# Sol Fire vs Synastry

The clearest difference is ads: Sol Fire at none against Synastry's shown. Sol Fire also leads on iOS requirement (12.0 vs 18.6). 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.

## The numbers

| Metric | Sol Fire | Synastry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 days |
| Size | 127 MB | 15 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Red Sol](https://appshunter.io/developer/1692859374) | [Tryfon Stergiou](https://appshunter.io/developer/1841345608) |

## What reviewers say

### Sol Fire

[App page](https://appshunter.io/ios/app/sol-fire/id6450325646)

**Features:** macOS Compatibility

**In-app purchases:** none


### Synastry

[App page](https://appshunter.io/ios/app/synastry-daily-transits/id6752854422)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sol Fire free?

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

### Is Synastry free?

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

### Do Sol Fire or Synastry have ads?

Synastry shows ads; Sol Fire does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*