# Ohm's Law vs Electrical Calculator lite

Ohm's Law and Electrical Calculator lite both sit at 4.7 stars, but that hides the real split: 81% of Ohm's Law's written reviews are positive against 39% of Electrical Calculator lite's. Ohm's Law also leads on iOS requirement (9.0 vs 17.6). Electrical Calculator lite's advantage is ratings volume (579 vs 171). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Ohm's Law sells 1 one-off in-app purchase and Electrical Calculator lite sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Ohm's Law against 4.6 for Electrical Calculator lite. Both are backed by a comparable volume of ratings — 171 and 579 respectively. Written reviews are what separate them: 81% of Ohm's Law's written reviews are positive against 39% of Electrical Calculator lite's.

Ohm's Law ships an update every 4 months, Electrical Calculator lite every 2 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Ohm's Law | Electrical Calculator lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (171 ratings)](https://appshunter.io/ios/app/ohms-law/id389305829/reviews)** | [4.6 (579 ratings)](https://appshunter.io/ios/app/electrical-calculator-lite/id922903696/reviews) |
| Number of ratings | 171 | **579** |
| Positive reviews | **80.7% of reviews** | 39.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 18 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Creature Code Mobile, LLC](https://appshunter.io/developer/386736750) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Ohm's Law

[App page](https://appshunter.io/ios/app/ohms-law/id389305829)

This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.

**Highlights:** Ohm's Law calculations, Voltage calculation, Current calculation, Resistance calculation, Electrical formula solver

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Extremely user-friendly and intuitive interface
- ⚡ Fast and accurate calculations
- 🎯 Simple, focused design with no unnecessary clutter
- 💰 Free app with minimal ads that don't interfere
- 🔧 Requires only two values to calculate the rest

**What reviewers complain about**

- 🐛 Crashes when entering decimal values in multiple fields
- 🐛 Reset function doesn't work properly after first use
- ⚠️ App incompatible with newer iOS versions
- ⚠️ Outdated and hasn't been updated since iOS 6
- ❌ Limited functionality - single resistor only

**Reported bugs**

- App crashes when entering decimal points in multiple fields simultaneously
- Reset button fails to clear values after first use
- Large calculations cause app to crash
- Crashes on iPhone SE and iPhone 7 Plus with iOS 10+
- App won't open or frequently crashes on some devices

**Requested features**

- AC/DC checkbox option
- Three-phase power calculations
- Parallel and combination circuit support
- Impedance and reactance calculations
- Ohm's Wheel reference tool


### Electrical Calculator lite

[App page](https://appshunter.io/ios/app/electrical-calculator-lite/id922903696)

This comprehensive tool offers over 60 calculators and 16 converters for electrical engineering, wiring, and circuit analysis. It supports engineers, electricians, students, and hobbyists with calculations ranging from basic Ohm's Law to complex RLC circuits and power conversions.

**Highlights:** 60+ Electrical Calculators, 16 Electrical Unit Converters, Ohm's Law Calculations, RLC Circuit Analysis, Power and Current Calculations, Transformer Calculations, Wire Size Selector

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 16 Electrical Converters | $0.99 | one-time |
| Electrical Calculators | $3.99 | one-time |

**What reviewers like**

- 👍 Very helpful formulas for homework
- 👍 Easy to use interface
- 👍 Comprehensive electricity app, a true Swiss Army knife
- 👍 Well-designed, intuitive, and aesthetic interface
- 👍 Great for work, very useful

**What reviewers complain about**

-  anúncios são muito irritantes
- 💰 Useful features are paywalled (RMS calculator, transformer calculator, MVA/current calculator)
- 💰 Costs too much
- 💰 Extremely basic calculators, rest require purchase
- 💰 Unlock option doesn't work

**Reported bugs**

- Unlock option doesn’t work
- Voltage drop calculator is incorrect compared to other apps

**Requested features**

- Output vs frequency sweep plotting for resonance points or impedance graphs for RL and RC circuits
- Add MHz option for capacitive and inductive reactance calculators
- Add MHz option for resonance frequency calculator


## Frequently asked questions

### Is Ohm's Law free?

Ohm's Law is free to download, with in-app purchases available.

### Is Electrical Calculator lite free?

Electrical Calculator lite is free to download, with in-app purchases available.

### Which has better reviews, Ohm's Law or Electrical Calculator lite?

Ohm's Law is rated higher. Ohm's Law averages 4.7 out of 5 from 171 ratings, while Electrical Calculator lite averages 4.6 from 579 ratings.

### Do Ohm's Law or Electrical Calculator lite have ads?

Neither Ohm's Law nor Electrical Calculator lite shows ads.

### Which is updated more often, Ohm's Law or Electrical Calculator lite?

Ohm's Law ships an update every 4 months, and Electrical Calculator lite every 2 months. Most recently, Ohm's Law was updated on October 23, 2026 and Electrical Calculator lite on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*