# Effy Pro vs VoltaPro

The clearest difference is update cadence: Effy Pro at weekly against VoltaPro's every 3 weeks. 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.

Effy Pro ships an update weekly, VoltaPro every 3 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Effy Pro | VoltaPro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 60 MB | 54 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quelle Energie](https://appshunter.io/developer/588695232) | [IVOLTALIS](https://appshunter.io/developer/1802911517) |

## What reviewers say

### Effy Pro

[App page](https://appshunter.io/ios/app/effy-pro/id1454493946)

This app helps energy renovation professionals manage client subsidies. It allows users to simulate subsidy amounts and submit client requests before signing quotes, streamlining the process and potentially increasing business. It's designed for RGE-certified professionals in the energy efficiency sector.

**Highlights:** Client subsidy management, Subsidy amount simulation, Client request submission, Streamlined quote process, Supports energy renovation professionals, Facilitates Prime Effy benefits

**Features:** Vision Pro support

**In-app purchases:** none


### VoltaPro

[App page](https://appshunter.io/ios/app/voltapro/id1592323550)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Effy Pro free?

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

### Is VoltaPro free?

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

### Do Effy Pro or VoltaPro have ads?

Neither Effy Pro nor VoltaPro shows ads.

### Which is updated more often, Effy Pro or VoltaPro?

Effy Pro ships an update weekly, and VoltaPro every 3 weeks. Most recently, Effy Pro was updated on October 14, 2026 and VoltaPro on October 13, 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.*