# SolarShield Geomagnetic Alerts vs Filament

The clearest difference is ads: Filament at none against SolarShield Geomagnetic Alerts's shown. Filament also leads on update cadence (every 3 days vs fortnightly). SolarShield Geomagnetic Alerts's advantage is iOS requirement (15.5.0 vs 26.0). On price, 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.

SolarShield Geomagnetic Alerts ships an update fortnightly, Filament every 3 days. The most recent releases landed on September 18, 2026 and August 9, 2026 respectively.

## The numbers

| Metric | SolarShield Geomagnetic Alerts | Filament |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 32 MB | 14 MB |
| Requires iOS | **15.5.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Simon McAuliffe](https://appshunter.io/developer/1740443236) | [David Oreol](https://appshunter.io/developer/1892872687) |

## What reviewers say

### SolarShield Geomagnetic Alerts

[App page](https://appshunter.io/ios/app/solarshield-geomagnetic-alerts/id6747309109)

**Features:** macOS Compatibility

**In-app purchases:** none


### Filament

[App page](https://appshunter.io/ios/app/filament-tracker/id6762094669)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SolarShield Geomagnetic Alerts free?

SolarShield Geomagnetic Alerts is free to download, with no in-app purchases.

### Is Filament free?

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

### Do SolarShield Geomagnetic Alerts or Filament have ads?

SolarShield Geomagnetic Alerts shows ads; Filament does not.

### Which is updated more often, SolarShield Geomagnetic Alerts or Filament?

SolarShield Geomagnetic Alerts ships an update fortnightly, and Filament every 3 days. Most recently, SolarShield Geomagnetic Alerts was updated on September 18, 2026 and Filament on August 9, 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.*