# Comet4 vs EVA

The clearest difference is update cadence: EVA at every 3 weeks against Comet4's every 6 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.

Comet4 ships an update every 6 months, EVA every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Comet4 | EVA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 33 MB | 62 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andres Mena Tobar](https://appshunter.io/developer/1487763227) | [My EMS](https://appshunter.io/developer/1878112414) |

## What reviewers say

### Comet4

[App page](https://appshunter.io/ios/app/comet4/id1487763228)

**Features:** macOS Compatibility

**In-app purchases:** none


### EVA

[App page](https://appshunter.io/ios/app/eva-energy-management/id6759330829)

**In-app purchases:** none


## Frequently asked questions

### Is Comet4 free?

Comet4 is free to download, with no in-app purchases.

### Is EVA free?

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

### Do Comet4 or EVA have ads?

Neither Comet4 nor EVA shows ads.

### Which is updated more often, Comet4 or EVA?

Comet4 ships an update every 6 months, and EVA every 3 weeks. Most recently, Comet4 was updated on November 3, 2026 and EVA on October 31, 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.*