# C4 Energi vs PMR

The clearest difference is update cadence: PMR at every 5 months against C4 Energi's every 15 months. C4 Energi's advantage is iOS requirement (15.0 vs 18.0). 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.

C4 Energi ships an update every 15 months, PMR every 5 months. The most recent releases landed on October 4, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | C4 Energi | PMR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 months** |
| Size | 21 MB | 121 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [C4Energi AB](https://appshunter.io/developer/1730723470) | [PMR MobiltelefoniAktiebolaget](https://appshunter.io/developer/1606380851) |

## What reviewers say

### C4 Energi

[App page](https://appshunter.io/ios/app/c4-energi/id1236169747)

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

**In-app purchases:** none


### PMR

[App page](https://appshunter.io/ios/app/pmr/id1606380849)

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

**In-app purchases:** none


## Frequently asked questions

### Is C4 Energi free?

C4 Energi is free to download, with no in-app purchases.

### Is PMR free?

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

### Do C4 Energi or PMR have ads?

Neither C4 Energi nor PMR shows ads.

### Which is updated more often, C4 Energi or PMR?

C4 Energi ships an update every 15 months, and PMR every 5 months. Most recently, C4 Energi was updated on October 4, 2026 and PMR on October 27, 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.*