# Flatness

> Companion app for rectangular flatness measurements using AT-400 and M9 sensor. (iPhone/iPad app by ACOEM Group.)

- Source: https://appshunter.io/ios/app/flatness/id6463624359 (this page in markdown: same URL + `.md`)
- Developer: [ACOEM Group](https://appshunter.io/developer/1495816959)
- Category: Productivity
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 61 MB
- Languages: English
- Released: 2023-09-06
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/flatness/id6463624359/reviews.md

## What is Flatness?

This is a companion app for performing rectangular flatness measurements, using the AT-400, on typical applications such as a motor and pump foundations. The app guides the user throughout the complete measurement and alignment process when using the Bluetooth® connected ACOEM M9 sensor. This offers an extensive easy to use flatness measurement capability. The PDF Report function provides a fast on-site reporting capability by converting saved measurement reports into PDF files.

---- Note: This app works only with the ACOEM AT-400 Ultimate with the M9 sensor ----

Key Features:
- Connected using Bluetooth®
- GuideU: Our patented icon-based and color-coded adaptive user interface
- New 3D views of the result
- Create an instant PDF-report

Visit the website www.acoem.com for more information on alignment in general, the ACOEM tools and support of the app.

## Key features

- Bluetooth connectivity
- Icon-based adaptive user interface
- 3D result views
- Instant PDF report generation
- Guided measurement process


## Frequently asked questions about Flatness

### What devices does Flatness work with?

Flatness is compatible with iPhone, iPad, and iPod devices. It requires the ACOEM AT-400 Ultimate with the M9 sensor for full functionality.

### How often is Flatness updated?

The latest version of Flatness is 1.1.2, last updated on April 8, 2026. While the last update date is in the future, this indicates ongoing development and support.

### Does Flatness have ads?

No, Flatness does not contain advertisements. It is a free application designed for professional use without interruptions.

### What is the user interface like in Flatness?

Flatness features GuideU, a patented icon-based and color-coded adaptive user interface. This design aims to make the measurement and alignment process intuitive and easy to follow.

### Can I create reports with Flatness?

Yes, Flatness offers an instant PDF-report function. This allows you to convert saved measurement reports into PDF files quickly for on-site reporting.

### What kind of measurements can Flatness perform?

Flatness is specifically designed for performing rectangular flatness measurements. It is ideal for typical applications such as motor and pump foundations.

### Is Flatness suitable for beginners?

The app guides users through the complete measurement and alignment process, and its adaptive user interface is designed for ease of use. However, it is intended for professional applications requiring specific hardware.

### Where can I find more information about Flatness?

For more information on alignment in general, ACOEM tools, and support for the app, you can visit the website www.acoem.com.

## Version history (last 3 releases)

### 1.1.2 — 2026-04-08

Minor bug fix.

### 1.1.1 — 2023-10-06

Battery status indicator bug fix.

### 1.1.0 — 2023-09-06

No release notes.

## Apps similar to Flatness

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [VibraTestPro-VibrationAnalyzer](https://appshunter.io/ios/app/vibratestpro-vibrationanalyzer/id989870316) | — | $699.99 | Productivity |
| [MEAX Level](https://appshunter.io/ios/app/meax-level/id1010671167) | — | Free | Productivity |
| [MEAX Pen](https://appshunter.io/ios/app/meax-pen/id1226340941) | 1.0 (1) | Free | Productivity |
| [MEAX Coax](https://appshunter.io/ios/app/meax-coax/id1050624307) | — | Free | Productivity |
| [Nanoprecise DIY](https://appshunter.io/ios/app/nanoprecise-diy/id6463207713) | 5.0 (2) | Free | Productivity |
| [TD UC System Interface](https://appshunter.io/ios/app/td-uc-system-interface/id1599254238) | 4.0 (1) | Free | Productivity |

## More apps by ACOEM Group

- [01dB Connect](https://appshunter.io/ios/app/01db-connect/id1119115373)
- [OneProd Bearing Defender](https://appshunter.io/ios/app/oneprod-bearing-defender/id1273965192)
- [Machine Defender](https://appshunter.io/ios/app/machine-defender/id1496754747)
- [Horizontal Shaft Alignment](https://appshunter.io/ios/app/horizontal-shaft-alignment/id1499322319)
- [Vertical Shaft Alignment](https://appshunter.io/ios/app/vertical-shaft-alignment/id1499478849)
- [Pre-Alignment](https://appshunter.io/ios/app/pre-alignment/id1499479273)

All apps by ACOEM Group: https://appshunter.io/developer/1495816959

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*