# Avalanche Forecast vs Sunspot Oslo

The clearest difference is device support: Avalanche Forecast at 4 against Sunspot Oslo's 2. Sunspot Oslo's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, 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.

Avalanche Forecast ships an update monthly, Sunspot Oslo every 3 weeks. The most recent releases landed on October 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Avalanche Forecast | Sunspot Oslo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 12 MB | 2 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jonas Follesoe](https://appshunter.io/developer/1613060789) | [Thomas Gautvedt](https://appshunter.io/developer/1785056819) |

## What reviewers say

### Avalanche Forecast

[App page](https://appshunter.io/ios/app/avalanche-forecast/id1613060787)

**In-app purchases:** none


### Sunspot Oslo

[App page](https://appshunter.io/ios/app/sunspot-oslo/id6746675424)

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

**In-app purchases:** none


## Frequently asked questions

### Is Avalanche Forecast free?

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

### Is Sunspot Oslo free?

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

### Do Avalanche Forecast or Sunspot Oslo have ads?

Neither Avalanche Forecast nor Sunspot Oslo shows ads.

### Which is updated more often, Avalanche Forecast or Sunspot Oslo?

Avalanche Forecast ships an update monthly, and Sunspot Oslo every 3 weeks. Most recently, Avalanche Forecast was updated on October 25, 2026 and Sunspot Oslo on October 13, 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.*