# Piston vs Digital Judge 2.0

The clearest difference is in-app purchases: Piston at none against Digital Judge 2.0's 2. Digital Judge 2.0's advantage is update cadence (daily vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Digital Judge 2.0 sells 1 in-app purchase, starting at $1.99 per 7 days. Piston asks for nothing beyond the download.

Piston ships an update monthly, Digital Judge 2.0 daily. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Piston | Digital Judge 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/piston/id1146341747/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free | — |
| Size | 113 MB | 7 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Super Jump Pty Ltd](https://appshunter.io/developer/892303095) | [KeepingScoreOnline.com](https://appshunter.io/developer/550111232) |

## What reviewers say

### Piston

[App page](https://appshunter.io/ios/app/piston/id1146341747)

This app facilitates learning and knowledge transfer during training and performances through multi-camera video analysis. It allows for capturing, reviewing, and annotating video from up to 16 cameras simultaneously, with options for live streaming and data export.

**Highlights:** 4K multi-camera capture, Up to 16 cameras simultaneously, Real-time annotation and markup, Drawing tools for highlighting, Live streaming and AWS S3 upload, Live Opta data import

**In-app purchases:** none


### Digital Judge 2.0

[App page](https://appshunter.io/ios/app/digital-judge-20/id6475669262)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly access | $1.99 | per 7 days |


## Frequently asked questions

### Is Piston free?

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

### Is Digital Judge 2.0 free?

Digital Judge 2.0 is free to download, with in-app purchases available.

### Do Piston or Digital Judge 2.0 have ads?

Neither Piston nor Digital Judge 2.0 shows ads.

### Which is updated more often, Piston or Digital Judge 2.0?

Piston ships an update monthly, and Digital Judge 2.0 daily. Most recently, Piston was updated on October 11, 2026 and Digital Judge 2.0 on October 25, 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.*