# SHB Electric vs CuCalc

The clearest difference is in-app purchases: SHB Electric at none against CuCalc's 1. SHB Electric also leads on update cadence (every 10 days vs every 3 weeks) and device support. On price there is nothing between them.

Both are free to download. CuCalc sells 1 one-off in-app purchase. SHB Electric asks for nothing beyond the download.

SHB Electric ships an update every 10 days, CuCalc every 3 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SHB Electric | CuCalc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 3 MB | 3 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [GSME](https://appshunter.io/developer/687305450) | [ANDELKO PADOVIC](https://appshunter.io/developer/1893648829) |

## What reviewers say

### SHB Electric

[App page](https://appshunter.io/ios/app/shb-electric/id687305407)

This app provides a suite of electrical engineering calculators, including Ohm's Law, power calculations, and cable sizing according to NFC 15-100 standards. It also offers charts for distribution transformers and copper busbars, with more features planned.

**Highlights:** Ohm's Law calculator, Power calculations (active, reactive, apparent), Cable sizing (NFC 15-100), Transformer data charts, Copper busbar current charts, Signal converter

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

**In-app purchases:** none


### CuCalc

[App page](https://appshunter.io/ios/app/cucalc/id6762284389)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CuCalc Pro | $9.99 | one-time |


## Frequently asked questions

### Is SHB Electric free?

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

### Is CuCalc free?

CuCalc is free to download, with in-app purchases available.

### Which is updated more often, SHB Electric or CuCalc?

SHB Electric ships an update every 10 days, and CuCalc every 3 weeks. Most recently, SHB Electric was updated on November 1, 2026 and CuCalc on October 24, 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.*