# Fogstar vs Simple Solar

The clearest difference is in-app purchases: Fogstar at none against Simple Solar's 4. Simple Solar's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Solar sells 4 in-app purchases, starting at $6.99 per month. Fogstar asks for nothing beyond the download.

Fogstar ships an update every 2 months, Simple Solar every 3 weeks. The most recent releases landed on September 12, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Fogstar | Simple Solar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 24 MB | 69 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Fogstar Drift](https://appshunter.io/developer/1642643716) | [Minutia Mobile](https://appshunter.io/developer/1446213585) |

## What reviewers say

### Fogstar

[App page](https://appshunter.io/ios/app/fogstar/id6738583949)

**In-app purchases:** none


### Simple Solar

[App page](https://appshunter.io/ios/app/simple-solar/id6743857767)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Automation | $6.99 | per month |
| Yearly Subscription | $59.00 | per year |
| Remove Ads | $2.99 | one-time |
| Remove Ad's | $2.99 | one-time |


## Frequently asked questions

### Is Fogstar free?

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

### Is Simple Solar free?

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

### Do Fogstar or Simple Solar have ads?

Neither Fogstar nor Simple Solar shows ads.

### Which is updated more often, Fogstar or Simple Solar?

Fogstar ships an update every 2 months, and Simple Solar every 3 weeks. Most recently, Fogstar was updated on September 12, 2026 and Simple Solar on September 16, 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.*