Comparison

JAWKU vs Sprint Speed Calculator

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

Head to head
About

JAWKU

This app measures athletic performance metrics like speed, agility, and reaction time with a wearable sensor. It allows athletes to track progress, visualize improvements, and access training content to enhance their performance.

Highlights
  • Measure sprint speed
  • Measure agility drills
  • Measure vertical jump height
  • Measure reaction time
  • Track performance history
  • Visualize personal records
  • Access training content
Features
Read full description

Get Quick. Get Fast. Get JAWKU Speed. This app requires a JAWKU Speed sensor. Numbers don’t lie. And JAWKU Speed provides the key performance data across speed, agility and reaction time, with unrivaled accuracy in wearable technology. We changed the game. We're still changing it. JAWKU Speed was intentionally designed with you, the athlete, as our primary focus. Providing a meaningful experience, supported with accurate data capture hasn't existed like this, until now. The best part - while JAWKU is in a class of it's own, it's as simple to use as a stopwatch. YOUR PERFORMANCE UNLEASHED The JAWKU Speed App brings the entire experience to life. And setting it up is simple! Out of the box, the app will walk you through pairing and in a matter of minutes, you'll be unleashing an experience unlike any other. It's all there to help you understand how you're tracking and making good on all of that training you've been committed to. Let's take a closer look at the main features. TEST + Measure sprint speed + Measure agility (standardized tests or build your own drill) + Measure vertical jump height (NEW) + Measure reaction time off the blocks (in audible mode) + Select your distance and start mode (movement or audible) and you're ready to go TRAIN + Train with purpose. From within the app, you'll have access to the latest in training content from our partner, STACK, where athletes get better TRACK + Track your performance history over time + Visualize your performance against your previous times and personal records + Learn how your reaction time off the blocks is affecting your overall time. Seeing is believing. MY JAWKU + Manage everything here + Check sensor connectivity + Adjust/update your personal profile and settings

About

Sprint Speed Calculator

Features
Read full description

SprintSpeed: Time Every Sprint Like a Track Meet SprintSpeed helps you measure and track sprint performance without needing a coach, a partner, or expensive timing gates. FREE FOREVER • Manual, countdown, and reaction-start timers • Sprint history with stats and personal bests • Structured training workouts and drills • Metric or imperial units, any distance SPRINTSPEED PRO • Camera Gate: your phone is the timing gate. On its own, the camera clocks you through the same gate twice, ideal for out-and-backs and laps. Pair a second phone and you get a true start line and finish line, both automatic. Prop them up, arm them, and run. • Unlimited sprint history • Share clean session cards New to Camera Gate? Your first 10 runs are free, no subscription needed. Built for track & field, football, American football, handball, tennis, and any sport where every tenth of a second counts. Optionally sign in with Apple to personalize your profile name. Sprint history, stats, and personal bests are always stored locally on your device, signed in or not. SprintSpeed Pro is offered as an auto-renewing monthly or annual subscription, or a one-time lifetime purchase. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and your account will be charged for renewal within that 24-hour window. Manage or cancel anytime in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sprintspeed.app/privacy/

Screenshots

JAWKU4 screens
Sprint Speed Calculator4 screens

Verdict

The call

The clearest difference is update cadence: Sprint Speed Calculator at every 3 days against JAWKU's every 2 months. JAWKU's advantage is iOS requirement (15.6 vs 17.5). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

JAWKU ships an update every 2 months, Sprint Speed Calculator every 3 days. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 8 level
JAWKU versus Sprint Speed Calculator: the parameters behind the verdict, then further details
ParameterJAWKUSprint Speed Calculator
PriceFreeFree
Rating4.0 (244 ratings) — better—
Positive reviews67.7% of reviews—
Number of ratings244 — better—
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.5
Further details — not scored
Size31 MB13 MB
Age rating4+4+
DeveloperBrian FrohlichVegard Alexander Halkjelsvik

Bugs and requests

JAWKU

Reported bugs

10 issues
  • Sensor disconnects at longer ranges (100+ meters)
  • Times not recorded despite successful setup
  • Audible mode not working on iPhone 13
  • Jump clip registration fails
  • Device won't charge or pair
Show 5 more
  • App loading screens freeze after Bluetooth connection
  • Sensor not detected despite proximity
  • Timer stops before athlete finishes event
  • Inconsistent performance across different iOS versions
  • App hasn't been updated in multiple years

Requested features

8 requests
  • Multi-athlete simultaneous timing capability
  • Continuous video recording with manual time selection
  • Better documentation and instructional videos
  • Improved app updates and maintenance
  • Better Bluetooth range extension
Show 3 more
  • Camera rotation functionality
  • Offline functionality without internet requirement
  • Better handling of crowded track environments

Sprint Speed Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

JAWKU

No in-app purchases

None

Sprint Speed Calculator

No in-app purchases

Questions

Is JAWKU free?
JAWKU is free to download, with no in-app purchases.
Is Sprint Speed Calculator free?
Sprint Speed Calculator is free to download, with no in-app purchases.
Do JAWKU or Sprint Speed Calculator have ads?
Neither JAWKU nor Sprint Speed Calculator shows ads.
Which is updated more often, JAWKU or Sprint Speed Calculator?
JAWKU ships an update every 2 months, and Sprint Speed Calculator every 3 days. Most recently, JAWKU was updated on October 13, 2026 and Sprint Speed Calculator on October 15, 2026.

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