# Interform vs Västervik Miljö & Energi

The clearest difference is update cadence: Västervik Miljö & Energi at every 3 months against Interform's every 11 months. Interform's advantage is iOS requirement (11.0 vs 15.0). 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.

Interform ships an update every 11 months, Västervik Miljö & Energi every 3 months. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Interform | Västervik Miljö & Energi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 months** |
| Size | 12 MB | 79 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Roxx Communication Group](https://appshunter.io/developer/408833746) | [Västervik Miljö & Energi AB](https://appshunter.io/developer/1708911346) |

## What reviewers say

### Interform

[App page](https://appshunter.io/ios/app/interform/id1565953781)

**Features:** macOS Compatibility

**In-app purchases:** none


### Västervik Miljö & Energi

[App page](https://appshunter.io/ios/app/vastervik-miljo-and-energi/id6467651172)

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

**In-app purchases:** none


## Frequently asked questions

### Is Interform free?

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

### Is Västervik Miljö & Energi free?

Västervik Miljö & Energi is free to download, with no in-app purchases.

### Do Interform or Västervik Miljö & Energi have ads?

Neither Interform nor Västervik Miljö & Energi shows ads.

### Which is updated more often, Interform or Västervik Miljö & Energi?

Interform ships an update every 11 months, and Västervik Miljö & Energi every 3 months. Most recently, Interform was updated on October 13, 2026 and Västervik Miljö & Energi on October 25, 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.*