Ohms Law is a utility calculator for power, current, resistance, and voltage on iOS and Android.
Product velocity
Maintenance
Daily rank 🇺🇸
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Utilities
Sentiment
4.2
120 reviews
Nemesis
Conduit Bending
The App DNA
What makes this app unique?
Users hire this app for quick, on-site electrical calculations, but the lack of regulatory data forces professionals to switch to more comprehensive toolkits for final project verification.
For Professional electricians and electrical contractors requiring on-site calculation and regulatory reference tools.
What does it look like?
Key features
Calculates Voltage, Current, Resistance, and Power by requiring input of any two variables
Collection of electrical tools and reference apps available on iOS, Android, Windows, and Mac
Links to professional certification software based on BS 7671, BS 7909, BS 5839, and BS 5266
How much does it cost?
Ad-supported model monetizes high-frequency utility usage among free-tier electricians.
Velocity
Maintenance developmentperformanceUX improvementsShow more...
The app has shipped only two releases in the last 10 months, resulting in a maintenance-level cadence of approximately 0.05 releases per week. Development is currently focused on minor technical updates, including platform-specific compatibility for Android 35 and general performance optimizations. There is no evidence of new feature development or live operations. The release history indicates a stable but minimal maintenance cycle.
Who built it?
Pro Certs Software
13+ apps tracked · Utilities
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Cable CalcUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Ohms Law
How's the Utilities market?
Ohms Law maintains a 4.2-star rating across 120 total ratings, serving as a lightweight utility in a category dominated by code-compliant toolkits. The lack of recent feature updates relative to competitors suggests a stagnant market position.
Read the market outlookThe rivals identified
By xNeat.com
This app captures the same professional electrician demographic by solving complex field math problems that often accompany basic Ohm's Law calculations.
- Integrates NEC reference data, providing regulatory compliance that simple calculators cannot offer to professional contractors.
- Features a specialized conduit calculation engine that addresses specific physical installation challenges beyond basic electrical theory.
- Maintains a high release cadence, signaling a robust development cycle that keeps the tool relevant for professionals.
Electrical Engineering ToolkitContender
Mike Holt's Electrical ToolboxContender
WAGOContender
kVA (Single and Three Phase)ContenderUnlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Ohms Law
Where is it heading?
Users report: The utility-app market is consolidating around professional-grade toolkits that provide regulatory compliance, leaving single-function calculators like Ohms Law exposed. Without a pivot to include code-based reference data, the app will likely see continued churn among professional users who require more than basic Ohm's Law math.
- Competitors bundling code-compliance tools drain the professional user segment, which forces the subject app into a lower-value hobbyist niche.
- Recent updates focused on maintenance rather than feature expansion, signaling a lack of active investment in the core utility.
The SWOT
- Cross-platform availability ensures utility across diverse hardware environments
- Integration with professional certification software drives B2B lead generation
- Integration of offline regulatory reference tables would capture professional-grade market share
- Wearable companion apps could provide quick-calc utility on-site
Next best moves
Integrate offline regulatory reference tables because professional users churn to code-compliant toolkits → increase professional retention
+ 1 more prioritized moveThe counter-intuitive read
The app's simplicity is its primary vulnerability…
Read the full takeFeature gaps
NEC/BS-standard reference data (available in Conduit Bending but absent here) +1
Since the last report: The analysis shifted focus from internal ad-monetization friction to the external threat of code-compliant professional toolkits.
Bottom line
Ohms Law holds its ground through a simple, focused interface, but the lack of regulatory data forces professional users to switch to more robust toolkits, so revenue growth hinges on integrating code-compliance references to lock in the contractor segment.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeReport last updated