# Red Days vs SolarLunar Data

The clearest difference is rating: SolarLunar Data at 5.0 against Red Days's 4.5. SolarLunar Data also leads on iOS requirement (17.0 vs 26.6). Red Days's advantage is device support (4 vs 1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SolarLunar Data holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Red Days | SolarLunar Data |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/red-days-holiday-countdown/id1128247890/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/solarlunar-data/id6475114921/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | Free |
| Size | 29 MB | 3 MB |
| Requires iOS | 26.6 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [(optional.is)](https://appshunter.io/developer/1071156347) | [Thomas Mead](https://appshunter.io/developer/1723362092) |

## What reviewers say

### Red Days

[App page](https://appshunter.io/ios/app/red-days-holiday-countdown/id1128247890)

Easily track upcoming public holidays with a countdown to your next day off. Access a year's worth of holiday information offline, right from your wrist or phone.

**Highlights:** Public holiday countdowns, US, UK, Canada, Iceland holidays, Offline access, Wearable support, Yearly holiday list

**Features:** Apple Watch app

**In-app purchases:** none


### SolarLunar Data

[App page](https://appshunter.io/ios/app/solarlunar-data/id6475114921)

Visualize sun and moon shadows at any time and location. Save favorite spots, receive sunrise/sunset alerts, and check current sky conditions. Zoom in for detailed analysis of celestial body positions.

**Highlights:** Sun and moon shadow visualization, Time and date manipulation, Favorite locations list, Sunrise/sunset alerts, Moon phase tracking, Map-based location search, Current sky conditions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Red Days free?

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

### Is SolarLunar Data free?

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

### Which has better reviews, Red Days or SolarLunar Data?

SolarLunar Data is rated higher. Red Days averages 4.5 out of 5 from 2 ratings, while SolarLunar Data averages 5.0 from 1 ratings.

### Do Red Days or SolarLunar Data have ads?

Neither Red Days nor SolarLunar Data shows ads.

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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.*