# SUDiver vs Theseus

The clearest difference is in-app purchases: SUDiver at none against Theseus's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Theseus sells 3 in-app purchases, starting at $5.99 per 7 days. SUDiver asks for nothing beyond the download.

SUDiver ships an update monthly, Theseus every 3 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SUDiver | Theseus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sudiver/id1294150341/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 47 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Diver Video LLC](https://appshunter.io/developer/412839658) | [Ihtisham Mazhar](https://appshunter.io/developer/1664297761) |

## 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


### Theseus

[App page](https://appshunter.io/ios/app/theseus-communication-coach/id6777333043)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theseus Premium | $5.99 | per 7 days |
| Theseus Premium | $19.99 | per month |
| Theseus Premium | $119.99 | per year |


## Frequently asked questions

### Is SUDiver free?

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

### Is Theseus free?

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

### Do SUDiver or Theseus have ads?

Neither SUDiver nor Theseus shows ads.

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

SUDiver ships an update monthly, and Theseus every 3 weeks. Most recently, SUDiver was updated on October 18, 2026 and Theseus on October 24, 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.*