# explainEN287 vs OrbitalChamp

The clearest difference is update cadence: OrbitalChamp at every 5 weeks against explainEN287's every 20 months. On price, ads, 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.

explainEN287 ships an update every 20 months, OrbitalChamp every 5 weeks. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | explainEN287 | OrbitalChamp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 5 weeks** |
| Size | 1 MB | 66 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Georg Rose](https://appshunter.io/developer/521567472) | [OrbitalChamp Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1779882142) |

## What reviewers say

### explainEN287

[App page](https://appshunter.io/ios/app/explainen287/id656646286)

**Features:** macOS Compatibility

**In-app purchases:** none


### OrbitalChamp

[App page](https://appshunter.io/ios/app/orbitalchamp/id6738270253)

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

**In-app purchases:** none


## Frequently asked questions

### Is explainEN287 free?

explainEN287 is free to download, with no in-app purchases.

### Is OrbitalChamp free?

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

### Do explainEN287 or OrbitalChamp have ads?

Neither explainEN287 nor OrbitalChamp shows ads.

### Which is updated more often, explainEN287 or OrbitalChamp?

explainEN287 ships an update every 20 months, and OrbitalChamp every 5 weeks. Most recently, explainEN287 was updated on October 5, 2026 and OrbitalChamp on October 14, 2026.

---

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