Comparison

Phase Calc vs BaseCalc Electric Calculator

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

Head to head
About

Phase Calc

This advanced engineering app performs complex electrical calculations for three-phase power systems. It offers tools for students, technicians, and engineers to analyze unbalanced systems, perform sequence transformations, and access reference libraries. Results can be easily exported for documentation and sharing.

Highlights
  • Symmetrical component analysis
  • Three-phase power system calculations
  • Phase-to-sequence and sequence-to-phase transformations
  • Polar and rectangular input support
  • Specialized calculators and reference libraries
  • Exportable results for documentation
Features
Read full description

Phase Calc for iOS is an advanced engineering app for most electrical designs, expecially symmetrical component analysis and three-phase power system calculations. Built for students, teachers, technicians, and engineers, it combines a polished mobile experience with a powerful technical workflow for fast, accurate analysis of unbalanced three-phase systems in the field, lab, or classroom. The app performs both phase-to-sequence and sequence-to-phase transformations, with support for inputs in polar and rectangular form. It quickly resolves three unbalanced phase quantities into their positive-, negative-, and zero-sequence components, making it a practical tool for protection studies, fault analysis, system modeling, relay validation, and coursework. More than a single-purpose calculator, Phase Calc is packed with specialized calculators, technical reference libraries, and built-in formulas to support everyday power systems work. Whether you are checking values, reviewing theory, or working through engineering problems more efficiently, the app puts essential tools in one place. Results can be exported instantly, including vector data for plotting and graphical analysis, as well as technical report exports for documentation, review, and sharing. With powerful capabilities in a streamlined interface, Phase Calc delivers a complete mobile toolkit for three-phase analysis on iPhone and iPad.

About

BaseCalc Electric Calculator

This app provides electricians with essential calculation tools for job-site field math, including voltage drop, wire sizing, and conduit fill. It offers a comprehensive suite of 18 calculators, saves calculation history, and allows for the creation and export of job worksheets.

Highlights
  • 18 essential electrical calculators
  • NEC-aware calculations
  • Voltage drop and wire sizing
  • Conduit and box fill calculations
  • Saved calculation history
  • Job worksheets and PDF export
  • Offline functionality
Features
Read full description

BaseCalc Electric Calculator is an NEC-aware electrician calculator for job-site field math, worksheets, materials, and saved calculation history. Run voltage drop, wire size, conduit fill, service load, breaker, grounding, EV charger, generator, and other electrical calculator checks on site, then save the result for the job. 18 CALCULATORS FOR DAILY FIELD WORK • Ohm's Law — solve voltage, current, resistance, and power from any two known values. • Voltage Drop — single-phase or three-phase, copper or aluminum, with a 3% target check. • Wire Size — minimum conductor sizing based on NEC 310.16 ampacity with temperature and conductor-count adjustment. • Conduit Fill — fill percentage for EMT, PVC, RMC, IMC, FMC, and LFNC. • Conduit Size — auto-recommend the first raceway size that passes fill. • Box Fill — required box volume per NEC 314.16. • Conduit Bend — fast offset bend mark calculations. • Bend Layout — rolling offsets, 3-point saddles, and 4-point saddle layout guidance. • Service Load — dwelling service/load sizing guide based on NEC 220 concepts. • Breaker + Wire — continuous-load OCPD and conductor guidance. • Grounding — EGC and GEC starting-point sizing. • Motor Circuit — FLC, conductor ampacity, overload, and short-circuit/ground-fault guides. • Pull Box — straight, angle, and U-pull box dimension guide. • Derating — temperature correction and current-carrying conductor adjustment. • EV Charger — branch circuit and service-load check. • Generator — backup generator kW and output-current target. • Transformer — kVA to full-load amperage. • Power — kW, kVA, current, voltage, and power factor relationships. EVERY RESULT IS EXPLAINED • Clear pass/fail or sizing messages. • The governing limit, final answer, and calculation breakdown. • Saved local history so you keep a job-site record. JOB RECORDS, MATERIALS, AND WORKSHEETS • Save job contacts with site notes. • Build job worksheets with scope, quantities, and site notes. • Export worksheet PDFs for internal handoff or customer context. • Plan common pull-list items before rough-in, trim, and closeout. • Send the finished billing handoff to SpeakSheet for the final invoice. DEVICE-LOCAL FOR THE FIELD • Works offline by default. • No BaseCalc account or cloud sync. • Job contact, worksheet, setting, and calculation data is stored in local app storage, protected by your device security. • There is no BaseCalc cloud option. • Device backups, when available on your operating system, remain under your device-account settings. • Dark and light themes with a high-contrast job-site interface. BaseCalc Electric is a professional reference tool. Always verify against the current National Electrical Code and your local amendments. The authority having jurisdiction has the final say. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Phase Calc4 screens
BaseCalc Electric Calculator4 screens

Verdict

The call

The clearest difference is price: BaseCalc Electric Calculator at Free against Phase Calc's $1.99. Phase Calc's advantage is in-app purchases (none vs 2) and ratings volume (4 vs 1). On rating, update cadence, ads 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

BaseCalc Electric Calculator is free to download; Phase Calc costs $1.99 up front. BaseCalc Electric Calculator sells 2 in-app purchases, starting at $7.00 per month. Phase Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Phase Calc against 5.0 for BaseCalc Electric Calculator. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Phase Calc ships an update every 6 weeks, BaseCalc Electric Calculator monthly. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
Phase Calc versus BaseCalc Electric Calculator: the parameters behind the verdict, then further details
ParameterPhase CalcBaseCalc Electric Calculator
Price$1.99Free — better
Rating5.0 (4 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size13 MB53 MB
Age rating4+4+
DeveloperDonnie HermanBASEMAPPED LLC

Customer experience

Phase Calc

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

BaseCalc Electric Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Phase Calc

No in-app purchases

2 purchases

BaseCalc Electric Calculator

Subscriptions2
  • Electric Pro Monthly$7.001 Month
  • Electric Pro Yearly$50.001 Year

Questions

Is Phase Calc free?
Phase Calc costs $1.99, with no in-app purchases.
Is BaseCalc Electric Calculator free?
BaseCalc Electric Calculator is free to download, with in-app purchases available.
Which has better reviews, Phase Calc or BaseCalc Electric Calculator?
Phase Calc and BaseCalc Electric Calculator are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do Phase Calc or BaseCalc Electric Calculator have ads?
Neither Phase Calc nor BaseCalc Electric Calculator shows ads.
Which is updated more often, Phase Calc or BaseCalc Electric Calculator?
Phase Calc ships an update every 6 weeks, and BaseCalc Electric Calculator monthly. Most recently, Phase Calc was updated on October 15, 2026 and BaseCalc Electric Calculator on October 5, 2026.

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