Comparison

Plank Challenge vs Planki

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

Head to head
About

Plank Challenge

Features
Read full description

Get a stronger core in just 30 days — no gym, no equipment, no excuses. The 30 Days Planking Challenge guides you from your very first 20-second hold all the way to a 10-minute plank with a progressive, day-by-day program you can do anywhere. Hands-free voice coaching counts you in, calls the halfway mark, and pushes you through the final seconds — so you never have to look at your phone mid-plank. Just press start and hold. WHY YOU'LL STICK WITH IT • Streak Shields automatically cover one missed day per week, so a single skipped session never breaks your momentum. • A clear 30-day calendar shows every workout at a glance. • Personal bests track how far you've come. FOUR DIFFICULTY TIERS • Beginner: 20 seconds → 2 minutes • Intermediate: build real endurance • Advanced: longer, tougher holds • Elite: 4 minutes → 10 minutes BUILT FOR YOUR WHOLE DAY • Full Apple Watch app — train with your wrist, leave your phone behind. • Home-screen widget keeps your streak front and center. • HealthKit sync logs every session as core training. SIMPLE, FAIR PRICING • The Beginner tier is completely free. • One-time Pro unlock adds the Intermediate, Advanced and Elite tiers — pay once, own it forever. No subscriptions, ever. Whether you're rebuilding strength, fixing your posture, or just want visible abs, two minutes a day is all it takes. Start the challenge today and feel the difference by day 30.

About

Planki

This app transforms plank exercises into an engaging game by having users catch fireflies with their body movements. It offers beginner-friendly sessions, social leaderboards, and collectible rewards, making fitness fun and accessible without any equipment.

Highlights
  • Planking game with body movement control
  • Beginner-friendly short sessions
  • Social leaderboards and friend challenges
  • Customizable in-game buddy with skins
  • Collectible gemstones
  • No equipment required
Read full description

The app is simple: start the timer and catch fireflies in the sky just with your body movements. ◆ Planking with ease The firefly-catching game keeps your mind busy, no more exhausting staring at the timer – the plank workout feels shorter and easier. ◆ Beginner-friendly Start with short sessions you can realistically complete. ◆ Together with your friends Plank with your friends and show the progress on the leaderboard. ◆ Customize your buddy Buy skins from the XP you earned from the plank workouts. Show off your personalized buddy on the leaderboard! ◆ Collect gemstones Catch special fireflies and get rewarded with beautiful gemstone collectibles. ◆ No equipment required Plank anywhere – at home, at work, or even in the park. All you need is your phone and Planki. ––– Terms of Use: https://plankiapp.com/terms Privacy Policy: https://plankiapp.com/privacy/app

Screenshots

Plank Challenge4 screens
Planki4 screens

Verdict

The call

The clearest difference is update cadence: Planki at monthly against Plank Challenge's every 3 months. On price, ads, in-app purchases 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 Challenge sells 1 one-off in-app purchase and Planki sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Plank Challenge ships an update every 3 months, Planki monthly. The most recent releases landed on October 30, 2026 and October 22, 2026 respectively.

Scorecard1 real difference · 9 level
Plank Challenge versus Planki: the parameters behind the verdict, then further details
ParameterPlank ChallengePlanki
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS18.0 — better18.6
Further details — not scored
Size5 MB30 MB
Age rating4+4+
DeveloperAppConsultBastian Raschke

In-app purchases

1 purchases

Plank Challenge

One-time1
  • Planking Pro$4.99
6 purchases

Planki

Subscriptions5
  • Monthly3 Days trial$2.991 Month
  • Weekly3 Days trial$2.997 Days
  • Yearly3 Days trial$17.991 Year
Show 2 more
  • Yearly$17.991 Year
  • Yearly3 Days trial$24.991 Year
One-time1
  • One Time$34.99

Questions

Is Plank Challenge free?
Plank Challenge is free to download, with in-app purchases available.
Is Planki free?
Planki is free to download, with in-app purchases available.
Do Plank Challenge or Planki have ads?
Neither Plank Challenge nor Planki shows ads.
Which is updated more often, Plank Challenge or Planki?
Plank Challenge ships an update every 3 months, and Planki monthly. Most recently, Plank Challenge was updated on October 30, 2026 and Planki on October 22, 2026.

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