LEDesign vs ELM52
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LEDesign
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LEDesign® LED calculation tool - find the right LED driver We designed the LEDesign App to be the easiest calculation tool for LED lighting specialists. LEDesign finds you the best Helvar LED driver to match your Helvar LED modules or even custom modules. The app updates automatically, but you can use it offline too. LEDesign shows the key electrical and photometrical parameters for the selected combination. It indicates how close to the nominal values the combination is operating, and helps to find the optimal solutions for your LED application. The calculator will also display relevant product information and shows how to find the optimal LED driver for each load. Browser version: http://ledesign.helvar.com . More information: www.helvar.com All values, calculated by LEDesign, are estimations of typical performance and may therefore vary from the actual values.
ELM52
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ELM52 enables simple, fast and standard-compliant wireless monitoring of dedicated self-contained emergency luminaires using Bluetooth® Low Energy mesh network technology. Each luminaire equipped with a corresponding wireless module can be configured with the app and permanently monitored within the mesh network. The app also enables the central display of the operating status of the luminaires in accordance with the requirements of DIN VDE V 0108-100:2023-06. Other useful functions include the manual or automatic execution of tests as well as the retrieval of all test results and their documentation in a test logbook. The app also makes it easy to save and exchange system data and the test logbook.
Screenshots
Verdict
The clearest difference is update cadence: ELM52 at monthly against LEDesign's every 8 months. LEDesign's advantage is iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
LEDesign ships an update every 8 months, ELM52 monthly. The most recent releases landed on September 14, 2026 and September 4, 2026 respectively.
| Parameter | LEDesign | ELM52 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 15 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Helvar Components Oy Ab | Sander Elektronik AG |
In-app purchases
LEDesign
No in-app purchases
ELM52
No in-app purchases









