# DigiBall App vs QMD4 Stroke Trainer/Analyzer

DigiBall App and QMD4 Stroke Trainer/Analyzer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DigiBall App ships an update every 5 weeks, QMD4 Stroke Trainer/Analyzer every 2 months. The most recent releases landed on September 23, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | DigiBall App | QMD4 Stroke Trainer/Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/qmd4-stroke-traineranalyzer/id6737728075/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 23 MB | 10 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nathan Rhoades LLC](https://appshunter.io/developer/1592036907) | [Mosens LLC](https://appshunter.io/developer/1282490669) |

## What reviewers say

### DigiBall App

[App page](https://appshunter.io/ios/app/digiball-app/id1661855313)

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

**In-app purchases:** none


### QMD4 Stroke Trainer/Analyzer

[App page](https://appshunter.io/ios/app/qmd4-stroke-traineranalyzer/id6737728075)

This app analyzes your billiards stroke using a Bluetooth-enabled device attached to your cue. It provides detailed 3D stroke information, playback, velocity charts, and instant audible alerts to help you identify and fix flaws.

**Highlights:** Bluetooth cue attachment, 3D stroke data transmission, Automatic shot recording/playback, Stroke velocity chart, Cue tip view, Audible 'as you stroke' alerts, Comprehensive practice metrics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DigiBall App free?

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

### Is QMD4 Stroke Trainer/Analyzer free?

QMD4 Stroke Trainer/Analyzer is free to download, with no in-app purchases.

### Do DigiBall App or QMD4 Stroke Trainer/Analyzer have ads?

Neither DigiBall App nor QMD4 Stroke Trainer/Analyzer shows ads.

### Which is updated more often, DigiBall App or QMD4 Stroke Trainer/Analyzer?

DigiBall App ships an update every 5 weeks, and QMD4 Stroke Trainer/Analyzer every 2 months. Most recently, DigiBall App was updated on September 23, 2026 and QMD4 Stroke Trainer/Analyzer on June 7, 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.*