Comparison

PurpleShift vs My Jump Lab

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PurpleShift

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
Read full description

PurpleShift turns your phone into an AI testing lab. Measure your body, time your sprints and track your vertical, then prove it with verified results that coaches and scouts can find. DON'T JUST MEASURE. SCAN IT. Skip the tape measure. PurpleShift's AI Body Scan reads your height, wingspan and hand size from your phone's camera, and shows how confident the AI is in every reading. DON'T JUST TIME IT. BREAK IT DOWN. A stopwatch gives you one number. PurpleShift gives you the whole run, with no timing gates needed. Set your phone up at the side of the field and the AI does the rest. • Start mode measures acceleration from a standing start • Fly mode measures top-end speed from marker to marker • See your time, speed, splits, velocity curve and stride-by-stride breakdown DON'T JUST JUMP. FIX YOUR FORM. A jump test tells you how high you went. PurpleShift also tells you why. Record a standing or approach jump and get your jump height, air time and a form score, plus the extra inches better form could add. GET VERIFIED. GET RANKED. Verified results go on live PurpleShift leaderboards. Filter the rankings by test, camp or athlete and see where you stand: overall, in the 40-yard dash, the 10-yard dash, the 5-10-5 agility shuttle and more. GET SEEN WORLDWIDE Your highlights and verified results show up on the PurpleShift world map, where scouts and coaches explore athletes by location, name, result and score. SHARE YOUR RESULTS Turn any result into a branded, shareable card with your numbers, video and AI metrics, ready for your profile and social. BUILT FOR COACHES & ORGS PurpleShift Flagship gives teams, schools and programs one place to manage their athletes. • Add athletes by pasting emails, uploading a CSV or searching PurpleShift • Track who has tested and who hasn't, and invite the rest to test • Save invite lists and email athletes straight from the app FILTER. SORT. EVALUATE. The Scout Board ranks your roster by verified results, with each athlete's height, weight, position, class and school in one view. Filter and sort to find the right athletes fast.

About

My Jump Lab

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
Read full description

My Jump Lab is the most widely used app for measuring sports performance in a validated way, with more than 400,000 downloads in over 140 countries. It is used daily by coaches, elite athletes, physiotherapists, and researchers all over the world. Unlike generic fitness apps, My Jump Lab is scientifically validated, with accuracy confirmed in more than 20 peer-reviewed international scientific studies. It allows you to assess performance with precision comparable to expensive laboratory equipment, using only your iPhone or iPad. My Jump Lab uses the advanced sensors and camera of your iPhone or iPad to measure performance in a simple, reliable, and validated way, without the need for any additional hardware. For example, vertical jumps and barbell velocity can be measured in real time using artificial intelligence, directly from video captured with your camera. With My Jump Lab, you can assess more than 30 performance tests, covering jumping, strength, sprinting, change of direction, mobility, wellness, force-time analysis, and more — all within a single, integrated platform. TESTS INCLUDED IN THE SUBSCRIPTION: ◉ Jumping: CMJ, SJ, CMJ free arms, DJ, optimal Force-Velocity Profile, RSI-mod, horizontal jump, single leg asymmetry and 10-5 repeated jump tests. ◉ Velocity-based training (VBT): measurement of mean concentric velocity, load-velocity profiling, 1RM estimation, velocity loss and barbell trajectory tracking. ◉ Running and Sprinting: horizontal force-velocity profile, contact/flight times, duty factor, leg stiffness, leg asymmetry, pronation/supination, contralateral pelvic drop, linear sprint time with splits, curved sprint, horizontal deceleration, Sprint Mechanics Assessment Score (S-MAS), 5-0-5, 5+5, V-Cut and Illinois COD tests. ◉ Mobility: range of motion for ankle dorsiflexion, neck flexion/extension, hip flexion and internal rotation, shoulder flexion and internal rotation. ◉ Wellness: sleep, fatigue, stress and soreness questionnaires. ◉ Hamstrings strength: Nordic hamstring breakpoint angle and torque calculation. ◉ Force-time curves: real-time raw force time curves using the accelerometer. ◉ Motion capture: real-time knee valgus and squat depth measurement using markerless motion capture. FEATURES: ▶ Import videos recorded by your athlete or patient to analyze their performance. Ideal for remote testing. ▶ Multi-user. My Jump Lab allows you to create as many users as you want. ▶ iCloud sync: share your data between your devices. ▶ History. Save as many tests as you want for each user to analyze their evolution. Export your data to a CSV file. Ideal for research or academic work. ▶ Elegant and intuitive design (compatible with dark mode). ▶ Universal app: share your subscription between your iPhone, iPad and Mac. Note: My Jump Lab works best with slow motion videos. The motion capture feature requires the A12 chip available on devices such as iPhone XR or higher or iPad Pro 2018 or higher. Try the app for free for 7 days. A monthly, yearly or forever subscription is required to access all the app's functionalities and tests once the 7-day trial period has passed. What does the subscription include? Full access to all tests available in My Jump Lab, as well as all current and future features. When will I be charged? When the free 7-day period is over, your credit card will be charged for the period you have chosen through your Apple account. PRIVACY POLICY AND TERMS OF USE Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: This app does not collect, store or share any of your personal data. Visit www.myjumplabpro.com/#privacy for more details.

