# Spark Motion Pro vs Reflex

The clearest difference is in-app purchases: Spark Motion Pro at none against Reflex's 10. Spark Motion Pro also leads on ads (none vs shown) and review sentiment (67% vs 33%). Reflex's advantage is update cadence (weekly vs every 2 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Reflex sells 10 in-app purchases, starting at $4.99 per 7 days. Spark Motion Pro asks for nothing beyond the download.

Reflex holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 14 and 12 respectively. Written reviews complicate that: 67% of Spark Motion Pro's written reviews are positive against 33% of Reflex's, so the app with the better star average is not the one people write more warmly about.

Spark Motion Pro ships an update every 2 months, Reflex weekly. The most recent releases landed on June 1, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | Spark Motion Pro | Reflex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (14 ratings)](https://appshunter.io/ios/app/spark-motion-pro/id552652332/reviews) | **[4.3 (12 ratings)](https://appshunter.io/ios/app/reflex-shoulder-mobility-app/id1555112791/reviews)** |
| Number of ratings | **14** | 12 |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 30 MB | 93 MB |
| Requires iOS | 15 | **14.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Spark Motion LLC](https://appshunter.io/developer/449938690) | [Sliced Backhand Ltd](https://appshunter.io/developer/1497308042) |

## What reviewers say

### Spark Motion Pro

[App page](https://appshunter.io/ios/app/spark-motion-pro/id552652332)

This app analyzes movement using video recordings on your iPad. Professionals can capture, edit, and evaluate motion to provide visual feedback and track progress for clients, teams, or patients.

**Highlights:** Record, capture, and evaluate movement, Edit clips and compare videos, Instantaneous visual feedback, 2 GB HIPAA Compliant Spark Cloud storage, Screen Recorder voice-over tool, Precise line drawing and measurement tools, Frame-by-frame analysis (30 or 120 FPS)

**Features:** macOS Compatibility

**In-app purchases:** none


### Reflex

[App page](https://appshunter.io/ios/app/reflex-shoulder-mobility-app/id1555112791)

This app uses your phone's camera and AI to measure shoulder range of motion and guide you through personalized exercises. It helps track recovery, prevent injury, and improve mobility with tailored stretches and progress monitoring.

**Highlights:** AI-powered shoulder assessment, Personalized exercise recommendations, Range of motion measurement, Injury prevention guidance, Recovery progress tracking, Pain and sleep tracking

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Billed Every Week | $4.99 | per 7 days |
| Billed Every Month (Starter) | $4.99 | per month |
| Billed Every Month | $7.49 | per month |
| Billed Every Month (Standard) | $9.99 | per month |
| Billed Every Month | $14.99 | per month |
| Billed Every 3 Months | $34.99 | per 3 months |
| Billed Every Year | $54.99 | per year |
| Billed Every 6 Months | $59.99 | per 6 months |
| Billed Every Year (Standard) | $59.99 | per year |
| Billed Every Year | $89.99 | per year |


## Frequently asked questions

### Is Spark Motion Pro free?

Spark Motion Pro is free to download, with no in-app purchases.

### Is Reflex free?

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

### Which has better reviews, Spark Motion Pro or Reflex?

Reflex is rated higher. Spark Motion Pro averages 4.1 out of 5 from 14 ratings, while Reflex averages 4.3 from 12 ratings.

### Do Spark Motion Pro or Reflex have ads?

Reflex shows ads; Spark Motion Pro does not.

### Which is updated more often, Spark Motion Pro or Reflex?

Spark Motion Pro ships an update every 2 months, and Reflex weekly. Most recently, Spark Motion Pro was updated on June 1, 2026 and Reflex on July 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.*