# Silicon Valley School vs pxSat3D

The clearest difference is in-app purchases: Silicon Valley School at none against pxSat3D's 2. pxSat3D's advantage is update cadence (every 3 months vs every 24 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. pxSat3D sells 2 one-off in-app purchases. Silicon Valley School asks for nothing beyond the download.

Silicon Valley School ships an update every 24 months, pxSat3D every 3 months. The most recent releases landed on October 29, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Silicon Valley School | pxSat3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pxsat3d/id1493707854/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 12 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Nirals Information Technologies Private Limited](https://appshunter.io/developer/1048861629) | [P'tit Xav](https://appshunter.io/developer/373775246) |

## What reviewers say

### Silicon Valley School

[App page](https://appshunter.io/ios/app/silicon-valley-school/id1249773682)

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

**In-app purchases:** none


### pxSat3D

[App page](https://appshunter.io/ios/app/pxsat3d/id1493707854)

Visualize real-time satellite orbits around Earth. Explore the density of specific satellite types in orbit. Performance may vary on older devices.

**Highlights:** Real-time satellite tracking, Visualize satellite orbits, Quantify satellite types, Space traffic visualization, Educational space data

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |
| Tip | $2.99 | one-time |


## Frequently asked questions

### Is Silicon Valley School free?

Silicon Valley School is free to download, with no in-app purchases.

### Is pxSat3D free?

pxSat3D is free to download, with in-app purchases available.

### Do Silicon Valley School or pxSat3D have ads?

Neither Silicon Valley School nor pxSat3D shows ads.

### Which is updated more often, Silicon Valley School or pxSat3D?

Silicon Valley School ships an update every 24 months, and pxSat3D every 3 months. Most recently, Silicon Valley School was updated on October 29, 2026 and pxSat3D on October 18, 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.*