Comparison

20 Pull Ups Trainer Challenge vs Circus Abs

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

Head to head
About

20 Pull Ups Trainer Challenge

This app guides users to achieve 20 pull-ups in 6 weeks with a proven program suitable for all fitness levels. It offers voice cues, progress tracking, and motivational features. The first two weeks are free, with subscription options available for full access.

Highlights
  • Achieve 20 pull-ups in 6 weeks
  • Program for all fitness levels
  • Voice cues for guidance
  • Badges and awards for workouts
  • Social sharing of progress
  • Motivational music
Features
Read full description

■ Join the millions completing the Zen Challenge Series! ■ 0 to 20 Pullups in 6 weeks! ■ Featured on Glamour Magazine, Yahoo!’s Appolicious, Popsugar Fitness, Apple’s “What’s Hot”, Apple’s “New & Noteworthy”, and doctor recommended on healthTap! "Had trouble even doing 1 pulll-up, but this program helps train you by first holding on to the bar if you can't finish 1 pull-up. At first I was a skeptic, but I'm at 5 pull-ups now and still going! I'm a believer!" Are you ready for the 20 Pull-Ups Challenge? Train your upper body/core and build up to completing 20 pull-ups with same people that brought you the OFFICIAL #1 5K Training app C25K®. Using a proven program, you will be able to complete 20 straight pull-ups after just 6 weeks! The Zen Challenge Series is tailored towards all fitness levels. From first-timers to fitness veterans, this app will build up your strength and stamina to complete 20 pull-ups. Can't do a single pull-up? Don't worry, there is a built-in program to help you build strength to get there! ≈ It's easy and straight forward to start ≈ 1. Just open the app and start! 2. Listen to the voice cues! ≈ Features ≈ ◎ First 2 weeks are free! Get started today! ◎ Achieve badges and awards for finishing a workout! ◎ Intuitive user friendly interface ◎ Integrated with Facebook/Twitter/Instagram communities, so share your progress and achievements! ≈ NEW Zen Unlimited Pass - Try it for free! ≈ ◉ Award winning music curated from top DJ's! ◉ Scientifically proven to increase motivation by 35% ◉ Unlimited access to all pro features across ALL Zen Labs Fitness apps We hope you enjoy the app and find it to be a useful training tool. Please leave us any friendly feedback, and rate us if you like the app! Questions/comments regarding the app? Please email us at contactus@zenlabsfitness.com or visit us at www.zenlabsfitness.com. ≈ Connect ≈ Facebook: @C25Kfree Twitter: @C25Kfree Instagram: @officialc25k Hashtag: #C25K https://forums.zenlabsfitness.com Subscription pricing and terms: The subscription will automatically renew unless turned off in your iTunes Account Settings at least 24 hours before current period ends. You can go to your iTunes Account settings to manage your subscription and turn off auto-renew. Your iTunes Account will be charged when the purchase is confirmed. If you subscribe before your free trial ends, the rest of your free trial period will be forfeited as soon as your purchase is confirmed. Privacy Policy & Terms of Use: https://www.zenlabsfitness.com/privacy-policy/ Legal Disclaimer This app and any information given by it or by Zen Labs Fitness are for educational purposes only. They are not intended nor implied to be a substitute for professional medical advice. You should always consult your healthcare provider before beginning any fitness program.

About

Circus Abs

Sculpt your abdominal muscles with a variety of challenging exercises designed for all fitness levels. Create custom workouts, share them with friends, and get instructions from a professional circus artist.

Highlights
  • Over 50 exercises
  • Custom workout creation
  • Workout sharing
  • Professional circus artist instructions
  • Simple UI
Features
Read full description

Are you looking for a fun and easy way to get fit abs? Look no further than Circus Abs! This app offers a variety of challenging exercises that will help you sculpt your abdominal muscles. With Circus Abs, you can achieve the perfect core workout no matter what your fitness level is - this app has all you need to get that six pack you've always wanted. - Comes with over 50 exercises, with more being added all the time. - Simplicity without UI clutter. - Create your own custom workouts or share them with friends! - Instructions from a professional circus artist.

Screenshots

20 Pull Ups Trainer Challenge4 screens
Circus Abs4 screens

Verdict

The call

The clearest difference is ads: 20 Pull Ups Trainer Challenge at none against Circus Abs's shown. 20 Pull Ups Trainer Challenge also leads on ratings volume (890 vs 1). Circus Abs's advantage is update cadence (every 2 days vs every 2 months) and rating (5.0 vs 4.6). On price, in-app purchases, monetization model 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. 20 Pull Ups Trainer Challenge sells 3 in-app purchases, starting at $4.99 per month and Circus Abs sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Circus Abs holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: 20 Pull Ups Trainer Challenge has 890 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

20 Pull Ups Trainer Challenge ships an update every 2 months, Circus Abs every 2 days. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 5 level
20 Pull Ups Trainer Challenge versus Circus Abs: the parameters behind the verdict, then further details
Parameter20 Pull Ups Trainer ChallengeCircus Abs
PriceFreeFree
Rating4.6 (890 ratings)5.0 (1 ratings) — better
Positive reviews48.5% of reviews—
Number of ratings890 — better1
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size71 MB224 MB
Age rating4+4+
DeveloperZen LabsJH Digital Solutions

Customer experience

20 Pull Ups Trainer Challenge

All ratings890 ratings
Positive90.3%
Neutral3.0%
Negative6.6%
Written reviews66 reviews
Positive48.5%
Neutral7.6%
Negative43.9%

Circus Abs

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

20 Pull Ups Trainer Challenge

Reported bugs

2 issues
  • App crashes
  • Compatibility issues with older devices

Requested features

3 requests
  • Ability to track incomplete workouts
  • Option to start at beginner, intermediate, or advanced level
  • Ability to combine multiple Zen apps (push-ups, squats, etc.) into circuits

Circus Abs

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

20 Pull Ups Trainer Challenge

Subscriptions3
  • Zen Unlimited Pass Monthly7 Days trial$4.991 Month
  • Zen Power Playlist 3 Months7 Days trial$29.993 Months
  • Zen Unlimited Pass Annual7 Days trial$74.991 Year
1 purchases

Circus Abs

One-time1
  • All the exercises$3.99

Questions

Is 20 Pull Ups Trainer Challenge free?
20 Pull Ups Trainer Challenge is free to download, with in-app purchases available.
Is Circus Abs free?
Circus Abs is free to download, with in-app purchases available.
Which has better reviews, 20 Pull Ups Trainer Challenge or Circus Abs?
Circus Abs is rated higher. 20 Pull Ups Trainer Challenge averages 4.6 out of 5 from 890 ratings, while Circus Abs averages 5.0 from 1 ratings.
Do 20 Pull Ups Trainer Challenge or Circus Abs have ads?
Circus Abs shows ads; 20 Pull Ups Trainer Challenge does not.
Which is updated more often, 20 Pull Ups Trainer Challenge or Circus Abs?
20 Pull Ups Trainer Challenge ships an update every 2 months, and Circus Abs every 2 days. Most recently, 20 Pull Ups Trainer Challenge was updated on October 18, 2026 and Circus Abs on October 17, 2026.

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