# Encyclopedia vs Sun Light Hours

The clearest difference is ads: Encyclopedia at none against Sun Light Hours's shown. Sun Light Hours's advantage is update cadence (every 3 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Encyclopedia sells 1 one-off in-app purchase and Sun Light Hours sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Encyclopedia ships an update monthly, Sun Light Hours every 3 days. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Encyclopedia | Sun Light Hours |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (14 ratings)](https://appshunter.io/ios/app/encyclopedia-solar-system/id1124568774/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 322 MB | 43 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Good Spider, LLC](https://appshunter.io/developer/1487595667) | [NovaNext](https://appshunter.io/developer/1285557502) |

## What reviewers say

### Encyclopedia

[App page](https://appshunter.io/ios/app/encyclopedia-solar-system/id1124568774)

Explore the solar system with extensive articles and high-definition images. This app offers comprehensive information, engaging content, and a user-friendly interface, making it suitable for both children and adults interested in space.

**Highlights:** Thousands of articles and HD photos, Comprehensive solar system information, Engaging and easy-to-understand content, Offline availability, Badge collection for reading, Intuitive user interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### Sun Light Hours

[App page](https://appshunter.io/ios/app/sun-light-hours/id6499107039)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Donate $3 | $2.99 | one-time |
| Donate $5 | $4.99 | one-time |
| Donate $10 | $9.99 | one-time |
| Donate $15 | $14.99 | one-time |
| Donate $20 | $19.99 | one-time |


## Frequently asked questions

### Is Encyclopedia free?

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

### Is Sun Light Hours free?

Sun Light Hours is free to download, with in-app purchases available.

### Do Encyclopedia or Sun Light Hours have ads?

Sun Light Hours shows ads; Encyclopedia does not.

### Which is updated more often, Encyclopedia or Sun Light Hours?

Encyclopedia ships an update monthly, and Sun Light Hours every 3 days. Most recently, Encyclopedia was updated on October 4, 2026 and Sun Light Hours on October 1, 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.*