Comparison

JAWKU vs Sprint Timer

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 Timer

This app functions as a starter and stopwatch for track events. It allows users to customize starting commands and measure race times, with options for randomized timing and saving recorded data. It's ideal for practice sessions or when official starters are unavailable.

Highlights
  • Customizable start commands
  • Randomized SET to pistol timing
  • Save and view measured times
  • Adjustable distance settings
  • Color customization for timer and background
Features
Read full description

Starter & stopwatch app for track. It can be used for practicing the starting race command or to help you measure your time. Please use it for club activities or when there is no one in charge of starting the race. ● Basic functions 1. Starter You can set the time from ON YOUR MARK to SET and from SET to pistol sound as you like. The time from SET to pistol sound can also be randomized. 2. Time recording Measured times can be saved. Saved times can be viewed by date. 3. Distance setting Tap the distance to change it. In the initial display, 100m is set. 4. Color settings The background color and timer color can be changed.

Screenshots

JAWKU4 screens
Sprint Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: JAWKU at none against Sprint Timer's 2. JAWKU also leads on ads (none vs shown) and ratings volume (244 vs 4). Sprint Timer's advantage is rating (4.3 vs 4.0) and update cadence (monthly vs every 2 months). On price, review sentiment 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. Sprint Timer sells 2 one-off in-app purchases. JAWKU asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sprint Timer holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: JAWKU has 244 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 68% of JAWKU's written reviews are positive against 75% of Sprint Timer's.

UpkeepUpdate frequency

JAWKU ships an update every 2 months, Sprint Timer monthly. The most recent releases landed on August 2, 2026 and September 12, 2026 respectively.

Scorecard7 real differences · 3 level
JAWKU versus Sprint Timer: the parameters behind the verdict, then further details
ParameterJAWKUSprint Timer
PriceFreeFree
Rating4.0 (244 ratings)4.3 (4 ratings) — better
Positive reviews67.7% of reviews75.0% of reviews — better
Number of ratings244 — better4
Update frequencyEvery 2 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.613.0 — better
Further details — not scored
Size31 MB34 MB
Age rating4+17+
DeveloperBrian FrohlichNAOYA ONO

Customer experience

JAWKU

All ratings244 ratings
Positive73.0%
Neutral3.7%
Negative23.4%
Written reviews65 reviews
Positive67.7%
Neutral6.2%
Negative26.2%

Sprint Timer

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

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 Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

JAWKU

No in-app purchases

2 purchases

Sprint Timer

One-time2
  • Support Developer$0.99
  • Remove ads$9.99

Questions

Is JAWKU free?
JAWKU is free to download, with no in-app purchases.
Is Sprint Timer free?
Sprint Timer is free to download, with in-app purchases available.
Which has better reviews, JAWKU or Sprint Timer?
Sprint Timer is rated higher. JAWKU averages 4.0 out of 5 from 244 ratings, while Sprint Timer averages 4.3 from 4 ratings.
Do JAWKU or Sprint Timer have ads?
Sprint Timer shows ads; JAWKU does not.
Which is updated more often, JAWKU or Sprint Timer?
JAWKU ships an update every 2 months, and Sprint Timer monthly. Most recently, JAWKU was updated on August 2, 2026 and Sprint Timer on September 12, 2026.

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