# Contractors @ SG vs Electrical calculation

The clearest difference is in-app purchases: Contractors @ SG at none against Electrical calculation's 1. Contractors @ SG also leads on update cadence (every 5 weeks vs every 3 months). Electrical calculation's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Electrical calculation sells 1 one-off in-app purchase. Contractors @ SG asks for nothing beyond the download.

Contractors @ SG ships an update every 5 weeks, Electrical calculation every 3 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Contractors @ SG | Electrical calculation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/electrical-calculation/id6741321759/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 42 MB | 44 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Novanet Solutions](https://appshunter.io/developer/1482778283) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### Contractors @ SG

[App page](https://appshunter.io/ios/app/contractors-sg/id1532876460)

**Features:** macOS Compatibility

**In-app purchases:** none


### Electrical calculation

[App page](https://appshunter.io/ios/app/electrical-calculation/id6741321759)

This app helps with electrical wiring calculations for various buildings, ensuring compliance with the latest standards. It offers tools for load distribution and voltage drop estimation, aiding in efficient and safe electrical installations.

**Highlights:** Electrical wiring calculations, Cable and wire cross-section analysis, Load distribution analysis, Voltage drop estimation, Compliance with PUE standards

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $9.99 | one-time |


## Frequently asked questions

### Is Contractors @ SG free?

Contractors @ SG is free to download, with no in-app purchases.

### Is Electrical calculation free?

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

### Do Contractors @ SG or Electrical calculation have ads?

Contractors @ SG shows ads; Electrical calculation does not.

### Which is updated more often, Contractors @ SG or Electrical calculation?

Contractors @ SG ships an update every 5 weeks, and Electrical calculation every 3 months. Most recently, Contractors @ SG was updated on October 29, 2026 and Electrical calculation on October 30, 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.*