# Orbital Simulator vs Skilled Trades iCert Prep

The clearest difference is in-app purchases: Orbital Simulator at none against Skilled Trades iCert Prep's 3. Orbital Simulator also leads on iOS requirement (12.0 vs 14.0). Skilled Trades iCert Prep's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Skilled Trades iCert Prep sells 3 in-app purchases, starting at $34.99 per 3 months. Orbital Simulator asks for nothing beyond the download.

## The numbers

| Metric | Orbital Simulator | Skilled Trades iCert Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/orbital-simulator-explorer/id6511195732/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Ad-supported | — |
| Size | 247 MB | 113 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Renzo Macedo](https://appshunter.io/developer/1403943580) | [iCert Inc.](https://appshunter.io/developer/1650970619) |

## What reviewers say

### Orbital Simulator

[App page](https://appshunter.io/ios/app/orbital-simulator-explorer/id6511195732)

Explore orbital mechanics through interactive simulations and real-time solar system data. Learn about Kepler's Laws, practice orbital maneuvers, and engage in mission objectives. Ideal for students and space enthusiasts.

**Highlights:** Interactive orbital simulations, Kepler's Laws visualization, Orbital maneuver practice, Real-time solar system view, Customizable orbital parameters, Detailed educational content, Mission-based challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### Skilled Trades iCert Prep

[App page](https://appshunter.io/ios/app/skilled-trades-icert-prep/id6581486443)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Month Resource & Exam Access | $34.99 | per 3 months |
| 6-Month Resource & Exam Access | $49.99 | per 6 months |
| Annual Resource & Exam Access | $79.99 | per year |


## Frequently asked questions

### Is Orbital Simulator free?

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

### Is Skilled Trades iCert Prep free?

Skilled Trades iCert Prep is free to download, with in-app purchases available.

### Do Orbital Simulator or Skilled Trades iCert Prep have ads?

Orbital Simulator shows ads; Skilled Trades iCert Prep does not.

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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.*