# Smart MasterKey vs VOOL

The clearest difference is iOS requirement: Smart MasterKey at 15.0 against VOOL's 17.6. 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.

Smart MasterKey ships an update every 3 weeks, VOOL fortnightly. The most recent releases landed on September 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Smart MasterKey | VOOL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 109 MB | 125 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Smart Masterkey OU](https://appshunter.io/developer/1548442774) | [MultiCharge OU](https://appshunter.io/developer/1625724556) |

## What reviewers say

### Smart MasterKey

[App page](https://appshunter.io/ios/app/smart-masterkey/id1599720530)

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

**In-app purchases:** none


### VOOL

[App page](https://appshunter.io/ios/app/vool-smart-ev-charging/id1669222009)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart MasterKey free?

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

### Is VOOL free?

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

### Do Smart MasterKey or VOOL have ads?

Neither Smart MasterKey nor VOOL shows ads.

### Which is updated more often, Smart MasterKey or VOOL?

Smart MasterKey ships an update every 3 weeks, and VOOL fortnightly. Most recently, Smart MasterKey was updated on September 16, 2026 and VOOL on September 17, 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.*