Comparison

The 30 Day Plank Challenge vs Plank Timer | Dr. Simplicity

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

Head to head
About

The 30 Day Plank Challenge

This app guides users through a 30-day challenge to strengthen their core with plank exercises. It helps improve balance, posture, and tone abs, glutes, and hamstrings without any equipment. Suitable for all ages and fitness levels.

Highlights
  • 30-day plank challenge
  • Records training progress
  • 5 total challenges
  • Create custom challenges
  • Step-by-step intensity increase
  • Track best plank attempts
  • Beginner and intermediate plans
Features
Read full description

Do The 30-Day Plank Challenge! Plank exercises are some of the overall best exercises you can do to strengthen your entire core. And keep in mind, your core includes a whole lot more than just your abs. Perfect your plank (or learn to hold one for the first time) to tone your middle and boost your balance and posture in just four weeks. A strong core is the foundation of a strong body. Think about it: A tree would fall if its trunk weren't solid and stable. Doing core work isn't just about your middle, either; having a strong core will make you a better runner, surfer, or yogi (or whatever activity you like to do) while improving your posture and balance. Working your core can also protect you from low-back pain — and yes, it’ll tone your abs, too. One of the best core ab exercises out there is the plank. Not only will planking work wonders for your abs, glutes and hamstrings, you'll also find that it sharpens up your mental endurance too. We created an easy-to-follow 30-day plank challenge that will get you the benefits of a strong ab core in no time. Your goal will be to maintain proper form the entire time you are holding up your own body weight. This means you will keep your whole body in a straight line, from your heels to your hips to your shoulders. The Plank Challenge is suitable for both men and women of any ages. No equipment or special type of machinery needed, just your body. The Plank is a form of bodyweight workout that will never go away, because it's so powerful and requires a small amount of time on your part. Plank helps you to achieve substantial results in a very short span of time. In our case, just 1 month of training. Most times the simplest exercise move results in the greatest gains for your fitness demands and plank falls into that category. Plank is good for sculpting your core, but not only that, it works your butt and hamstrings as well. This 30 day plank challenge is perfect for those of you who want to get a smaller waist and sexy flat tummy. Features: - Records training progress automatically - A total of 5 challenges - Create your own challenge - Increases exercise intensity & difficulty step by step - Keep track of your best attempts for each planking exercise - Multiple workout plans suitable for beginners and intermediate Surpass your fitness goals by following this 30-day weight plank challenge that'll transform your body. Download now!

About

Plank Timer | Dr. Simplicity

Features
Read full description

It is a timer app that provides users different types of plank workouts and related knowledge. FEATURES 【Timer】 Count down for you plank exercise 【9 types of plank】 • Face down: Full plank, Elbow plank, Superman plank • Face up: Reverse plank, Bridge plank • Face side: Side plank, Side plank (leg up) • Dynamic: Military plank, Walking plank 【Knowledge database】 • knowledge about benefits of plank exercise • knowledge about related muscles • knowledge about training plan and format 【Calendar】 Read workout history with calendar 【"Simplicity" as a feature】 We know that you want a simple and reliable app that does what it claims without overcomplicated features and logics. That's why "Plank Timer" is made so clean and straight-forward. WHO CAN USE This app can be used by men and women of all ages, from beginner to advanced planker Try us if you agree with one of these statements • you want a simple app • you are tired of over-complicated apps and features • you feel anxious and compulsive when using aggressive fitness apps • you like free apps! ABOUT PLANK WORKOUT Plank is one of the best exercises you can find that builds core muscles (abs), sculpt waistline and improve posture. With the rich amount of plank variations, you can also engage your back, arms, shoulders, glutes and hamstrings. The best part is that you can do it at home with no equipment required at all. --

Screenshots

The 30 Day Plank Challenge4 screens
Plank Timer | Dr. Simplicity4 screens

Verdict

The call

The clearest difference is in-app purchases: Plank Timer | Dr. Simplicity at none against The 30 Day Plank Challenge's 11. Plank Timer | Dr. Simplicity also leads on update cadence (every 5 days vs every 5 months). On price, ads, 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. The 30 Day Plank Challenge sells 11 one-off in-app purchases. Plank Timer | Dr. Simplicity asks for nothing beyond the download.

UpkeepUpdate frequency

The 30 Day Plank Challenge ships an update every 5 months, Plank Timer | Dr. Simplicity every 5 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
The 30 Day Plank Challenge versus Plank Timer | Dr. Simplicity: the parameters behind the verdict, then further details
ParameterThe 30 Day Plank ChallengePlank Timer | Dr. Simplicity
PriceFreeFree
Rating3.4 (5 ratings) — better—
Positive reviews3.2% of reviews—
Number of ratings5 — better—
Update frequencyEvery 5 monthsEvery 5 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.3 — better
Further details — not scored
Size36 MB9 MB
Age rating4+4+
DeveloperStefan RoobolSaihou Ieong

In-app purchases

11 purchases

The 30 Day Plank Challenge

One-time11
  • Remove Ads$0.99
  • Create Workouts$0.99
  • Plank Variations$1.99
Show 8 more
  • For beginners$1.99
  • 90-Day Planking$1.99
  • Tone your Abs, Butt & Thighs$1.99
  • Cardio & Planks - Belly Fat$1.99
  • Pilates & Planks$1.99
  • 30 Day Plank Challenge$1.99
  • Create Challenges$2.99
  • Full Bundle$4.99
None

Plank Timer | Dr. Simplicity

No in-app purchases

Questions

Is The 30 Day Plank Challenge free?
The 30 Day Plank Challenge is free to download, with in-app purchases available.
Is Plank Timer | Dr. Simplicity free?
Plank Timer | Dr. Simplicity is free to download, with no in-app purchases.
Do The 30 Day Plank Challenge or Plank Timer | Dr. Simplicity have ads?
Both The 30 Day Plank Challenge and Plank Timer | Dr. Simplicity show ads.
Which is updated more often, The 30 Day Plank Challenge or Plank Timer | Dr. Simplicity?
The 30 Day Plank Challenge ships an update every 5 months, and Plank Timer | Dr. Simplicity every 5 days. Most recently, The 30 Day Plank Challenge was updated on October 23, 2026 and Plank Timer | Dr. Simplicity on October 25, 2026.

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