JAWKU vs Sprint Projections App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Measure sprint speed
- Measure agility drills
- Measure vertical jump height
- Measure reaction time
- Track performance history
- Visualize personal records
- Access training content
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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
Sprint Projections App
Calculate precise running time projections based on distance, known times, and conditioning levels. Adjust for indoor, outdoor, and hybrid environments to optimize training and performance goals for athletes and coaches.
- Project running times for various distances
- Adjust projections based on conditioning levels
- Calculate indoor, outdoor, and hybrid times
- Tailored for athletes and coaches
- Maximize training efficiency
- Accurate and reliable projections
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Sprint Projection is the essential app for athletes and coaches alike, providing precise time projections based on your training conditions. Whether you're an amateur runner or a seasoned pro, this app helps you take your training to the next level by calculating what you should be running based on your selected distance, known time, and conditioning level. Key Features: • Project Times with Ease: Simply input your known distance and time to project the time to run other distances. • Conditioning Levels: Choose from Low, Medium, or High conditioning levels to see how your performance matches up. • Indoor, Outdoor, & Hybrid Projections: Sprint Projections lets you calculate indoor times, outdoor times, and indoor-to-outdoor adjustments, so you're always prepared for any environment. • Tailored for Athletes & Coaches: This app isn't just fun for runners; it's a vital tool for coaches looking to adjust training regimens based on real-time projections and performance goals. Why Sprint Projections? • Maximize Training: Coaches can use Sprint Projections to fine-tune their athlete's performance targets, providing the data needed to adjust workout plans effectively. • Accurate & Reliable: The app uses real-world data to deliver time projections that are both accurate and practical, ensuring you're always ready to push your limits. • Fun & Motivational: Whether you're tracking your own performance or setting new goals, Sprint Projections makes improving your running times exciting! App Access: $2.99 Initial Download with 30 Day Trial (Full Featured Access). The Sprint Projections APP will be disabled after Initial 30 day trial. You will need to Subscribe to re-enable App. $1.99 Monthly Subscription Fee. Cancel at anytime. Private Policy: https://www.AlvarezAE.com/spapp/spapp.html EULA Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: JAWKU at Free against Sprint Projections App's $2.99. JAWKU also leads on in-app purchases (none vs 1) and ratings volume (244 vs 2). Sprint Projections App's advantage is rating (5.0 vs 4.0) and update cadence (every 2 weeks vs every 2 months). On ads, device support 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
JAWKU is free to download; Sprint Projections App costs $2.99 up front. Sprint Projections App sells 1 in-app purchase, starting at $1.99 per month. JAWKU asks for nothing beyond the download.
Sprint Projections App holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: JAWKU has 244 ratings behind it against 2, so its average is the more settled of the two.
JAWKU ships an update every 2 months, Sprint Projections App every 2 weeks. The most recent releases landed on August 2, 2026 and June 7, 2026 respectively.
| Parameter | JAWKU | Sprint Projections App |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.0 (244 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 67.7% of reviews | — |
| Number of ratings | 244 — better | 2 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Brian Frohlich | Alan Alvarez |
Customer experience
JAWKU
Sprint Projections App
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
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- 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 moreShow fewer
- Camera rotation functionality
- Offline functionality without internet requirement
- Better handling of crowded track environments
Sprint Projections App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JAWKU
No in-app purchases
Sprint Projections App
- Sprint Projections App$1.991 Month








