Ohms Law vs Multimeter Wizard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ohms Law
This utility app calculates voltage, current, resistance, and power using Ohm's Law. Simply input any two values, and the app will compute the remaining two, providing a comprehensive tool for electrical calculations.
- Calculate Voltage
- Calculate Current
- Calculate Resistance
- Calculate Power
- Input two values to find others
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Ohms Law calculator for calculating power, current, resistance and voltage. Ohms Law Calculator Features: - Calculate Voltage (volts) - Calculate Current (amps) - Calculate Resistance (ohms) - Calculate Power (watts) Input any two values to calculate the other two. Ohms Law Formula: V = Voltage I = Current R = Resistance P = Power V / IxR (or P) An advanced Ohms Law calculator to calculate Voltage, Current, Resistance & Power. How to use: 1) Enter any two values to calculate the other two. 2) Tap calculate. A Voltage Calculator, Current, Resistance, Power calculator all in one app. Check out our collection of electrical apps for iPhone and iPad https://www.procertssoftware.com/apps/
Multimeter Wizard
This app helps new multimeter users understand readings by automatically converting measurements to their basic units. It provides detailed conversion steps to aid learning and build confidence. Suggestions for improvement are welcome.
- Automatic unit conversion
- Detailed conversion steps
- Learning aid for multimeter use
- Supports V, Ω, and A units
- User suggestion feedback
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Are you new to using a multimeter? Do you sometimes get confused by the symbols on the display? Or are you just a little unsure sometimes with the reading? Never fear, the Multimeter Wizard is here! With our fun little app you just use your multimeter to take a reading, enter it into the app, select the same prefix (M, k, m or µ) as being displayed on your multimeter and the reading will be automatically converted to its basic unit (V, Ω or A). That's it! If you want to better understand how the conversion is done you can simply pull down the results drawer and the conversion steps will be shown in detail. This is a great way to help you learn how to do the steps for yourself and give you confidence when using your multimeter. Got an idea for how to make this app more useful? Get in touch any time with your suggestion: info@blackstarsoftware.co.uk
Screenshots
Verdict
The clearest difference is in-app purchases: Ohms Law at none against Multimeter Wizard's 1. Ohms Law also leads on rating (4.3 vs 4.0). On price, ratings volume, update cadence and ads 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. Multimeter Wizard sells 1 one-off in-app purchase. Ohms Law asks for nothing beyond the download.
Ohms Law holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 7 and 4 respectively.
Ohms Law ships an update every 16 months, Multimeter Wizard every 10 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.
| Parameter | Ohms Law | Multimeter Wizard |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (7 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 70.0% of reviews | — |
| Number of ratings | 7 — better | 4 |
| Update frequency | Every 16 months | Every 10 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 12 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Pro Certs Software Ltd | Blackstar Software Ltd |
Customer experience
Ohms Law
Multimeter Wizard
In-app purchases
Ohms Law
No in-app purchases
Multimeter Wizard
- Remove Adverts$0.99
Questions
Is Ohms Law free?
Is Multimeter Wizard free?
Which has better reviews, Ohms Law or Multimeter Wizard?
Do Ohms Law or Multimeter Wizard have ads?
Which is updated more often, Ohms Law or Multimeter Wizard?
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