Comparison

Running Flexibility & Strength vs Run4prs Strength

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

Head to head
About

Running Flexibility & Strength

Enhance your long-distance running performance with targeted strength and flexibility training. This app offers customized weekly workouts and HD instructional videos to build muscle stamina and power, helping you reduce race times. Enjoy audio guidance and motivating trainers for a comprehensive conditioning experience.

Highlights
  • Strength and conditioning for runners
  • Customized weekly workouts
  • HD instructional videos
  • Audio guidance from trainers
  • Offline workout access
  • Fitivity COACHING experience
Features
Read full description

This app focuses on the strength and conditioning component of long distance running. Do this app in conjunction with your current running workouts to optimize your conditioning and help you cut down your race time significantly! Your Fitivity app has multiple training programs in it! Switch between programs that were designed specifically for you! A lot of runners underestimate the value of "non-running" exercise. However, elite runners know that to maximize their running potential and cut down their race time they need to improve their flexibility, balance and strength training. This program isolates certain muscles groups to help you develop greater muscle stamina and power so that your body RARELY gets tired during long distance runs. 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

Run4prs Strength

Enhance your running performance with targeted strength training routines. This app offers guided workouts, progress tracking, and real-time coaching to improve balance, core strength, and injury prevention. Suitable for all fitness levels, it can be done with or without equipment.

Highlights
  • Strength training for runners
  • Balance and core focus
  • Injury prevention exercises
  • Bodyweight or equipment options
  • Workout videos
  • Progress tracking
  • Real-time coach messaging
Features
Read full description

With the Run4prs Strength App, you can improve your strength with workouts developed specifically for runners that target: -Balance -Core Strength -Improved Posture -Injury Prevention -Muscle Joints/Stability -Improved Running Economy How Our Strength Training Works -2-3x per week strength training that takes about 25-30 minutes -Non-complicated exercises good for both beginner and experienced lifters -Videos for each workout -Options for bodyweight or equipment (barbell, dumbbell, resistance bands, etc.) - Schedule workouts and stay committed by beating your personal bests - Track progress towards your goals - Set health and fitness goals - Message your coach in real-time - Get push notification reminders for scheduled workouts and activities - Connect to wearable devices like Apple Watch (synced to Health app), Fitbit and Withings to sync body stats instantly Download the app today!

Screenshots

Running Flexibility & Strength4 screens
Run4prs Strength4 screens

Verdict

The call

The clearest difference is review sentiment: Run4prs Strength at 100% against Running Flexibility & Strength's 17%. Run4prs Strength also leads on in-app purchases (none vs 11) and ads (none vs shown). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Running Flexibility & Strength sells 11 in-app purchases, starting at $0.99 per month. Run4prs Strength asks for nothing beyond the download.

UpkeepUpdate frequency

Running Flexibility & Strength ships an update monthly, Run4prs Strength every 6 weeks. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Running Flexibility & Strength versus Run4prs Strength: the parameters behind the verdict, then further details
ParameterRunning Flexibility & StrengthRun4prs Strength
PriceFreeFree
Rating—4.8 (10 ratings) — better
Positive reviews16.7% of reviews100.0% of reviews — better
Number of ratings—10 — better
Update frequencyMonthly — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.0 — better15.1
Further details — not scored
Size110 MB155 MB
Age rating4+4+
DeveloperLoyal Health & Fitness, Inc.Run4prs Coaching Inc.

Customer experience

Running Flexibility & Strength

Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Run4prs Strength

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

11 purchases

Running Flexibility & Strength

Subscriptions5
  • Monthly Subscription3 Days trial$0.991 Month
  • Fitivity Premium7 Days trial$1.991 Month
  • No ads for one month$1.991 Month
Show 2 more
  • Yearly Subscription$5.991 Year
  • Yearly Subscription7 Days trial$9.491 Year
One-time6
  • Entire Program - 5k Strength$4.99
  • Entire Program - Half Marathon$4.99
  • Entire Program - Marathon Strength$4.99
Show 3 more
  • Entire Program - Runner Flexibility$4.99
  • Purchase levels of all programs$9.99
  • Lifetime Premium Subscription$299.99
None

Run4prs Strength

No in-app purchases

Questions

Is Running Flexibility & Strength free?
Running Flexibility & Strength is free to download, with in-app purchases available.
Is Run4prs Strength free?
Run4prs Strength is free to download, with no in-app purchases.
Do Running Flexibility & Strength or Run4prs Strength have ads?
Running Flexibility & Strength shows ads; Run4prs Strength does not.
Which is updated more often, Running Flexibility & Strength or Run4prs Strength?
Running Flexibility & Strength ships an update monthly, and Run4prs Strength every 6 weeks. Most recently, Running Flexibility & Strength was updated on October 24, 2026 and Run4prs Strength on October 8, 2026.

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