GreenMAX DRC vs TrueFill
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GreenMAX DRC
Design and specify a secure, scalable distributed lighting control system for commercial projects. This app supports various lighting types and offers encrypted communication for enhanced security. It simplifies the entire process from design to operation.
- Design distributed lighting control systems
- Specify commercial lighting projects
- Support for 0-10V, DMX, and DALI lighting
- Fully encrypted for security
- Scalable for any application
- Wireless Ethernet configuration
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Design and specify a secure, simple and scalable distributed lighting control system with GreenMAX® DRC. Control virtually any type of commercial lighting from 0-10V to DMX and DALI with one system. Confidently design and specify all your commercial lighting projects with a lighting control system that’s fully encrypted for security and secure communication. Engineered for easy specification and layout to easy installation and operation, GreenMAX DRC simplifies scalability for virtually any application. GreenMAX DRC uses LumaCAN high-performance networking for communication between devices and wireless Ethernet for configuration and backbone connectivity. All fully configurable from the GreenMAX DRC App. This will change the way you design lighting control projects.
TrueFill
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TrueFill is a conduit-fill calculator built for electricians who want a clean answer and the math behind it - not just a number. Pick a raceway type, add your phase, neutral, ground, and spare conductors, and TrueFill returns the smallest passing trade size, the fill percentage against the allowable fill rule, the remaining area, and a full math trace you can check line by line. WHAT YOU GET - Smallest passing conduit and fill headroom in seconds - Conduit candidates compared, with pass/fail and room to spare - Show Math: conductor-area breakdown, assumptions, and source references - Save drafts and reopen the exact revision later - Quick-setup templates for 3-phase feeders, 1-phase branches, and control/spare runs BUILT FOR THE FIELD Dark, mobile-first, and fast to enter. Every result shows its inputs and assumptions so you can verify before you pull wire. This version ships with demo code data only. Results are clearly labeled as a demo/estimating aid and are intentionally blocked from final, export-ready, BOM, pricing, and bid-total use. Always verify against the NEC and your project documents. TrueFill is a calculation aid for qualified electrical professionals and is not a substitute for the NEC, a licensed engineer, or a code-compliance determination. From 509 Electric.
Screenshots
Verdict
The clearest difference is update cadence: TrueFill at every 3 weeks against GreenMAX DRC's every 2 months. GreenMAX DRC's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.0). On price, ads and in-app purchases 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.
GreenMAX DRC ships an update every 2 months, TrueFill every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | GreenMAX DRC | TrueFill |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (8 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 79 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Leviton Manufacturing Co. Inc. | Nicole Nalley |
In-app purchases
GreenMAX DRC
No in-app purchases
TrueFill
No in-app purchases
Questions
Is GreenMAX DRC free?
Is TrueFill free?
Do GreenMAX DRC or TrueFill have ads?
Which is updated more often, GreenMAX DRC or TrueFill?
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