# Winter Science vs Avycast

The clearest difference is iOS requirement: Avycast at 15.1 against Winter Science's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Winter Science sells 2 in-app purchases, starting at $6.99 per month and Avycast sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Winter Science ships an update every 2 weeks, Avycast weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Winter Science | Avycast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/winter-science/id6754946560/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Freemium | — |
| Size | 50 MB | 36 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dataration LLC](https://appshunter.io/developer/1851071715) | [Mikhail Konkov](https://appshunter.io/developer/1886987523) |

## What reviewers say

### Winter Science

[App page](https://appshunter.io/ios/app/winter-science/id6754946560)

This app provides detailed snowpack simulations and AI-driven weather forecasts to help users understand current and future mountain conditions. It reconstructs past weather events and models snow layers to inform decisions about outdoor activities.

**Highlights:** AI-driven snowpack simulations, Reconstructed mountain weather history, Ensemble weather forecasting, Detailed snow layer analysis, Interactive terrain map, Regional outlooks

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $6.99 | per month |
| Pro Annual | $24.99 | per year |


### Avycast

[App page](https://appshunter.io/ios/app/avycast-avalanche-forecast/id6760953111)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $14.99 | per year |


## Frequently asked questions

### Is Winter Science free?

Winter Science is free to download, with in-app purchases available.

### Is Avycast free?

Avycast is free to download, with in-app purchases available.

### Do Winter Science or Avycast have ads?

Neither Winter Science nor Avycast shows ads.

### Which is updated more often, Winter Science or Avycast?

Winter Science ships an update every 2 weeks, and Avycast weekly. Most recently, Winter Science was updated on October 30, 2026 and Avycast 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.*