Apps by Mooncheon Song
The 30-Day Plank Challenge app icon

Health & Fitness

The 30-Day Plank Challenge

Mooncheon Song

Free download In-app purchases unconfirmed
Open on Apple

About this app

A strong, stable core is the foundation you need to not only prevent injury but move freely and strongly in every workout. Join the 30-day plank challenge and you'll see noticeable changes in just a month's time. How To Plank 1. Place elbows directly beneath your shoulders, legs extended. 2. Press through your heels so calves are lengthened. 3. Relax your hand and look at the floor. 4. Keep your body in a straight line.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Aug 19, 2026 · 0 ratings Aug 19, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 19, 2026 · Free Aug 19, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 19, 2026 · 6:13 AM Free

Screenshots

The 30-Day Plank Challenge iPhone screenshotThe 30-Day Plank Challenge iPhone screenshotThe 30-Day Plank Challenge iPhone screenshotThe 30-Day Plank Challenge iPhone screenshotThe 30-Day Plank Challenge iPhone screenshotThe 30-Day Plank Challenge iPhone screenshot