Comparison

Trustmark Refresh vs NEMA Guide

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Trustmark Refresh

Features
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The software is used to control lighting through the iPhone or iPad by connecting the corresponding WiFi. The software only support Trustmark series controller products. The software support 12 zone control,Each zone can set to one of five kinds lamp: DIM(W),CT1(NW+WW), CT2(NW+WW+CW),RGB and RGBW. Each zone have four scenes to save or load. For DIM,CT1 and CT2 lamp, the software only support static bright adjust. For RGB and RGBW lamp, the software support static color adjust and many dynamic color styles.the user even can make any color jump,strobe gradual or fade dynamic styles.

About

NEMA Guide

Features
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Use the NEMA Guide app to quickly identify and cross-reference NEMA plug and receptacle configurationsβ€”a must-have tool for electricians and electrical professionals on the job. Whether you're trying to identify an unknown plug or need to confirm the right receptacle for a specific application, this app streamlines the process. Simply search by NEMA number or filter by voltage, amperage, phase, poles, wires, and grounding type to view all matching results. With illustrations and detailed specs for each configuration, to save you time and avoid guesswork on-site. Features: - Search by NEMA configuration number. - Filter by voltage, amperage, phase, poles, wires, and grounding. - Instantly view matching plug and receptacle configurations. - Over 170 high-quality configuration illustrations. - Tap to view detailed specs for each configuration. - Cross-reference plugs and receptacles with ease. - Data is stored locally for quick use in the field or on the job-site.

Screenshots

Trustmark Refresh4 screens
NEMA Guide4 screens

Verdict

The call

The clearest difference is update cadence: NEMA Guide at every 2 days against Trustmark Refresh's every 3 weeks. Trustmark Refresh's advantage is iOS requirement (7.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Trustmark Refresh ships an update every 3 weeks, NEMA Guide every 2 days. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

Scorecard2 real differences Β· 4 level
Trustmark Refresh versus NEMA Guide: the parameters behind the verdict, then further details
ParameterTrustmark RefreshNEMA Guide
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS7.0 β€” better17.6
Further details β€” not scored
Size3 MB23 MB
Age rating17+4+
DeveloperEnvironmental LightsRed Zepp LLC

In-app purchases

None

Trustmark Refresh

No in-app purchases

None

NEMA Guide

No in-app purchases

Questions

Is Trustmark Refresh free?
Trustmark Refresh is free to download, with no in-app purchases.
Is NEMA Guide free?
NEMA Guide is free to download, with no in-app purchases.
Do Trustmark Refresh or NEMA Guide have ads?
Neither Trustmark Refresh nor NEMA Guide shows ads.
Which is updated more often, Trustmark Refresh or NEMA Guide?
Trustmark Refresh ships an update every 3 weeks, and NEMA Guide every 2 days. Most recently, Trustmark Refresh was updated on October 3, 2026 and NEMA Guide on October 1, 2026.

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