# TerraConfig(legacy) vs Voltrelli

The clearest difference is update cadence: Voltrelli at every 10 days against TerraConfig(legacy)'s every 4 months. TerraConfig(legacy)'s advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

TerraConfig(legacy) ships an update every 4 months, Voltrelli every 10 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | TerraConfig(legacy) | Voltrelli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/terraconfiglegacy/id1509847240/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 32 MB | 87 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chargedot Shanghai New Energy Technology Co., Ltd](https://appshunter.io/developer/1043403460) | [Smart Business & Technologies Solutions SRL](https://appshunter.io/developer/1650374230) |

## What reviewers say

### TerraConfig(legacy)

[App page](https://appshunter.io/ios/app/terraconfiglegacy/id1509847240)

This tool allows qualified electricians and engineers to commission, configure, and maintain ABB Terra AC wall boxes. It provides essential digital features for safe charger setup and management, including network configuration and firmware updates.

**Highlights:** Commission and configure wall boxes via Bluetooth, Configure network gateways (WiFi, LAN, 4G), Adjust charging power and load balance, Sync configurations to ABB backend, Update wall box firmware

**In-app purchases:** none


### Voltrelli

[App page](https://appshunter.io/ios/app/voltrelli/id6443899578)

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

**In-app purchases:** none


## Frequently asked questions

### Is TerraConfig(legacy) free?

TerraConfig(legacy) is free to download, with no in-app purchases.

### Is Voltrelli free?

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

### Do TerraConfig(legacy) or Voltrelli have ads?

Neither TerraConfig(legacy) nor Voltrelli shows ads.

### Which is updated more often, TerraConfig(legacy) or Voltrelli?

TerraConfig(legacy) ships an update every 4 months, and Voltrelli every 10 days. Most recently, TerraConfig(legacy) was updated on November 3, 2026 and Voltrelli on November 3, 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.*