Comparison

Plank Workout Challenge vs R.I.O

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

Head to head
About

Plank Workout Challenge

This app offers a 30-day challenge with various plank exercises to strengthen your core, tone your abs, and improve posture. It caters to beginners and advanced users with adjustable holding times and exercise variations for effective home workouts.

Highlights
  • 30-day plank exercise program
  • Static and dynamic plank variations
  • Core and abs toning
  • Posture improvement
  • Beginner to advanced levels
  • Calorie burning
Features
Read full description

Plank workout app provides a core strength exercise for the whole body to do at home. These plank exercises help to lose weight and strengthen your deep inner core. This app includes challenging and effective exercises and methods to tone your core and back. 30 days of plank exercises and multiple variations like static and dynamic, greatly help to lose weight, build a stronger core and flat abs. Spend a few minutes a day to burn calories, improve your fitness and posture. Plank app includes basic and advanced levels. A beginner can start with the basic plank. Practice each workout holding 30 seconds, gradually add more seconds to get the best results. Move on to advance variations which will add additional challenges to tone abs, back, and shoulder. Subscription Terms and Details - Subscribe to get unlimited access to all features. - Upon confirmation of purchase, the payment will be charged to the iTunes account. - Until you turn off the auto-renew at least 24 hours before the end of the current period it will be automatically renewed. - If you decide to turn off auto-renewal, you can turn it off maybe by going to the account settings after purchase. -As per the policy, cancellation of the current subscription is not allowed during the active subscription period. Once purchased, refunds will not be returned for any unused portion of the subscription period. -The renewal amount will be charged from the account within 24 hours before the end of the current period. Terms of use - https://www.ohealthappsstudio.com/terms-of-use/ Privacy policy - https://www.ohealthappsstudio.com/privacy-policy/

About

R.I.O

Features
Read full description

RIO Hospitals is a state-of-the-art-Hospital Information Management System (HIMS) which is comprehensive enterprise software that covers all aspect management and operations of small, medium and large hospitals. It enables healthcare providers to improve the operational effectiveness, reduce costs, reduce medical errors and enhance delivery of quality with care.

Screenshots

Plank Workout Challenge4 screens
R.I.O4 screens

Verdict

The call

The clearest difference is in-app purchases: R.I.O at none against Plank Workout Challenge's 4. R.I.O also leads on ads (none vs shown) and update cadence (every 9 days vs every 5 months). On price, 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. Plank Workout Challenge sells 4 in-app purchases, starting at $3.99 per 7 days. R.I.O asks for nothing beyond the download.

UpkeepUpdate frequency

Plank Workout Challenge ships an update every 5 months, R.I.O every 9 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
Plank Workout Challenge versus R.I.O: the parameters behind the verdict, then further details
ParameterPlank Workout ChallengeR.I.O
PriceFreeFree
Rating4.8 (129 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings129 — better—
Update frequencyEvery 5 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size120 MB125 MB
Age rating4+17+
Developerohealth apps studioIDEAEDU CONSULTANT TECHNOLOGIES PRIVTAE LIMITED

In-app purchases

4 purchases

Plank Workout Challenge

Subscriptions3
  • Premium Features$3.997 Days
  • Premium Features$9.991 Month
  • Premium Features3 Days trial$29.991 Year
One-time1
  • Premium Workout$4.99
None

R.I.O

No in-app purchases

Questions

Is Plank Workout Challenge free?
Plank Workout Challenge is free to download, with in-app purchases available.
Is R.I.O free?
R.I.O is free to download, with no in-app purchases.
Do Plank Workout Challenge or R.I.O have ads?
Plank Workout Challenge shows ads; R.I.O does not.
Which is updated more often, Plank Workout Challenge or R.I.O?
Plank Workout Challenge ships an update every 5 months, and R.I.O every 9 days. Most recently, Plank Workout Challenge was updated on October 7, 2026 and R.I.O on October 14, 2026.

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