# Level3D vs U

The clearest difference is update cadence: U at every 2 months against Level3D's every 7 months. U also leads on iOS requirement (14 vs 18.0). On price, rating, ratings volume 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 — 5.0 for Level3D against 5.0 for U. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Level3D ships an update every 7 months, U every 2 months. The most recent releases landed on September 7, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | Level3D | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/level3d/id1296669896/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/u-level/id1448340593/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 38 MB | 18 MB |
| Requires iOS | 18.0 | **14** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [J2C Engineering LLC](https://appshunter.io/developer/1200273616) | [Mike East](https://appshunter.io/developer/1459101077) |

## What reviewers say

### Level3D

[App page](https://appshunter.io/ios/app/level3d/id1296669896)

This utility app offers a suite of leveling tools, including bubble level, roof pitch, and grade measurement. It leverages an orientation device for advanced functions like dual bubble levels and beam distortion.

**Highlights:** Bubble Level, Roof Pitch, Grade Measurement, Cross Grade, Range of Motion Tracking, Dual Bubble Levels, Beam Distortion

**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 Level3D free?

Level3D 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, Level3D or U?

Level3D and U are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Level3D or U have ads?

Neither Level3D nor U shows ads.

### Which is updated more often, Level3D or U?

Level3D ships an update every 7 months, and U every 2 months. Most recently, Level3D was updated on September 7, 2026 and U on July 5, 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.*