# Stuff or Not vs Spin Lab HQ

The clearest difference is update cadence: Spin Lab HQ at daily against Stuff or Not's every 10 months. On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Stuff or Not against 5.0 for Spin Lab HQ. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

Stuff or Not ships an update every 10 months, Spin Lab HQ daily. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Stuff or Not | Spin Lab HQ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/stuff-or-not/id6744778299/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/spin-lab-hq/id6758372701/reviews) |
| Number of ratings | 4 | 4 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Daily** |
| Monetization | Free | Free |
| Size | 281 MB | 32 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Adam Christian Maloof](https://appshunter.io/developer/1710687417) | [Matthew Carasiti](https://appshunter.io/developer/1872597940) |

## What reviewers say

### Stuff or Not

[App page](https://appshunter.io/ios/app/stuff-or-not/id6744778299)

Analyze baseball pitch characteristics and their impact on batted ball outcomes. Understand how velocity, movement, and release point influence ground balls, whiffs, and other events. Improve pitching strategy with data-driven insights from millions of collegiate and professional pitches.

**Highlights:** Pitch characteristic analysis, Batted ball outcome prediction, Expected statistics (xAVG, xSLG), D1 and MLB pitch data, Interactive heatmap visualization, Bullpen session enhancement

**Features:** macOS Compatibility

**In-app purchases:** none


### Spin Lab HQ

[App page](https://appshunter.io/ios/app/spin-lab-hq/id6758372701)

This app transforms raw baseball data into a comprehensive player development system for pitchers and hitters. It provides detailed analytics on pitch quality, movement, and hitting performance, offering clear benchmarks and targeted improvement plans. Features include 3D spin visualization, command analysis, and performance trend tracking.

**Highlights:** Pitch quality grading (Stuff+, D1 Grade), Detailed pitch metrics (velocity, spin, IVB, etc.), 3D spin axis globe visualization, Command bullseye analysis, Performance trend tracking, Hitter Grade with exit velocity/launch angle charts, Programming calendar for daily development

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stuff or Not free?

Stuff or Not is free to download, with no in-app purchases.

### Is Spin Lab HQ free?

Spin Lab HQ is free to download, with no in-app purchases.

### Which has better reviews, Stuff or Not or Spin Lab HQ?

Stuff or Not and Spin Lab HQ are both rated 5.0 out of 5 on the App Store, from 4 and 4 ratings respectively.

### Do Stuff or Not or Spin Lab HQ have ads?

Neither Stuff or Not nor Spin Lab HQ shows ads.

### Which is updated more often, Stuff or Not or Spin Lab HQ?

Stuff or Not ships an update every 10 months, and Spin Lab HQ daily. Most recently, Stuff or Not was updated on October 30, 2026 and Spin Lab HQ on November 5, 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.*