# Enefit vs Smart MasterKey

The clearest difference is update cadence: Smart MasterKey at every 3 weeks against Enefit's every 3 months. 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.

Enefit ships an update every 3 months, Smart MasterKey every 3 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | Enefit | Smart MasterKey |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 35 MB | 109 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eesti Energia](https://appshunter.io/developer/898742565) | [Smart Masterkey OU](https://appshunter.io/developer/1548442774) |

## What reviewers say

### Enefit

[App page](https://appshunter.io/ios/app/enefit/id898742562)

Monitor your electricity consumption, compare it with market trends, manage bills, and review contracts all in one place. It simplifies understanding your energy usage and making smarter choices, whether you produce your own electricity or just want to stay informed.

**Highlights:** Monitor electricity consumption and buy-back data, Compare usage with market trends, Manage and pay bills securely, View and manage energy contracts, Track produced and sold electricity, Optimize energy consumption habits

**Features:** Vision Pro support

**In-app purchases:** none


### Smart MasterKey

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Enefit free?

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

### Is Smart MasterKey free?

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

### Do Enefit or Smart MasterKey have ads?

Neither Enefit nor Smart MasterKey shows ads.

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

Enefit ships an update every 3 months, and Smart MasterKey every 3 weeks. Most recently, Enefit was updated on October 3, 2026 and Smart MasterKey on October 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.*