# PULSE QB vs SpinLabAi

The clearest difference is in-app purchases: PULSE QB at none against SpinLabAi's 3. PULSE QB also leads on iOS requirement (10.0 vs 15.1). SpinLabAi's advantage is rating (4.2 vs 4.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. SpinLabAi sells 3 one-off in-app purchases. PULSE QB asks for nothing beyond the download.

SpinLabAi holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

PULSE QB ships an update every 5 weeks, SpinLabAi every 3 weeks. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PULSE QB | SpinLabAi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/pulse-qb/id1121774588/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/spinlabai/id6738286679/reviews)** |
| Number of ratings | 3 | **5** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 156 MB | 83 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Driveline Baseball](https://appshunter.io/developer/1513897848) | [Joseph Mohr](https://appshunter.io/developer/1779981311) |

## What reviewers say

### PULSE QB

[App page](https://appshunter.io/ios/app/pulse-qb/id1121774588)

This app monitors throwing biomechanics to help athletes build arm strength and recover faster. It provides daily workload targets and tailors throwing programs based on individual mechanics and history. Get insights to improve your performance and manage fatigue.

**Highlights:** Monitors throwing biomechanics, Provides daily workload targets, Tailors throwing programs, Builds arm strength, Aids in faster recovery, Manages fatigue

**Features:** macOS Compatibility

**In-app purchases:** none


### SpinLabAi

[App page](https://appshunter.io/ios/app/spinlabai/id6738286679)

This app provides quarterbacks and coaches with advanced biomechanical analysis of throws, featuring detailed reports and over 20 key metrics. It also offers a comprehensive drill library and a platform to connect with expert coaches for personalized training.

**Highlights:** Biomechanics breakdowns with overlay video, Over 20 key throwing metrics, Extensive drill library with 120+ videos, Worldwide leaderboard for competition, Expert coaching call scheduling

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase Credits x1 | $49.99 | one-time |
| Purchase Credits x5 | $249.99 | one-time |
| Purchase Credits x10 | $499.99 | one-time |


## Frequently asked questions

### Is PULSE QB free?

PULSE QB is free to download, with no in-app purchases.

### Is SpinLabAi free?

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

### Which has better reviews, PULSE QB or SpinLabAi?

SpinLabAi is rated higher. PULSE QB averages 4.0 out of 5 from 3 ratings, while SpinLabAi averages 4.2 from 5 ratings.

### Do PULSE QB or SpinLabAi have ads?

Neither PULSE QB nor SpinLabAi shows ads.

### Which is updated more often, PULSE QB or SpinLabAi?

PULSE QB ships an update every 5 weeks, and SpinLabAi every 3 weeks. Most recently, PULSE QB was updated on October 9, 2026 and SpinLabAi on September 30, 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.*