# SUDiver vs pxSat3D

The clearest difference is rating: pxSat3D at 4.5 against SUDiver's 3.0. pxSat3D also leads on iOS requirement (13.0 vs 15.6). SUDiver's advantage is in-app purchases (none vs 2) and update cadence (monthly vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

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

pxSat3D holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

SUDiver ships an update monthly, pxSat3D every 3 months. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SUDiver | pxSat3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/sudiver/id1294150341/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pxsat3d/id1493707854/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 12 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Diver Video LLC](https://appshunter.io/developer/412839658) | [P'tit Xav](https://appshunter.io/developer/373775246) |

## What reviewers say

### SUDiver

[App page](https://appshunter.io/ios/app/sudiver/id1294150341)

This educational app brings Stanford University's digital interactive video exploration tools to mobile devices. It allows users to create and share time-space referenced video clips, enabling detailed analysis of any video content.

**Highlights:** Guided-noticing spatial and temporal video referencing, Touch interface for moving and resizing reference rectangles, Networked sharing of point-of-view video clips, Analysis of personal videos and YouTube content, Social sharing of video clips to platforms like Twitter and Facebook

**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 SUDiver free?

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

### Is pxSat3D free?

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

### Which has better reviews, SUDiver or pxSat3D?

pxSat3D is rated higher. SUDiver averages 3.0 out of 5 from 2 ratings, while pxSat3D averages 4.5 from 2 ratings.

### Do SUDiver or pxSat3D have ads?

Neither SUDiver nor pxSat3D shows ads.

### Which is updated more often, SUDiver or pxSat3D?

SUDiver ships an update monthly, and pxSat3D every 3 months. Most recently, SUDiver was updated on October 1, 2026 and pxSat3D on October 2, 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.*