# Naturens kalender vs Skyddsrum

The clearest difference is update cadence: Skyddsrum at every 6 days against Naturens kalender's every 6 months. Naturens kalender's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.2). On price, 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.

Naturens kalender ships an update every 6 months, Skyddsrum every 6 days. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Naturens kalender | Skyddsrum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 days** |
| Size | 2 MB | 10 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kim Lindgren](https://appshunter.io/developer/1604803194) | [LINUS ERIK ARENG](https://appshunter.io/developer/1806193442) |

## What reviewers say

### Naturens kalender

[App page](https://appshunter.io/ios/app/naturens-kalender/id554996960)

**Features:** macOS Compatibility

**In-app purchases:** none


### Skyddsrum

[App page](https://appshunter.io/ios/app/skyddsrum/id6744274579)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Naturens kalender free?

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

### Is Skyddsrum free?

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

### Do Naturens kalender or Skyddsrum have ads?

Neither Naturens kalender nor Skyddsrum shows ads.

### Which is updated more often, Naturens kalender or Skyddsrum?

Naturens kalender ships an update every 6 months, and Skyddsrum every 6 days. Most recently, Naturens kalender was updated on October 26, 2026 and Skyddsrum on October 30, 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.*