# Voltas BMS vs Electrician's assistant

The clearest difference is in-app purchases: Voltas BMS at none against Electrician's assistant's 1. Voltas BMS also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). On price, update cadence and device support there is nothing between them.

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

Voltas BMS ships an update fortnightly, Electrician's assistant every 2 weeks. The most recent releases landed on July 7, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Voltas BMS | Electrician's assistant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 35 MB | 43 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VOLTAKER Kereskedelmi Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1577347073) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### Voltas BMS

[App page](https://appshunter.io/ios/app/voltas-bms/id1568684666)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Voltas BMS free?

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

### Is Electrician's assistant free?

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

### Do Voltas BMS or Electrician's assistant have ads?

Electrician's assistant shows ads; Voltas BMS does not.

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

Voltas BMS ships an update fortnightly, and Electrician's assistant every 2 weeks. Most recently, Voltas BMS was updated on July 7, 2026 and Electrician's assistant on September 17, 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.*