Comparison

Fault Current Calculator (PFC) vs Level · Baro

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

Head to head
About

Fault Current Calculator (PFC)

This app calculates prospective fault current (PFC) in kA and Amps for single and three-phase circuits. It allows users to input any two values (voltage, earth loop impedance, or PFC) to determine the third, aiding in selecting appropriate circuit breaker ratings.

Highlights
  • Calculate PFC from Zs/Ze and Voltage
  • Calculate Zs/Ze from Voltage and PFC
  • Calculate Voltage from PFC and Zs/Ze
  • PFC calculation in kA and Amps
  • Single and three-phase support
  • Input any two values to calculate the third
Features
Read full description

Fault Current Calculator for iPhone and iPad is a fast, free tool for electricians, contractors, and engineers. Calculate Prospective Fault Current (PFC), Prospective Short-Circuit Current (PSCC), and Prospective Earth Fault Current (PEFC). Enter any two known values - voltage, loop impedance (Zs/Ze), or fault current - and the app instantly calculates the third. KEY FEATURES: PSCC and PEFC calculations: Calculate prospective short-circuit current for L-N or L-L faults and prospective earth fault current for L-E faults. Single-phase and three-phase support: Perform fault-current calculations for both system types. Automatic calculations: Enter any two known values to auto calculate the third. Loop-impedance calculator: Calculate Zs or Ze from voltage and prospective fault current. Formula display: See the formula used for each calculation so you can understand and verify the result. Works offline: Use the app in roof spaces, basements, plant rooms, and other locations without a signal. Dark mode and light mode: Maintain a clear display in different site conditions. 16 languages: Fully translated for electricians worldwide (af, ar, de, es, en, fr, hi, id, it, ja, ko, nl, pl, pt, ru, zh). Fast and free: A clean interface designed to deliver results without unnecessary steps. DEFINITIONS: AIC (Ampere Interrupting Capacity), often written as kAIC for kilo-Amperes, is a specific rating for protective devices that open a circuit, such as circuit breakers and fuses. SCCR (Short-Circuit Current Rating) is the maximum fault current that a complete piece of equipment or electrical assembly (like an industrial control panel, switchboard, or HVAC unit) can safely withstand without causing a hazard. Electrical calculations should be independently verified before safety-critical work. Ensure the calculated prospective fault current does not exceed the protective device's rated breaking capacity. For additional tools, upgrade to Electrical Tools & Reference, which includes calculators for kVA, Max Zs, cable sizing, and more. Pro Certs Software - trusted by electricians since 2011.

About

Level · Baro

Features
Read full description

■ The tools you reach for first. Level is a dedicated, oversized, accessible level — a big bubble and a huge degree number you can read at arm's length. iPhone has a level, but it's buried inside the Measure app; Level launches straight to the tool. No internet, no account, no ads, no tracking. Turn on airplane mode and it still works. That's the whole point. Open it and you're leveling — instantly, no menus. No subscription. ------------------------------- ● Two tools in one ------------------------------- • Lay the phone flat for a true bubble level — a single glow tells you when it's dead level. • Stand it on an edge for an angle finder / inclinometer — pitch and roll, 0 to 90°. • A huge degree readout you can read across the room. • Tap "Set zero" to calibrate against any surface — countertops are rarely perfect. ------------------------------- ● Private and offline by design ------------------------------- • Reads only the accelerometer. No microphone, no camera, no network, nothing to upload. Privacy label: Data Not Collected. • Zero network calls after install — provable in airplane mode. • No analytics, no ads, no account. ------------------------------- ● Built to be used by anyone ------------------------------- • Oversized readout for low vision · 64 × 64 pt touch targets · AMOLED black · Azure accent · WCAG-AAA contrast • English · Korean · Japanese · German · French · Simplified Chinese ------------------------------- ● No subscription, no ads ------------------------------- No subscription. No ads. No account. Level joins Magnifier and the rest of Baro — lightweight tools that respect your data. "The tools you reach for first."

Screenshots

Fault Current Calculator (PFC)4 screens
Level · Baro4 screens

Verdict

The call

The clearest difference is ads: Level · Baro at none against Fault Current Calculator (PFC)'s shown. Level · Baro also leads on update cadence (every 4 days vs every 14 months) and iOS requirement (13.0 vs 15.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Fault Current Calculator (PFC) ships an update every 14 months, Level · Baro every 4 days. The most recent releases landed on August 14, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
Fault Current Calculator (PFC) versus Level · Baro: the parameters behind the verdict, then further details
ParameterFault Current Calculator (PFC)Level · Baro
PriceFreeFree
Rating1.0 (2 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings2 — better—
Update frequencyEvery 14 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size10 MB19 MB
Age rating4+4+
DeveloperPro Certs Software LtdEuiseok Kim

In-app purchases

None

Fault Current Calculator (PFC)

No in-app purchases

None

Level · Baro

No in-app purchases

Questions

Is Fault Current Calculator (PFC) free?
Fault Current Calculator (PFC) is free to download, with no in-app purchases.
Is Level · Baro free?
Level · Baro is free to download, with no in-app purchases.
Do Fault Current Calculator (PFC) or Level · Baro have ads?
Fault Current Calculator (PFC) shows ads; Level · Baro does not.
Which is updated more often, Fault Current Calculator (PFC) or Level · Baro?
Fault Current Calculator (PFC) ships an update every 14 months, and Level · Baro every 4 days. Most recently, Fault Current Calculator (PFC) was updated on August 14, 2026 and Level · Baro on September 14, 2026.

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