# Mobile Electrician vs SYSTEM // ZERO

The clearest difference is price: SYSTEM // ZERO at Free against Mobile Electrician's $4.99. SYSTEM // ZERO also leads on update cadence (every 3 weeks vs every 4 months). Mobile Electrician's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement there is nothing between them.

SYSTEM // ZERO is free to download; Mobile Electrician costs $4.99 up front. SYSTEM // ZERO sells 5 one-off in-app purchases. Mobile Electrician asks for nothing beyond the download.

Mobile Electrician ships an update every 4 months, SYSTEM // ZERO every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Mobile Electrician | SYSTEM // ZERO |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[2.6 (5 ratings)](https://appshunter.io/ios/app/mobile-electrician/id1210782465/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 27 MB | 60 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Anatolij Tarasenko](https://appshunter.io/developer/1210782464) | [Raushan Nimatov](https://appshunter.io/developer/1888973196) |

## What reviewers say

### Mobile Electrician

[App page](https://appshunter.io/ios/app/mobile-electrician/id1210782465)

This app provides a comprehensive suite of electrical calculation tools for professionals and students. It covers a wide range of topics including Ohm's law, motor calculations, conductor sizing, and various standards. Access essential electrical data and perform complex computations quickly and accurately.

**Highlights:** Ohm's law calculations (DC/AC), Motor performance analysis, Conductor resistance and sizing, Capacitor and resistor calculations, Standard compliance tools (NEC, IEC, etc.), Unit conversions

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

**In-app purchases:** none


### SYSTEM // ZERO

[App page](https://appshunter.io/ios/app/system-zero/id6801821275)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knight Protocol System Pack | $9.99 | one-time |
| Solo Level Up System Pack | $9.99 | one-time |
| Mass Build | $24.99 | one-time |
| Fat Loss Protocol | $24.99 | one-time |
| Physique Maintenance | $24.99 | one-time |


## Frequently asked questions

### Is Mobile Electrician free?

Mobile Electrician costs $4.99, with no in-app purchases.

### Is SYSTEM // ZERO free?

SYSTEM // ZERO is free to download, with in-app purchases available.

### Do Mobile Electrician or SYSTEM // ZERO have ads?

Neither Mobile Electrician nor SYSTEM // ZERO shows ads.

### Which is updated more often, Mobile Electrician or SYSTEM // ZERO?

Mobile Electrician ships an update every 4 months, and SYSTEM // ZERO every 3 weeks. Most recently, Mobile Electrician was updated on November 6, 2026 and SYSTEM // ZERO on October 31, 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.*