# Borealis vs KP Forecast

The clearest difference is update cadence: Borealis at every 5 days against KP Forecast's every 4 months. KP Forecast's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Borealis sells 4 one-off in-app purchases and KP Forecast sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Borealis ships an update every 5 days, KP Forecast every 4 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Borealis | KP Forecast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 4 months |
| Size | 42 MB | 76 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Viktor Gidleaf](https://appshunter.io/developer/447833940) | [kota tada](https://appshunter.io/developer/1658942612) |

## What reviewers say

### Borealis

[App page](https://appshunter.io/ios/app/borealis-aurora-tracker/id6740575480)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Borealis Pro 1 | $0.49 | one-time |
| Borealis Pro 2 | $3.99 | one-time |
| Borealis Pro 3 | $7.99 | one-time |
| Borealis Pro 4 | $11.99 | one-time |


### KP Forecast

[App page](https://appshunter.io/ios/app/kp-forecast-auroravisibility/id6758230698)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 month) | $4.99 | per month |
| Premium (1 year) | $49.99 | per year |


## Frequently asked questions

### Is Borealis free?

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

### Is KP Forecast free?

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

### Do Borealis or KP Forecast have ads?

Both Borealis and KP Forecast show ads.

### Which is updated more often, Borealis or KP Forecast?

Borealis ships an update every 5 days, and KP Forecast every 4 months. Most recently, Borealis was updated on October 30, 2026 and KP Forecast 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.*