# eVouala vs Proviso

The clearest difference is iOS requirement: eVouala at 12.0 against Proviso's 15.0. 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.

eVouala ships an update every 5 months, Proviso every 3 months. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | eVouala | Proviso |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/proviso/id1590003838/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 219 MB | 40 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MapGears inc.](https://appshunter.io/developer/1439850962) | [Delta Intelligent Building Technologies (Canada) Inc.](https://appshunter.io/developer/1039551888) |

## What reviewers say

### eVouala

[App page](https://appshunter.io/ios/app/evouala/id1588253124)

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

**In-app purchases:** none


### Proviso

[App page](https://appshunter.io/ios/app/proviso/id1590003838)

Configure and manage O3 Sense, O3 Edge, and RED5 devices with an intuitive interface. Easily adjust network settings, view sensor data, calibrate sensors, and update firmware via Bluetooth or NFC.

**Highlights:** Intuitive UI for device setup, Bluetooth and NFC connectivity, Network settings adjustment, Sensor data viewing, Sensor calibration, Firmware updates, Controller configuration

**In-app purchases:** none


## Frequently asked questions

### Is eVouala free?

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

### Is Proviso free?

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

### Do eVouala or Proviso have ads?

Neither eVouala nor Proviso shows ads.

### Which is updated more often, eVouala or Proviso?

eVouala ships an update every 5 months, and Proviso every 3 months. Most recently, eVouala was updated on October 10, 2026 and Proviso on October 4, 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.*