# Ohms Law Calc. vs CableApp

The clearest difference is rating: Ohms Law Calc. at 4.7 against CableApp's 3.0. Ohms Law Calc. also leads on ratings volume (1.3K vs 2). CableApp's advantage is in-app purchases (none vs 1) and review sentiment (61% vs 50%). On price, update cadence, ads and device support there is nothing between them.

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

Ohms Law Calc. holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Ohms Law Calc. has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of Ohms Law Calc.'s written reviews are positive against 61% of CableApp's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Ohms Law Calc. | CableApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/ohms-law-calc/id491898006/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/cableapp/id1180099775/reviews) |
| Number of ratings | **1.3K** | 2 |
| Positive reviews | 50.0% of reviews | **61.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 59 MB | 57 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Prysmian Group](https://appshunter.io/developer/914872756) |

## 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


### CableApp

[App page](https://appshunter.io/ios/app/cableapp/id1180099775)

This tool assists professionals in selecting the optimal cabling solution for their projects. It calculates the best cross-section, offers money and CO2 saving advice, and provides access to technical documentation and industry news.

**Highlights:** Optimal cross-section calculation, Money and CO2 saving advice, Access to technical documentation, Direct link to product catalogs, Save, print, and share results, Industry news and videos

**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 CableApp free?

CableApp is free to download, with no in-app purchases.

### Which has better reviews, Ohms Law Calc. or CableApp?

Ohms Law Calc. is rated higher. Ohms Law Calc. averages 4.7 out of 5 from 1.3K ratings, while CableApp averages 3.0 from 2 ratings.

### Do Ohms Law Calc. or CableApp have ads?

Both Ohms Law Calc. and CableApp show ads.

### Which is updated more often, Ohms Law Calc. or CableApp?

Ohms Law Calc. ships an update every 2 months, and CableApp every 2 months. Most recently, Ohms Law Calc. was updated on October 14, 2026 and CableApp on October 10, 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.*