Screenshots

PurpleShift4 screens
My Jump Lab4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
PurpleShift versus My Jump Lab: the parameters behind the verdict, then further details
ParameterPurpleShiftMy Jump Lab
PriceFreeFree
Rating4.8 (10 ratings) — better4.6 (255 ratings)
Positive reviews50.0% of reviews59.0% of reviews — better
Number of ratings10255 — better
Update frequencyWeekly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.0.015.0 — better
Further details — not scored
Size595 MB89 MB
Age rating4+4+
DeveloperPURPLESHIFT LLCCarlos Balsalobre

Customer experience

PurpleShift

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

My Jump Lab

All ratings250 ratings
Positive90.0%
Neutral2.8%
Negative7.2%
Written reviews100 reviews
Positive59.0%
Neutral9.0%
Negative32.0%

Bugs and requests

PurpleShift

Not enough reviews yet to summarise bugs or requests.

My Jump Lab

Reported bugs

14 issues
  • 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
Show 9 more
  • Frame-by-frame playback stuttering on high fps videos
  • App closes unexpectedly during velocity-based training
  • MyRoom feature won't open
  • App crashes after recent updates
  • Subscription access not restored after reinstall
  • Lifetime purchase access not recognized
  • Horizontal jump detection inconsistent
  • Countermovement jump height readings inaccurate
  • Pull-up exercise detection failure

Requested features

11 requests
  • More comprehensive video tutorials
  • Desktop app synchronization
  • MySprint integration
  • PDF export of assessment reports
  • Additional exercise templates for encoder
Show 6 more
  • Manual frame-by-frame analysis mode
  • Better ROM (Range of Motion) guidance
  • Debit card payment option
  • Improved angle and measurement tools
  • Default v1RM reset functionality
  • Video upload from gallery for angle drawing

In-app purchases

15 purchases

PurpleShift

Subscriptions6
  • Tier 1 Monthly$9.991 Month
  • Tier 2 Monthly Subscription$39.991 Month
  • Tier 3 Monthly Subscription$49.991 Month
Show 3 more
  • Tier 1 Yearly Subscription$109.991 Year
  • Tier 2 Yearly Subscription$459.991 Year
  • Tier 3 Yearly Subscription$579.991 Year
One-time9
  • Expedite Verification$0.99
  • Single PurpleShift Lab Coin$1.99
  • Single Verification Coins$4.99
Show 6 more
  • 10 Pack PurpleShift Lab$9.99
  • Unlimited Verifications Weekly$19.99
  • Unlimited Sprint Coins WK$24.99
  • 10 Pack Verification Coins$39.99
  • Unlimited Verification Monthly$49.99
  • Unlimited Sprint Coins Monthly$59.99
3 purchases

My Jump Lab

Subscriptions2
  • Premium- 1 month7 Days trial$5.991 Month
  • Premium - 1 year7 Days trial$39.991 Year
One-time1
  • Premium - Lifetime$105.99

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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