---
title: "Eulumdat - Reviews, Revenue and Downloads in New Zealand | Apple App Store"
description: "Eulumdat is a professional photometric data viewer for lighting engineers, designers, and   architects. View and analyze LDT (EULUMDAT) and IES photometric files with beautiful interactive   diagrams."
---

# Eulumdat — New Zealand

![Eulumdat App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/ef/66/89/ef66891c-1908-1803-3467-ed0d10866996/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Holger Trahe](https://apptail.io/developer/holger-trahe-IHXc)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** eu.trahe.eulumdat
**Store:** Apple App Store
**Country:** New Zealand
**Version:** 1.0 (released 2025-12-08)
**Original Release:** 2025-12-08
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/nz/app/app/id6756174085)
**AppTail Page:** [https://apptail.io/app/eulumdat-rWDy/new-zealand](https://apptail.io/app/eulumdat-rWDy/new-zealand)

## Eulumdat Description
Eulumdat is a professional photometric data viewer for lighting engineers, designers, and
  architects. View and analyze LDT (EULUMDAT) and IES photometric files with beautiful interactive
  diagrams.

  Features:
  • Open and view LDT and IES photometric files
  • Multiple diagram types: Polar, Cartesian, Butterfly, Heatmap, BUG Rating, and LCS
  • Interactive 3D butterfly diagram visualization
  • Export diagrams to SVG
  • Convert between LDT and IES formats
  • Batch conversion support
  • Dark and light theme support
  • QuickLook preview integration (macOS)

  Perfect for:
  • Lighting designers reviewing luminaire data
  • Architects evaluating lighting fixtures
  • Engineers analyzing photometric distributions
  • Anyone working with lighting specification files

## Eulumdat Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a3/33/9a/a3339afe-321b-53e3-042e-46a673f5afdc/Simulator_Screenshot_-_iPhone_14_Plus_-_2025-12-06_at_17.53.16.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/28/3b/ab/283bab63-7309-998a-d007-30f304214b5d/Simulator_Screenshot_-_iPhone_14_Plus_-_2025-12-06_at_17.53.32.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e6/00/df/e600df91-4b3f-a043-0efd-628819779eb9/Simulator_Screenshot_-_iPhone_14_Plus_-_2025-12-06_at_17.53.42.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/76/12/e0/7612e0fd-4a8c-0ab2-226b-1d8bd23863cc/Simulator_Screenshot_-_iPhone_14_Plus_-_2025-12-06_at_17.53.54.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b5/45/0f/b5450f96-c2e2-e8cb-2cf9-0922f2c13a35/Simulator_Screenshot_-_iPhone_14_Plus_-_2025-12-06_at_17.54.04.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c0/2f/76/c02f7663-703d-8c11-6930-1f455fec90c3/Simulator_Screenshot_-_iPhone_14_Plus_-_2025-12-06_at_17.54.14.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e8/ad/6a/e8ad6a6e-1f13-46d0-8d86-393a7dd89cb0/Simulator_Screenshot_-_iPhone_14_Plus_-_2025-12-06_at_17.54.23.png/1284x2778.png)







## Eulumdat Available In
- [Australia](https://apptail.io/app/eulumdat-rWDy/australia)
- [Czechia](https://apptail.io/app/eulumdat-rWDy/czechia)
- [Lithuania](https://apptail.io/app/eulumdat-rWDy/lithuania)
- [New Zealand](https://apptail.io/app/eulumdat-rWDy/new-zealand)
- [United States](https://apptail.io/app/eulumdat-rWDy/united-states)

---

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