# Hit or Not — A baseball analytics app

> Baseball analytics app for evaluating plate appearances using exit velocity and launch angle. (iPhone/iPad app by Adam Christian Maloof.)

- Source: https://appshunter.io/ios/app/hit-or-not/id6744456329 (this page in markdown: same URL + `.md`)
- Developer: [Adam Christian Maloof](https://appshunter.io/developer/1710687417)
- Category: Sports, Utilities
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 17.6 · 69 MB
- Languages: American English
- Released: 2025-04-10
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hit-or-not/id6744456329/reviews.md

## What is Hit or Not?

The Hit or Not app is designed to contribute to coach, player, and fan evaluations of plate appearances (PA) in baseball. The app also works great for batting cage competitions.

To make this app work, I take all available data from the 2023-2026 NCAA Division 1 baseball seasons, and 2022-2026 MLB seasons.For each 1 mph increment in exit velocity (EV) and 1° increment in launch angle (LA), I count all instances of outs, singles (1b), doubles (2b), triples (3b) and home runs (hr). The user also has the option to select an outfield direction for the hit. I do not provide the option to choose an infield direction, because NCAA data for hit direction on ground balls is too inaccurate. When the user selects 'MLB', they can make an additional choice to evaluate hits in any of the 30 MLB parks.

With these counts based on user input of League, hit Direction, Park, EV, and LA, I compute the mean batting average (AVG) and slugging percentage (SLG). These values of AVG and SLG are equivalent to 'expected stats (xBA or xSLG) for balls in play (not including strikeouts). For both counts and percentages, I apply 9-cell neighborhood averaging around each {EV,LA} pair to account for the average Trackman/Hawkeye errors in EV and LA observations. Similarly, the hit Direction bins are sampled with 5° overlap.

When the user taps the 'Calculate' button, the app selects randomly from the distribution of out, 1b, 2b, 3b, and hr counts and displays an outcome that simulates some of the randomness in baseball, while respecting the statistics of the user's inputs for League, hit Direction, Park, EV, and LA.  The user can tap the 'Calculate' button as many times as they like, with each tap representing a reroll of the dice. We often use this feature when players or coaches challenge a HitOrNot result during an indoor scrimmage.

The heat map screen takes the same data used in the dashboard, and plots the user selected grid as a heatmap. This tool allows users to interrogate the differences in {EV,LA} outcomes for different Leagues, hit Directions, and Parks. The about screen allows users to update the data in the map to the most recent week of NCAA and MLB play.

Thank you to Joe Haumacher, Kyle Bonicki, Scott Bradley, and the Princeton University Baseball Team.

## Key features

- Plate appearance evaluation
- Expected batting average and slugging percentage calculation
- Exit velocity and launch angle analysis
- Hit outcome simulation
- Heatmap visualization of data
- NCAA and MLB season data integration


## Frequently asked questions about Hit or Not

### What baseball leagues does Hit or Not use data from?

Hit or Not utilizes data from the 2023-2026 NCAA Division 1 baseball seasons and the 2022-2026 MLB seasons. This allows for comprehensive analysis across different levels of play.

### Can I choose infield directions for ground balls in Hit or Not?

No, Hit or Not does not provide the option to choose infield directions for ground balls. This is due to the inaccuracy of NCAA data for hit direction on ground balls.

### How does Hit or Not simulate hit outcomes?

When you tap 'Calculate', the app randomly selects from the distribution of out, 1b, 2b, 3b, and hr counts based on your inputs. This simulates the randomness of baseball while respecting the underlying statistics.

### What is the heat map screen in Hit or Not used for?

The heat map screen visualizes the data used in the dashboard as a heatmap. It allows users to interrogate differences in {EV,LA} outcomes for different Leagues, hit Directions, and Parks.

### How often is the data in Hit or Not updated?

The 'About' screen allows users to update the data to the most recent week of NCAA and MLB play. This ensures you are working with the latest available statistics.

### Is Hit or Not available on Android devices?

Currently, Hit or Not is only supported on iPhone devices. The app has been optimized for the iOS platform.

### What is the age rating for Hit or Not?

Hit or Not has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger baseball enthusiasts.

### Does Hit or Not have ads?

No, Hit or Not does not contain advertisements. The app is completely ad-free, providing an uninterrupted user experience.

## Version history (last 3 releases)

### 1.2 — 2026-02-21

Bundled with complete 2025 NCAA and MLB seasons. Added an 'Update Data' button that allows the user to get the most recent model (updated weekly).

### 1.1 — 2025-04-18

Updated the database through April 16 and improved the user experience.

### 1.0 — 2025-04-11

No release notes.

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## More apps by Adam Christian Maloof

- [Hit or Not (Legacy)](https://appshunter.io/ios/app/hit-or-not-legacy/id6468853496)
- [PitSeason](https://appshunter.io/ios/app/pitseason/id6476927535)
- [Stuff or Not](https://appshunter.io/ios/app/stuff-or-not/id6744778299)

All apps by Adam Christian Maloof: https://appshunter.io/developer/1710687417

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*