Ohmly vs BaseCalc Electric Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ohmly
Read full descriptionHide full description
Your electrical toolkit, redesigned for speed. 26 pro tools, one clean app. Ohmly is the modern electrical calculator for electricians, students, and engineers. Solve VIRP calculations, decode resistor and SMD codes, check voltage drop, size conductors, design circuits, and keep your work organized—without ads. 26 PRO TOOLS • Ohm's law, resistor color code, SMD resistor code • Series/parallel resistance, voltage divider, LED resistor • Reactance, resonance, AC impedance, power factor • RC/RL/LC filters, decibels, op-amp gain, 555 timer • Voltage drop, wire gauge/AWG, three-phase power • Motor FLA, conduit fill, short-circuit current • Transformer ratio, LM317 regulator • Capacitor code, inductor color code, PCB trace width • Heat sink thermal resistance and battery life WHY OHMLY • Clean light and dark modes with no ads • Shared display metrics across every tool • Save, label, and search calculations • Export multi-calculation PDF reports • Home Screen, Lock Screen, and StandBy widgets • Full Apple Watch companion Unlock Pro with a lifetime purchase or a low monthly plan. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
- 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
Read full descriptionHide 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. 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
Verdict
The clearest difference is in-app purchases: Ohmly at none against BaseCalc Electric Calculator's 3. Ohmly also leads on update cadence (every 3 weeks vs every 2 months). BaseCalc Electric Calculator's advantage is iOS requirement (16.4 vs 26.0). On price, 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
Both are free to download. BaseCalc Electric Calculator sells 3 in-app purchases, starting at $7.00 per month. Ohmly asks for nothing beyond the download.
Ohmly ships an update every 3 weeks, BaseCalc Electric Calculator every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | Ohmly | BaseCalc Electric Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 7 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Adam Wilkie | BASEMAPPED LLC |
In-app purchases
Ohmly
No in-app purchases
BaseCalc Electric Calculator
- Electric Pro Monthly$7.001 Month
- Electric Pro Yearly$50.001 Year
- Lifetime Pro$16.99
Questions
Is Ohmly free?
Is BaseCalc Electric Calculator free?
Do Ohmly or BaseCalc Electric Calculator have ads?
Which is updated more often, Ohmly or BaseCalc Electric Calculator?
Other comparisons















