Comparison

The Running App vs Flex Studioz

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

Head to head
About

The Running App

Features
Read full description

High-Intensity interval cardio is touted as the better way to lose weight and tone up without shredding muscle, as compared to the traditional 20min-1hr nonstop jog. Also, it circumvents the mental endurance you have to deal with when jogging. Hence, we built HIIT Runner to do one thing; to manage your time loops during interval cardio. You have a set amount of minutes to choose from and you can split it into seconds anyhow you want it between running and walking. Using alerts and voice prompts, HIIT Runner coaches you through your sessions so that you can have a productive workout every time you step out to run. No overbearing features, no gimmicks, just the most important thing; Run!

About

Flex Studioz

Features
Read full description

Flex Studio is the regions largest assisted stretching and preventative physiotherapy studio, offering a unique wellness concept, injury preventing and assisted stretching sessions. We believe that stretching is a vital component of a balanced and healthy lifestyle. Flex Studio has built a strong reputation for personalized care and innovative wellness solutions. Whether you are an athlete, office worker, working or stay-at-home mom, wellness enthusiast, senior, junior, or just looking to move better, with one single-minded promise, Stretching Lives, Everyday.

Screenshots

The Running App3 screens
Flex Studioz3 screens

Verdict

The call

The clearest difference is iOS requirement: The Running App at 10.0 against Flex Studioz's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.

Scorecard1 real difference ยท 5 level
The Running App versus Flex Studioz: the parameters behind the verdict, then further details
ParameterThe Running AppFlex Studioz
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS10.0 โ€” better15.1
Further details โ€” not scored
Size59 MB53 MB
Age rating4+17+
DeveloperAppendiQs IncFLEX STUDIO FITNESS CLUB L.L.C

In-app purchases

None

The Running App

No in-app purchases

None

Flex Studioz

No in-app purchases

Questions

Is The Running App free?
The Running App is free to download, with no in-app purchases.
Is Flex Studioz free?
Flex Studioz is free to download, with no in-app purchases.
Do The Running App or Flex Studioz have ads?
Neither The Running App nor Flex Studioz shows ads.
Which is updated more often, The Running App or Flex Studioz?
The Running App ships an update every 2 months, and Flex Studioz every 2 months. Most recently, The Running App was updated on September 29, 2026 and Flex Studioz on October 1, 2026.

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