Comparison

Ohmulator vs Watts Amps Volts Calculator

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

Head to head
About

Ohmulator

This electric circuit calculator simplifies Ohm's Law calculations. It allows users to input two known variables (current, resistance, voltage, or power) and automatically computes the unknown values. The app also supports on-the-fly unit adjustments, eliminating the need for manual conversions.

Highlights
  • Ohm's Law calculations
  • Calculate unknown variables
  • Adjustable unit types
  • Total resistance calculator
  • Supports Voltage, Current, Resistance, Power
Features
Read full description

Makes Ohm's Law simple! Ohmulator is a simple, yet robust, electric circuit calculator that enables you to quickly find the unknown variables of a circuit. Ohmulator allows you to easily adjust unit types on the fly (eg. milli Amps, Amps, kilo Amps), which means no prior conversion! Enter two known variables (from: I = Current, R = Resistance, V = Voltage, P = Power), set preferred units, then Ohmulator will calculate and return the previously unknown values. Also an effective (total) resistance calculator. What two App Store reviewers had to say about Ohmulator: "Great. Does what it says. Very good app. Stylish design." 5 Stars - Jamie1990jamie "Awesome app. It simply works. A must have for the radioamateur or electronic nerd. Nice to have the watt law as well." 5 Stars - Per67 Also available for macOS on the Mac App Store.

About

Watts Amps Volts Calculator

This tool simplifies electrical calculations for power, current, and voltage. It's designed for professionals, hobbyists, and students to quickly and accurately manage electrical projects.

Highlights
  • Power (Watts) Calculation
  • Current (Amps) Calculation
  • Voltage (Volts) Calculation
  • Intuitive User Interface
  • Efficient and Time-Saving
  • Accurate Results
Features
Read full description

The "Watts Amps Volts Calculator" app is a handy tool for electrical professionals, hobbyists, and anyone dealing with electrical circuits. This user-friendly app provides quick and accurate calculations for power, current, and voltage, allowing users to efficiently manage their electrical projects. Whether you're an electrician, engineer, or DIY enthusiast, this app simplifies complex electrical calculations. Key Features: Power (Watts) Calculation: Easily calculate power (watts) by entering the values for current (amps) and voltage (volts). This feature is crucial for determining the energy consumption or generation of electrical devices. Current (Amps) Calculation: Determine the current (amps) flowing through a circuit by inputting the values for power (watts) and voltage (volts). Useful for sizing conductors and understanding circuit loads. Voltage (Volts) Calculation: Calculate voltage (volts) in a circuit by providing the values for power (watts) and current (amps). Useful for assessing the voltage requirements of electrical components. Intuitive User Interface: The app features a clean and intuitive interface, making it easy for users to input values and obtain results quickly. No complex menus or unnecessary options. Efficient and Time-Saving: Avoid manual calculations and save time with this efficient calculator. Perfect for on-the-go professionals and DIYers working on electrical projects. Educational Tool: Ideal for students and learners in electrical engineering, providing a practical tool for reinforcing theoretical knowledge and understanding electrical concepts. Accurate Results: The app ensures accuracy in calculations, helping users make informed decisions about electrical systems and devices. Make your electrical calculations a breeze with the "Watts Amps Volts Calculator" app. Download now and empower yourself with a valuable tool for all your electrical projects.

Screenshots

Ohmulator4 screens
Watts Amps Volts Calculator4 screens

Verdict

The call

The clearest difference is rating: Ohmulator at 4.7 against Watts Amps Volts Calculator's 3.0. Ohmulator also leads on ratings volume (79 vs 2) and price ($0.99 vs $1.99). On update cadence, ads, 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

Ohmulator costs $0.99 and Watts Amps Volts Calculator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ohmulator holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Ohmulator has 79 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Ohmulator ships an update every 2 months, Watts Amps Volts Calculator every 3 months. The most recent releases landed on October 22, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
Ohmulator versus Watts Amps Volts Calculator: the parameters behind the verdict, then further details
ParameterOhmulatorWatts Amps Volts Calculator
Price$0.99 — better$1.99
Rating4.7 (79 ratings) — better3.0 (2 ratings)
Positive reviews81.1% of reviews—
Number of ratings79 — better2
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better11.0
Further details — not scored
Size5 MB34 MB
Age rating4+4+
DeveloperArmchair EngineeringKantaben Gorasiya

Customer experience

Ohmulator

All ratings79 ratings
Positive92.4%
Neutral5.1%
Negative2.5%
Written reviews37 reviews
Positive81.1%
Neutral8.1%
Negative10.8%

Watts Amps Volts Calculator

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Ohmulator

No in-app purchases

None

Watts Amps Volts Calculator

No in-app purchases

Questions

Is Ohmulator free?
Ohmulator costs $0.99, with no in-app purchases.
Is Watts Amps Volts Calculator free?
Watts Amps Volts Calculator costs $1.99, with no in-app purchases.
Which has better reviews, Ohmulator or Watts Amps Volts Calculator?
Ohmulator is rated higher. Ohmulator averages 4.7 out of 5 from 79 ratings, while Watts Amps Volts Calculator averages 3.0 from 2 ratings.
Do Ohmulator or Watts Amps Volts Calculator have ads?
Neither Ohmulator nor Watts Amps Volts Calculator shows ads.
Which is updated more often, Ohmulator or Watts Amps Volts Calculator?
Ohmulator ships an update every 2 months, and Watts Amps Volts Calculator every 3 months. Most recently, Ohmulator was updated on October 22, 2026 and Watts Amps Volts Calculator on October 6, 2026.

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