload survey data, Direct CAD integration, Calculate % of slope, Feet above sea level elevation, Photos with data, Compass functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ALLIANCE bt free?

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

### Is U free?

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

### Which has better reviews, ALLIANCE bt or U?

U is rated higher. ALLIANCE bt averages 2.1 out of 5 from 79 ratings, while U averages 5.0 from 1 ratings.

### Do ALLIANCE bt or U have ads?

Neither ALLIANCE bt nor U shows ads.

### Which is updated more often, ALLIANCE bt or U?

ALLIANCE bt ships an update every 2 months, and U every 2 months. Most recently, ALLIANCE bt was updated on October 16, 2026 and U on September 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.*