Comparison

Sprinters Speed Training vs Jacks

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

Head to head
About

Sprinters Speed Training

Enhance your sprinting performance with tailored exercise programs. Optimize starts, strides, and leg turnover for race day. Features audio guidance, instructional videos, and offline workout options.

Highlights
  • Personalized weekly workouts
  • Audio guidance from digital trainer
  • HD instructional videos
  • Offline workout capability
  • DJ-mixed coaching sessions
  • Multiple speed training programs
Features
Read full description

Use this app to get faster! Any sprinter knows that even a fraction of a second can be the difference between losing a race. A sprinter can lose a race for many reasons, but the MOST common reason is they are NOT properly conditioned. This exercise program will give you that edge so that you are ready come race day. This program focuses on getting you in the BEST sprinting shape of your life - helping you optimize your starts off the blocks, full sprinting strides, and leg turnover rate. Your Fitivity app has multiple training programs in it for speed training! Switch between programs that were designed specifically for you! In addition to your weekly workouts, try out Fitivity COACHING! Coaching is a highly engaging exercise experience that combines mixes by DJ's and super motivating trainers to push you through workouts. • Audio guidance from your personal digital trainer • Customized workouts designed for you each week. • For each workout you are provided with HD instructional videos to preview & learn training techniques. • Stream workouts online or do workouts offline. Subscription Details For your convenience, subscription charges will be processed through your iTunes account, ensuring a seamless and secure payment experience. You can manage your subscription at any time, giving you full control over your membership. Should you decide to cancel, simply do so at least 24 hours before the end of your current subscription period to avoid auto-renewal. • Payment is charged to your iTunes account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can turn off the auto-renew subscription from your device settings. • Account will be charged for renewal within 24 hours before the end of the current period. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. To manage your subscription or turn off auto-renewal on your iPhone: 1. Open the Settings app 2. Tap your name or Apple ID 3. Tap Subscriptions 4. Tap the subscription you want to manage 5. Use the options to manage your subscription Privacy Policy and Terms of Use: https://www.loyal.app/privacy-policy

About

Jacks

Track and log your combat sports training, including sparring sessions and workouts. Connect with gyms and training partners, and monitor your progress over time. This app helps you stay accountable and grow as a fighter.

Highlights
  • Log sparring sessions
  • Track training history
  • Tag gym locations
  • Search for gyms and opponents
  • Build personal training record
  • Share workout data
Features
Read full description

Jacks is the only activity tracking app built specifically for combat sports. Whether you're into Boxing, MMA, Jiu-Jitsu, or Muay Thai, Jacks helps you track, log, and share your sparring and workouts like never before. Go beyond a basic ring timer — with Jacks, you can: - Log every sparring session and build a personal training record. - Track your training history, including who you sparred with and where. - Tag your gym, so you always know where you’ve been putting in work. - Search for gyms and opponents, making it easy to connect, train while traveling, and level up your game. Jacks is your training partner outside the ring — helping you stay accountable, measure your progress, and grow as a fighter. View our privacy policy and conditions at the following link: https://thejacks.app/privacy-policy View our terms of use at the following link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sprinters Speed Training4 screens
Jacks4 screens

Verdict

The call

The clearest difference is review sentiment: Jacks at 100% against Sprinters Speed Training's 0%. Jacks also leads on rating (5.0 vs 3.0) and ads (none vs shown). On price, update cadence, in-app purchases and monetization model 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. Sprinters Speed Training sells 11 in-app purchases, starting at $0.99 per month and Jacks sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Jacks holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Jacks has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Sprinters Speed Training's written reviews are positive against 100% of Jacks's.

UpkeepUpdate frequency

Sprinters Speed Training ships an update every 5 weeks, Jacks every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Sprinters Speed Training versus Jacks: the parameters behind the verdict, then further details
ParameterSprinters Speed TrainingJacks
PriceFreeFree
Rating3.0 (2 ratings)5.0 (13 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings213 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size110 MB39 MB
Age rating4+4+
DeveloperLoyal Health & Fitness, Inc.Civil Saint LLC

Customer experience

Sprinters Speed Training

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Jacks

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

11 purchases

Sprinters Speed Training

Subscriptions5
  • Monthly Subscription3 Days trial$0.991 Month
  • Fitivity Premium7 Days trial$1.991 Month
  • ad Free One Month$1.991 Month
Show 2 more
  • Yearly Subscription$5.991 Year
  • Yearly Subscription7 Days trial$9.491 Year
One-time6
  • Entire Program - Increase Sprint Speed Strength$2.99
  • Entire Program - Elite Sports Speed & Footwork$2.99
  • Entire Program - Runner Flexibility$2.99
Show 3 more
  • Entire Program - Football Speed & Agility$2.99
  • Purchase levels of all programs$7.99
  • Lifetime Premium Subscription$299.99
2 purchases

Jacks

Subscriptions2
  • Monthly$0.991 Month
  • Annual$7.991 Year

Questions

Is Sprinters Speed Training free?
Sprinters Speed Training is free to download, with in-app purchases available.
Is Jacks free?
Jacks is free to download, with in-app purchases available.
Which has better reviews, Sprinters Speed Training or Jacks?
Jacks is rated higher. Sprinters Speed Training averages 3.0 out of 5 from 2 ratings, while Jacks averages 5.0 from 13 ratings.
Do Sprinters Speed Training or Jacks have ads?
Sprinters Speed Training shows ads; Jacks does not.
Which is updated more often, Sprinters Speed Training or Jacks?
Sprinters Speed Training ships an update every 5 weeks, and Jacks every 3 weeks. Most recently, Sprinters Speed Training was updated on October 24, 2026 and Jacks on October 28, 2026.

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