# Straightness

> Straightness (iPhone/iPad app by ACOEM Group.)

- Source: https://appshunter.io/ios/app/straightness/id6759055500 (this page in markdown: same URL + `.md`)
- Developer: [ACOEM Group](https://appshunter.io/developer/1495816959)
- Category: Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 59 MB
- Languages: English
- Released: 2026-02-26
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/straightness/id6759055500/reviews.md

## What is Straightness?

This companion app performs straightness measurements using the AT-400 Ultimate on typical applications such as guides. The app guides the user through the complete measurement and alignment process when using the Bluetooth® connected ACOEM M9 sensor. This offers extensive, easy-to-use straightness measurement capability. The PDF Report function provides fast on-site reporting capability by converting saved measurement reports into PDF files.

---- Note: This app works only with the ACOEM AT-400 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.


## Version history (last 2 releases)

### 1.0.1 — 2026-04-16

Minor bug fixes.

### 1.0.0 — 2026-02-27

No release notes.

## 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

## Related topics

[acoem group](https://appshunter.io/ios/topics/acoem-group) · [straightness](https://appshunter.io/ios/topics/straightness)

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*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 2026-05-17.*