Comparison

Span Installer vs Electrical Calculator

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

Head to head
About

Span Installer

This app streamlines the installation and servicing of new and existing SPAN panels. It offers enhanced navigation, an improved breaker labeling process, and integrated troubleshooting support. Users can also confirm communications with battery systems and program setpoints for energy management.

Highlights
  • Faster new SPAN Panel commissioning
  • Simplified user navigation
  • Improved breaker labeling
  • Integrated troubleshooting and support
  • Confirm hardware communications
  • Program setpoints with SPAN PowerUp
Read full description

The new and improved SPAN Installer App supports the seamless installation of new SPAN panels. The SPAN Installer App also allows for seamless service calls of existing SPAN Panel installations. - Set up and commission a new SPAN Panel faster than ever before - Enhanced and simplified user navigation and design - New and Improved breaker labelling process making it even easier to install SPAN - Seamless troubleshooting and support integrated into the app - Confirm communications with battery systems and other hardware like SPAN Drive - Program setpoints to help customers avoid service upgrades with SPAN PowerUpTM Shift to smarter, cleaner energy with SPAN and ensure quality installations for your customers. **You must be a SPAN Authorized Installer to login to the SPAN Installer App.**

About

Electrical Calculator

Features
Read full description

Filling out a panel schedule and need to check if total connected load passes the NEC 80% continuous load rule? Add your circuits, see kW totals, and get an instant panel utilization percentage — before the inspector shows up. Add circuits with name, voltage, phase, and amperage. The app calculates each circuit's watt load, tracks total connected load, and checks the 80% continuous load rule against your panel rating. WHAT IT CALCULATES: - Total connected load in W and kW - Per-circuit watt load from volts, amps, and phase - Panel utilization percentage with color-coded status - Total amperage at your panel voltage - Overload warning when utilization passes 80% VOLTAGE CONFIGURATIONS: - 120V, 208V, 240V, 277V, 480V - Single phase and three phase KEY FEATURES: - Editable panel schedule with swipe-to-delete and Clear All - NEC 80% continuous load rule check against your main breaker - Enter any main breaker amperage and panel voltage - Watt totals per circuit, W/kW total for the panel - Works completely offline Built for licensed electricians, electrical engineers, and building inspectors.

Screenshots

Span Installer4 screens
Electrical Calculator2 screens

Verdict

The call

The clearest difference is price: Span Installer at Free against Electrical Calculator's $4.99. Span Installer also leads on update cadence (fortnightly vs every 2 months). On ads, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Span Installer is free to download; Electrical Calculator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Span Installer ships an update fortnightly, Electrical Calculator every 2 months. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
Span Installer versus Electrical Calculator: the parameters behind the verdict, then further details
ParameterSpan InstallerElectrical Calculator
PriceFree — better$4.99
Rating3.3 (15 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings15 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.617.0 — better
Further details — not scored
Size106 MB1 MB
Age rating4+4+
DeveloperSpan.io, IncShanghai Sheyuan Network Technology Co., Ltd.

In-app purchases

None

Span Installer

No in-app purchases

None

Electrical Calculator

No in-app purchases

Questions

Is Span Installer free?
Span Installer is free to download, with no in-app purchases.
Is Electrical Calculator free?
Electrical Calculator costs $4.99, with no in-app purchases.
Do Span Installer or Electrical Calculator have ads?
Neither Span Installer nor Electrical Calculator shows ads.
Which is updated more often, Span Installer or Electrical Calculator?
Span Installer ships an update fortnightly, and Electrical Calculator every 2 months. Most recently, Span Installer was updated on November 3, 2026 and Electrical Calculator on November 9, 2026.

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