# Ohms Law Calc. vs Complex Number Cruncher

The clearest difference is in-app purchases: Complex Number Cruncher at none against Ohms Law Calc.'s 1. Complex Number Cruncher also leads on ads (none vs shown) and iOS requirement (10.3 vs 17.6). Ohms Law Calc.'s advantage is rating (4.7 vs 4.3) and ratings volume (1.3K vs 4). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Ohms Law Calc. sells 1 one-off in-app purchase. Complex Number Cruncher asks for nothing beyond the download.

Ohms Law Calc. holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Ohms Law Calc. has 1.3K ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ohms Law Calc. | Complex Number Cruncher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/ohms-law-calc/id491898006/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/complex-number-cruncher/id1046399105/reviews) |
| Number of ratings | **1.3K** | 4 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 59 MB | 16 MB |
| Requires iOS | 17.6 | **10.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Neil Woodcock](https://appshunter.io/developer/836792867) |

## What reviewers say

### Ohms Law Calc.

[App page](https://appshunter.io/ios/app/ohms-law-calc/id491898006)

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

**Highlights:** Ohm's Law calculations, Voltage drop calculator, Wire size calculator, Impedance calculations (R, L, C), Electrical unit converters, Power and current conversions, Circuit design tools

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ohms Law Calc. | $3.99 | one-time |

**What reviewers like**

- 🚀 Great value
- 🚀 Works perfectly
- 🚀 Fantastic app
- 👍 Best thing since sliced bread
- 🚀 Useful for electrical work

**What reviewers complain about**

- 👎 Have to pay again for an app already purchased
- 👎 Not easy to use
- 🐛 Paid but not unlocked, no response from developer
- 👎 Annoying pop-ups
- 🐛 Keeps shutting down

**Reported bugs**

- Paid version not unlocking
- Repeatedly prompting for payment after already paid
- Keyboard overlaying results making it difficult to see

**Requested features**

- Add more electrical conversions and calculations
- Add ability to input voltage and resistance to get amps and watts
- Add kVA, rms, and other popular needed conversions


### Complex Number Cruncher

[App page](https://appshunter.io/ios/app/complex-number-cruncher/id1046399105)

Perform calculations with complex numbers. Input real and imaginary parts or modulus and argument to find sums, differences, products, or quotients.

**Highlights:** Complex number calculations, Sum, difference, product, quotient, Real and imaginary input, Modulus and argument input, Automatic result calculation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ohms Law Calc. free?

Ohms Law Calc. is free to download, with in-app purchases available.

### Is Complex Number Cruncher free?

Complex Number Cruncher is free to download, with no in-app purchases.

### Which has better reviews, Ohms Law Calc. or Complex Number Cruncher?

Ohms Law Calc. is rated higher. Ohms Law Calc. averages 4.7 out of 5 from 1.3K ratings, while Complex Number Cruncher averages 4.3 from 4 ratings.

### Do Ohms Law Calc. or Complex Number Cruncher have ads?

Ohms Law Calc. shows ads; Complex Number Cruncher does not.

### Which is updated more often, Ohms Law Calc. or Complex Number Cruncher?

Ohms Law Calc. ships an update every 2 months, and Complex Number Cruncher every 2 months. Most recently, Ohms Law Calc. was updated on October 28, 2026 and Complex Number Cruncher on October 24, 2026.

---

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