# Electrician's assistant vs ONWATT

The clearest difference is in-app purchases: ONWATT at none against Electrician's assistant's 1. ONWATT also leads on ads (none vs shown). Electrician's assistant's advantage is update cadence (every 2 weeks vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Electrician's assistant sells 1 one-off in-app purchase. ONWATT asks for nothing beyond the download.

Electrician's assistant ships an update every 2 weeks, ONWATT every 4 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Electrician's assistant | ONWATT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Size | 43 MB | 190 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Albert Parti](https://appshunter.io/developer/534966701) | [Alpha ESS Co., Ltd.](https://appshunter.io/developer/1088168712) |

## What reviewers say

### Electrician's assistant

[App page](https://appshunter.io/ios/app/electricians-assistant/id6740750504)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertising-Electrician | $0.99 | one-time |


### ONWATT

[App page](https://appshunter.io/ios/app/onwatt/id6779455028)

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

**In-app purchases:** none


## Frequently asked questions

### Is Electrician's assistant free?

Electrician's assistant is free to download, with in-app purchases available.

### Is ONWATT free?

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

### Do Electrician's assistant or ONWATT have ads?

Electrician's assistant shows ads; ONWATT does not.

### Which is updated more often, Electrician's assistant or ONWATT?

Electrician's assistant ships an update every 2 weeks, and ONWATT every 4 months. Most recently, Electrician's assistant was updated on October 30, 2026 and ONWATT on November 5, 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.*