# PurpleShift vs My Jump Lab

The clearest difference is monetization model: PurpleShift at free with in-app purchases against My Jump Lab's subscription. PurpleShift also leads on update cadence (weekly vs every 3 weeks). My Jump Lab's advantage is ads (none vs shown) and ratings volume (255 vs 10). On price, rating, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. PurpleShift sells 15 in-app purchases, starting at $9.99 per month and My Jump Lab sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

PurpleShift holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: My Jump Lab has 255 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 50% of PurpleShift's written reviews are positive against 59% of My Jump Lab's, so the app with the better star average is not the one people write more warmly about.

PurpleShift ships an update weekly, My Jump Lab every 3 weeks. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PurpleShift | My Jump Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/purpleshift/id1458774155/reviews)** | [4.6 (255 ratings)](https://appshunter.io/ios/app/my-jump-lab/id1554077178/reviews) |
| Number of ratings | 10 | **255** |
| Positive reviews | 50.0% of reviews | **59.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 595 MB | 89 MB |
| Requires iOS | 16.0.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [PURPLESHIFT LLC](https://appshunter.io/developer/1458774154) | [Carlos Balsalobre](https://appshunter.io/developer/1075902286) |

## What reviewers say

### PurpleShift

[App page](https://appshunter.io/ios/app/purpleshift/id1458774155)

This app uses AI to analyze athletic movements, turning your phone into a biomechanics lab. It provides detailed scores and insights into performance categories like takeoff symmetry and explosive timing, helping athletes and coaches improve. Offers a free option with ads or a premium subscription for unlimited ad-free analysis.

**Highlights:** AI-driven vertical jump analysis, Form score analysis across 7 categories, Potential tab with perfect form calculator, Professional video tools (protractor, scrubber), Smart athlete management (FaceID, multi-athlete), Data export for coaching analysis

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tier 1 Monthly | $9.99 | per month |
| Tier 2 Monthly Subscription | $39.99 | per month |
| Tier 3 Monthly Subscription | $49.99 | per month |
| Tier 1 Yearly Subscription | $109.99 | per year |
| Tier 2 Yearly Subscription | $459.99 | per year |
| Tier 3 Yearly Subscription | $579.99 | per year |
| Expedite Verification | $0.99 | one-time |
| Single PurpleShift Lab Coin | $1.99 | one-time |
| Single Verification Coins | $4.99 | one-time |
| 10 Pack PurpleShift Lab | $9.99 | one-time |
| Unlimited Verifications Weekly | $19.99 | one-time |
| Unlimited Sprint Coins WK | $24.99 | one-time |
| 10 Pack Verification Coins | $39.99 | one-time |
| Unlimited Verification Monthly | $49.99 | one-time |
| Unlimited Sprint Coins Monthly | $59.99 | one-time |


### My Jump Lab

[App page](https://appshunter.io/ios/app/my-jump-lab/id1554077178)

This app scientifically measures athletic performance using your device's camera and sensors. It offers over 30 validated tests for jumping, strength, sprinting, and more, providing lab-grade accuracy without extra hardware. Ideal for coaches, athletes, and researchers to track progress and analyze performance.

**Highlights:** Validated sports performance measurement, Over 30 performance tests, Jumping, strength, and sprinting analysis, Velocity-based training (VBT), Motion capture for real-time analysis, Multi-user support, Data export for research

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium- 1 month | $5.99 | per month |
| Premium - 1 year | $39.99 | per year |
| Premium - Lifetime | $105.99 | one-time |

**What reviewers like**

- ✅ Scientifically validated measurements
- 📊 Comprehensive testing capabilities (CMJ, SJ, VBT, etc.)
- 💪 Excellent for athletes, coaches, and sports scientists
- 🎯 Accurate vertical jump and performance tracking
- 📱 User-friendly and intuitive interface

**What reviewers complain about**

- 🐛 Frequent app crashes during tests
- 📹 Camera detection issues with exercises
- ❌ Inconsistent measurement accuracy
- 🔄 Synchronization problems between devices
- ⚠️ Limited free trial functionality

**Reported bugs**

- App crashes during complete test (3rd-4th attempt)
- CMJ automatic AI detection fails repeatedly
- Camera not activating in real-time recording
- Force-velocity profile graph not displaying
- Velocity measurements inconsistent between real-time and graph

**Requested features**

- More comprehensive video tutorials
- Desktop app synchronization
- MySprint integration
- PDF export of assessment reports
- Additional exercise templates for encoder


## Frequently asked questions

### Is PurpleShift free?

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

### Is My Jump Lab free?

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

### Which has better reviews, PurpleShift or My Jump Lab?

PurpleShift is rated higher. PurpleShift averages 4.8 out of 5 from 10 ratings, while My Jump Lab averages 4.6 from 255 ratings.

### Do PurpleShift or My Jump Lab have ads?

PurpleShift shows ads; My Jump Lab does not.

### Which is updated more often, PurpleShift or My Jump Lab?

PurpleShift ships an update weekly, and My Jump Lab every 3 weeks. Most recently, PurpleShift was updated on October 24, 2026 and My Jump Lab on November 3, 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.*