# Stuff or Not vs Tracking Lab

The clearest difference is in-app purchases: Stuff or Not at none against Tracking Lab's 1. Tracking Lab's advantage is update cadence (every 4 days vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Tracking Lab sells 1 one-off in-app purchase. Stuff or Not asks for nothing beyond the download.

Stuff or Not ships an update every 10 months, Tracking Lab every 4 days. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Stuff or Not | Tracking Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stuff-or-not/id6744778299/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 281 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Adam Christian Maloof](https://appshunter.io/developer/1710687417) | [Takayuki Hamuro](https://appshunter.io/developer/1875707249) |

## 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


### Tracking Lab

[App page](https://appshunter.io/ios/app/tracking-lab-pitch-design/id6792044187)

Design, refine, and test baseball pitches with realistic physics simulations. Analyze metrics like velocity and spin rate, practice your release, and compete on a global leaderboard. All features run offline on your device.

**Highlights:** Design pitches with real-time metric response, Physics simulation of pitch trajectory, Practice release repeatability, Test pitches against a target, Global leaderboard competition, Offline device-based operation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lab Pro | $3.99 | one-time |


## Frequently asked questions

### Is Stuff or Not free?

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

### Is Tracking Lab free?

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

### Do Stuff or Not or Tracking Lab have ads?

Neither Stuff or Not nor Tracking Lab shows ads.

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

Stuff or Not ships an update every 10 months, and Tracking Lab every 4 days. Most recently, Stuff or Not was updated on October 21, 2026 and Tracking Lab on October 11, 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.*