# BE vs ONS+

The clearest difference is iOS requirement: BE at 9.0 against ONS+'s 11.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BE ships an update every 2 months, ONS+ every 3 months. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | BE | ONS+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ons-plus/id1526485784/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 109 MB | 49 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Engerey Painéis Elétricos](https://appshunter.io/developer/1042058328) | [ONS - OPERADOR NACIONAL DO SISTEMA ELETRICO](https://appshunter.io/developer/1380823163) |

## What reviewers say

### BE

[App page](https://appshunter.io/ios/app/be-a-ba-da-eletrica/id1042058329)

This practical guide offers quick electrical reference information, including summaries of standards, manufacturer data, and automatic sizing tools for copper busbars, wires, and cables. It's designed for electrical professionals and students to ensure correct and safe installations.

**Highlights:** Copper busbar sizing tools, Wire and cable sizing tools, Electrical motor data, Motor starting information, Norms summaries, Manufacturer product catalogs, Equivalence and specification tables

**Features:** macOS Compatibility

**In-app purchases:** none


### ONS+

[App page](https://appshunter.io/ios/app/ons-plus/id1526485784)

Access real-time data on the National Electric System's operation from your mobile device. Monitor energy load, semi-hourly CMO, and generation. Receive alerts, download products, and track upcoming events.

**Highlights:** Real-time operation data, Energy load monitoring, Semi-hourly CMO tracking, Generation information, News alerts, Product downloads, Event tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is BE free?

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

### Is ONS+ free?

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

### Do BE or ONS+ have ads?

Neither BE nor ONS+ shows ads.

### Which is updated more often, BE or ONS+?

BE ships an update every 2 months, and ONS+ every 3 months. Most recently, BE was updated on October 15, 2026 and ONS+ on October 6, 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.*