# rainfo vs Solis

The clearest difference is in-app purchases: rainfo at none against Solis's 1. rainfo also leads on iOS requirement (14.0 vs 17.6). Solis's advantage is ads (none vs shown) and update cadence (every 2 days vs every 5 days). On price and device support there is nothing between them.

Both are free to download. Solis sells 1 one-off in-app purchase. rainfo asks for nothing beyond the download.

rainfo ships an update every 5 days, Solis every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | rainfo | Solis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/solis-sun-and-moon/id6770580536/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 55 MB | 36 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [SANGBEOM PARK](https://appshunter.io/developer/1796086696) | [Jiajia Zhang](https://appshunter.io/developer/1896755122) |

## What reviewers say

### rainfo

[App page](https://appshunter.io/ios/app/rainfo/id6741888073)

**In-app purchases:** none


### Solis

[App page](https://appshunter.io/ios/app/solis-sun-and-moon/id6770580536)

Track the sun and moon's celestial paths with this precision almanac. Visualize daylight, twilight, and lunar phases with AR features and a 3D globe. Offers widgets for at-a-glance information.

**Highlights:** Sun and moon path tracking, Twilight and golden hour visualization, Realistic illuminated moon phases, Celestial Sky AR for trajectory alignment, Interactive 3D Earth globe, Home screen widgets, On-device calculations

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solis Full | $4.99 | one-time |


## Frequently asked questions

### Is rainfo free?

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

### Is Solis free?

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

### Do rainfo or Solis have ads?

rainfo shows ads; Solis does not.

### Which is updated more often, rainfo or Solis?

rainfo ships an update every 5 days, and Solis every 2 days. Most recently, rainfo was updated on October 30, 2026 and Solis 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.*