# Electrical Tools & Reference vs GroundLoop

The clearest difference is device support: Electrical Tools & Reference at 3 against GroundLoop's 1. Electrical Tools & Reference also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Electrical Tools & Reference sells 2 in-app purchases, starting at $2.99 per month and GroundLoop sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Electrical Tools & Reference ships an update every 3 weeks, GroundLoop every 11 days. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Electrical Tools & Reference | GroundLoop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Size | 88 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) | [毅 王](https://appshunter.io/developer/6774631380) |

## What reviewers say

### Electrical Tools & Reference

[App page](https://appshunter.io/ios/app/electrical-tools-and-reference/id6746714702)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Lifetime Premium | $3.99 | one-time |


### GroundLoop

[App page](https://appshunter.io/ios/app/groundloop-earth-ground-test/id6779190914)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GroundLoop Unlock | $19.99 | one-time |


## Frequently asked questions

### Is Electrical Tools & Reference free?

Electrical Tools & Reference is free to download, with in-app purchases available.

### Is GroundLoop free?

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

### Do Electrical Tools & Reference or GroundLoop have ads?

Neither Electrical Tools & Reference nor GroundLoop shows ads.

### Which is updated more often, Electrical Tools & Reference or GroundLoop?

Electrical Tools & Reference ships an update every 3 weeks, and GroundLoop every 11 days. Most recently, Electrical Tools & Reference was updated on September 18, 2026 and GroundLoop on September 19, 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.*