# Running Flexibility & Strength vs Run4prs Strength

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.

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.

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.

## The numbers

| Metric | Running Flexibility & Strength | Run4prs Strength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (10 ratings)](https://appshunter.io/ios/app/run4prs-strength/id1560040634/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 110 MB | 155 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Loyal Health & Fitness, Inc.](https://appshunter.io/developer/1088263310) | [Run4prs Coaching Inc.](https://appshunter.io/developer/1560040636) |

## What reviewers say

### Running Flexibility & Strength

[App page](https://appshunter.io/ios/app/running-flexibility-and-strength/id739501502)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Fitivity Premium | $1.99 | per month |
| No ads for one month | $1.99 | per month |
| Yearly Subscription | $5.99 | per year |
| Yearly Subscription | $9.49 | per year |
| Entire Program - 5k Strength | $4.99 | one-time |
| Entire Program - Half Marathon | $4.99 | one-time |
| Entire Program - Marathon Strength | $4.99 | one-time |
| Entire Program - Runner Flexibility | $4.99 | one-time |
| Purchase levels of all programs | $9.99 | one-time |
| Lifetime Premium Subscription | $299.99 | one-time |


### Run4prs Strength

[App page](https://appshunter.io/ios/app/run4prs-strength/id1560040634)

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:** Apple Wallet

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*