# Railbird Pool vs QMD4 Stroke Trainer/Analyzer

The clearest difference is review sentiment: Railbird Pool at 56% against QMD4 Stroke Trainer/Analyzer's 0%. Railbird Pool also leads on rating (4.2 vs 3.0) and update cadence (weekly vs every 2 months). QMD4 Stroke Trainer/Analyzer's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 16.4). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Railbird Pool sells 4 in-app purchases, starting at $10.99 per month. QMD4 Stroke Trainer/Analyzer asks for nothing beyond the download.

Railbird Pool holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: Railbird Pool has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 56% of Railbird Pool's written reviews are positive against 0% of QMD4 Stroke Trainer/Analyzer's.

Railbird Pool ships an update weekly, QMD4 Stroke Trainer/Analyzer every 2 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Railbird Pool | QMD4 Stroke Trainer/Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (26 ratings)](https://appshunter.io/ios/app/railbird-pool/id6469274937/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/qmd4-stroke-traineranalyzer/id6737728075/reviews) |
| Number of ratings | **26** | 1 |
| Positive reviews | **55.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free | Free |
| Size | 113 MB | 10 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Railbird LLC](https://appshunter.io/developer/1711718537) | [Mosens LLC](https://appshunter.io/developer/1282490669) |

## What reviewers say

### Railbird Pool

[App page](https://appshunter.io/ios/app/railbird-pool/id6469274937)

This AI-powered app helps billiards players record, analyze, and improve their game. It simplifies performance tracking for players of all levels.

**Highlights:** AI-enabled performance tracking, Record game statistics, Analyze gameplay, Improve billiards skills, Simplified process

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Railbird Plus Montly | $10.99 | per month |
| Railbird Pro Monthly | $16.99 | per month |
| Railbird Plus Yearly | $80.00 | per year |
| Railbird Pro Yearly | $131.99 | per year |


### 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 Railbird Pool free?

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

### Is QMD4 Stroke Trainer/Analyzer free?

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

### Which has better reviews, Railbird Pool or QMD4 Stroke Trainer/Analyzer?

Railbird Pool is rated higher. Railbird Pool averages 4.2 out of 5 from 26 ratings, while QMD4 Stroke Trainer/Analyzer averages 3.0 from 1 ratings.

### Do Railbird Pool or QMD4 Stroke Trainer/Analyzer have ads?

Neither Railbird Pool nor QMD4 Stroke Trainer/Analyzer shows ads.

### Which is updated more often, Railbird Pool or QMD4 Stroke Trainer/Analyzer?

Railbird Pool ships an update weekly, and QMD4 Stroke Trainer/Analyzer every 2 months. Most recently, Railbird Pool was updated on October 16, 2026 and QMD4 Stroke Trainer/Analyzer on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*