# W vs Optivolt

The clearest difference is in-app purchases: W at none against Optivolt's 1. W also leads on iOS requirement (15 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Optivolt sells 1 one-off in-app purchase. W asks for nothing beyond the download.

## The numbers

| Metric | W | Optivolt |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 29 MB | 2 MB |
| Requires iOS | **15** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LumenRadio AB](https://appshunter.io/developer/1443137236) | [Stefano Ferrario](https://appshunter.io/developer/6822181285) |

## What reviewers say

### W

[App page](https://appshunter.io/ios/app/w-bacnet/id6472276160)

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

**In-app purchases:** none


### Optivolt

[App page](https://appshunter.io/ios/app/optivolt-smart-ev-charging/id6822181283)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Optivolt Pro | $2.99 | one-time |


## Frequently asked questions

### Is W free?

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

### Is Optivolt free?

Optivolt is free to download, with in-app purchases available.

### Do W or Optivolt have ads?

Neither W nor Optivolt shows ads.

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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.*