Comparison

Plank King 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

Plank King

This app helps you build a consistent core-training habit with a focused plank timer and progressive 30-day plans. Track your progress, view trends, and stay motivated with streaks and achievements. It's designed for everyday use and habit tracking.

Highlights
  • One-tap plank timer
  • 30-day progressive plans
  • Workout history and progress trends
  • Daily habit reminders
  • Apple Health sync
  • Streaks, achievements, and leaderboards
Features
Read full description

Plank King is a focused plank timer and training-plan app for building a steady core-training habit. Use it to time each plank session, follow progressive 30-day plans, record your workout history, and see your streaks and trends at a glance. Start with a level that fits you, train within your limits, and keep small sessions consistent over time. What you can do with Plank King: - Start a clean plank timer in one tap - Follow beginner, intermediate, and advanced 30-day plans - Save workout history and view progress trends - Set reminders for your daily plank habit - Sync supported workouts with Apple Health - Keep motivation with streaks, achievements, and leaderboards Plank King is designed for everyday core training and habit tracking. It does not provide medical advice. Stop if you feel pain, and consult a qualified professional if you have health concerns. Subscription: Plank King may offer optional paid plans for premium features such as advanced plans, analytics, and unlimited history. Payment is charged to your Apple ID. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://flykey.notion.site/Privacy-Policy-4239beb3c3394b779c2fd1e215bfeff6?pvs=4

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

Plank King4 screens
Plank Timer | Dr. Simplicity4 screens

Verdict

The call

The clearest difference is in-app purchases: Plank Timer | Dr. Simplicity at none against Plank King's 3. Plank Timer | Dr. Simplicity also leads on update cadence (every 5 days vs every 2 months) and iOS requirement (15.3 vs 17.0). Plank King's advantage is ads (none vs shown). On price and device support 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 King sells 3 in-app purchases, starting at $2.99 per month. Plank Timer | Dr. Simplicity asks for nothing beyond the download.

UpkeepUpdate frequency

Plank King ships an update every 2 months, Plank Timer | Dr. Simplicity every 5 days. Both last shipped on September 21, 2026.

Scorecard4 real differences · 4 level
Plank King versus Plank Timer | Dr. Simplicity: the parameters behind the verdict, then further details
ParameterPlank KingPlank Timer | Dr. Simplicity
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.3 — better
Further details — not scored
Size33 MB9 MB
Age rating4+4+
Developer源 陈Saihou Ieong

In-app purchases

3 purchases

Plank King

Subscriptions3
  • Monthly Subscription$2.991 Month
  • Six-Month Subscription7 Days trial$14.996 Months
  • Premium Plus Bundle$24.991 Year
None

Plank Timer | Dr. Simplicity

No in-app purchases

Questions

Is Plank King free?
Plank King 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 Plank King or Plank Timer | Dr. Simplicity have ads?
Plank Timer | Dr. Simplicity shows ads; Plank King does not.
Which is updated more often, Plank King or Plank Timer | Dr. Simplicity?
Plank King ships an update every 2 months, and Plank Timer | Dr. Simplicity every 5 days. Most recently, Plank King was updated on September 21, 2026 and Plank Timer | Dr. Simplicity on September 21, 2026.

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