---
title: "Alignment Viewer — App Overview"
url: https://marlvel.ai/intel-report/navigation/com-nrgsurveys-alignmentviewer
category: Navigation
developer: NRG Surveys Ltd
platforms: ios
rating: 3.7 (7 ratings)
pricing: paid
report_level: overview
generated: 2026-04-24
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers robust technical functionality for alignment management, recent user reports indicate significant stability issues and frequent crashes.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Navigation |
| Rating | 3.7 ★ (7) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 3.55 |
| Developer | NRG Surveys Ltd |

<!-- SECTION: Summary -->
## What is Alignment Viewer?

NRG Alignment Viewer is a civil engineering utility designed for highway and railway construction and maintenance. It enables the visualization of geometric alignments, cross-sections, and georeferenced photos, while supporting complex coordinate transformations between WGS84/ETRS89 and Cartesian systems.

<!-- SECTION: Key Features -->
## Key Features

- **Coordinate Transformation**: Converts between Geodetic WGS84/ETRS89 coordinates and Cartesian Easting/Northing using built-in or custom transformation files.
- **Geometric Alignment Support**: Visualizes alignments including curves, spirals, clothoids, parabolas, and straights via NRG (.nst) or LandXML (.xml) file imports.
- **Chainage and Offset Tools**: Provides specialized support for alignment-based positioning using chainage, station, meterage, and offset measurements.
- **Watermarked Documentation**: Allows users to generate photos watermarked with specific chainage/station and offset data for site reporting.

<!-- SECTION: Target Audience -->
## Who is it for?

Civil engineers and surveyors working on highway and railway infrastructure projects.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/alignment-viewer/id1334623383?uo=2)
- [Full Intelligence Report](https://marlvel.ai/intel-report/navigation/com-nrgsurveys-alignmentviewer)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/navigation/com-nrgsurveys-alignmentviewer).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*