ROE Calculator vs LedPort
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ROE Calculator
This application provides essential technical calculations for LED screens, including ballast, pixel, and power requirement analysis. It's designed to be the ultimate tool for LED technicians during on-site work and production preparation.
- Ballast calculation
- Pixel and resolution calculation
- Power requirement analysis
- Technical calculations for LED screens
- On-site and preparation tools
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ROE Visual is proud to announce the release of its groundbreaking ROE Calculator APP. This cutting-edge application is a complete upgrade of the previous ballast calculator and has added many new and exciting options to create essential technical calculations for your LED screens. With a comprehensive suite of tools that include ballast calculation, pixel and resolution calculation, power requirement analysis, and much more, the ROE Calculator APP will become the ultimate tool for LED technicians, whether on-site or in the preparation stages of production.
LedPort
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LedPort is a field tool built for technical teams installing LED screens. Enter the screen size and pixel pitch, and it returns every number the installation needs. WHAT IT CALCULATES - Resolution and total pixel count - Average and maximum power draw (kW and amps) - Total area and weight - Required panel and port count - Suggested processor model - Viewing distance and brightness range WIRING DIAGRAM Signal and power runs are generated automatically. Each port is colour coded so you can see which panels it carries, along with the number of Cat6 and C16 cables required. Not happy with the layout? Edit it by hand and assign panels to any run by tapping. PROJECT MANAGEMENT Save projects and reopen them later. Export all calculations and diagrams as a PDF. Whoever receives the PDF can open it in LedPort and restore the project. SUPPORTED CONFIGURATIONS Pixel pitch: 1.6 / 1.9 / 2.6 / 2.9 / 3.9 Panels: 50x50, 50x100 and custom sizes Indoor and outdoor Mixed panel runs Built for teams working with Novastar control systems. Turkish and English interface. No internet connection required. No data is collected; everything stays on your device.
Screenshots
Verdict
The clearest difference is update cadence: LedPort at daily against ROE Calculator's every 6 weeks. 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.
ROE Calculator ships an update every 6 weeks, LedPort daily. The most recent releases landed on October 10, 2026 and October 31, 2026 respectively.
| Parameter | ROE Calculator | LedPort |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | ROE Visual Co., Ltd | ORHAN SUT |
In-app purchases
ROE Calculator
No in-app purchases
LedPort
No in-app purchases
Questions
Is ROE Calculator free?
Is LedPort free?
Do ROE Calculator or LedPort have ads?
Which is updated more often, ROE Calculator or LedPort?
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