Comparison

30 Day Ab Workout Challenge vs One Dojo

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

Head to head
About

30 Day Ab Workout Challenge

Achieve flat abs and a stronger core with a structured 30-day guided program. This app offers effective workouts, clear video demonstrations, and progress tracking to help you stay motivated and see results, regardless of your fitness level.

Highlights
  • Ultra-effective ab workouts
  • Easy-to-follow video demonstrations
  • Workout calendar and reminders
  • Progress tracking
  • Suitable for all fitness levels
Features
Read full description

Thirty days. A few minutes a day. A core that feels stronger every time you sit up, stand tall or pick something up. 30 Day Ab Workout Challenge gives you one clear ab and core plan at home, for women and men. Each day shows the moves, the reps and the rest. Press start and follow along. Start free with Beginner Level 1, a full 30 day plan. HOW IT WORKS Tell the app your height and weight. It sets your starting level and reps from your BMI, using the WHO categories, and it cites its health sources (WHO, NIH and others) inside the app. There are 6 levels: Beginner 1 and 2, Intermediate 1 and 2, Advanced 1 and 2. Each level is a 30 day plan that gets a little harder each day, with rest days built in. EVERY SESSION • A warm-up to start and a cool-down to finish • 17 ab and core moves, including crunches, planks, leg raises, bicycle crunches, Russian twists, mountain climbers and side planks • A clear video for every move, saved to your phone so sessions work offline • A voice coach that names each move and counts your reps, in 10 languages • About 4 to 15 minutes, depending on your level and day All you need is a bit of floor space. EAT FOR YOUR PLAN Choose one of 5 diet plans: vegetarian, vegan, Mediterranean, Atkins or keto. Browse 258 recipes with calories and macros, swap any meal you don't like, and get a shopping list built from your meal plan. TRACK YOUR PROGRESS • Before and after photos, measurements and weight • Water and steps • Session history • 30 badges for streaks and milestones • Apple Health: reads your steps and water, and saves finished sessions as workouts • A daily workout reminder AN HONEST NOTE ON BELLY FAT No exercise burns fat from one spot, and results are different for everyone. What works is training most days and eating a little better overall. That is why the plan comes with diet plans and recipes. WHAT'S INSIDE • 6 levels, each a 30 day ab and core plan • Starting level and reps set from your height and weight • 17 ab and core moves, each with a video • A voice coach that counts your reps • Warm-up, cool-down and rest days built in • 5 diet plans, 258 recipes and a shopping list • Progress photos, measurements, weight, water and steps • 30 badges and a session history • Apple Health and a daily reminder • App in 10 languages: English, Spanish, Portuguese (Brazil), German, French, Italian, Russian, Hindi, Indonesian and Arabic BEFORE YOU START Check with your doctor before starting any new exercise program, especially if you are pregnant, injured, have back problems or are new to exercise. The app gives general fitness information, not medical advice. SUBSCRIPTION The app is free to download, and Beginner Level 1 is free. A membership unlocks every level, the diet plans, recipes, shopping list and progress tools. • Yearly: $29.99 per year, with a 7-day free trial • Weekly: $1.99 per week, no free trial The free trial is on the yearly plan only. Payment is charged to your Apple Account when you confirm the purchase, or when the free trial ends. Your subscription renews automatically unless you cancel at least 24 hours before the end of the current period, and your account is charged for the renewal within the 24 hours before the period ends. You can manage or cancel it anytime in your App Store account settings (Settings > your name > Subscriptions). Any unused part of a free trial is forfeited when you buy a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.lauruss.com/app/policy.html Questions or feedback: rumbleent@hotmail.com

About

One Dojo

Features
Read full description

Guiding you through your health and fitness journey! - Book classes online in just a few clicks - Create your own exercise programmes or select from a range provided by the club - Track your progress from all your workouts - Keep track of your body measurements and progress - Take part in regular fitness challenges - Contact club staff directly - Interact and get to know your fellow members - See all the latest club news, offers and events - Refer Friends to the club online - Recipes Library - Video Workout Library Apple Health App Integration Track your progress with our HealthKit app integration to import and measure your daily steps, distance or calories burnt. Also use HealthKit to import your data from a range of different wearable devices.

Screenshots

30 Day Ab Workout Challenge4 screens
One Dojo4 screens

Verdict

The call

The clearest difference is in-app purchases: One Dojo at none against 30 Day Ab Workout Challenge's 10. One Dojo also leads on update cadence (every 8 days vs every 2 months) and iOS requirement (13.0 vs 15.0). On price, ads 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. 30 Day Ab Workout Challenge sells 10 in-app purchases, starting at $0.99 per 7 days. One Dojo asks for nothing beyond the download.

UpkeepUpdate frequency

30 Day Ab Workout Challenge ships an update every 2 months, One Dojo every 8 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
30 Day Ab Workout Challenge versus One Dojo: the parameters behind the verdict, then further details
Parameter30 Day Ab Workout ChallengeOne Dojo
PriceFreeFree
Rating4.7 (668 ratings) — better—
Positive reviews86.7% of reviews—
Number of ratings668 — better—
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size62 MB28 MB
Age rating4+4+
DeveloperRumbleTeamUp Sports

Bugs and requests

30 Day Ab Workout Challenge

Reported bugs

2 issues
  • Login screen freezes
  • Incompatible with older devices

Requested features

3 requests
  • Add music options during workouts
  • Improve app stability and performance
  • Adjust age rating to be more appropriate

One Dojo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

30 Day Ab Workout Challenge

Subscriptions9
  • Ab challenge (Weekly)3 Days trial$0.997 Days
  • Weekly Subscription$0.997 Days
  • Abs Monthly New$1.991 Month
Show 6 more
  • Weekly Subscription$1.997 Days
  • 30 Day Ab Challenge (Weekly)3 Days trial$1.997 Days
  • Monthly Subscription$5.991 Month
  • 30 Day Ab Challenge (Monthly)3 Days trial$8.991 Month
  • Yearly Subscription7 Days trial$29.991 Year
  • Ab challenge & workout7 Days trial$37.996 Months
One-time1
  • Ab challenge & workout$39.99
None

One Dojo

No in-app purchases

Questions

Is 30 Day Ab Workout Challenge free?
30 Day Ab Workout Challenge is free to download, with in-app purchases available.
Is One Dojo free?
One Dojo is free to download, with no in-app purchases.
Do 30 Day Ab Workout Challenge or One Dojo have ads?
Neither 30 Day Ab Workout Challenge nor One Dojo shows ads.
Which is updated more often, 30 Day Ab Workout Challenge or One Dojo?
30 Day Ab Workout Challenge ships an update every 2 months, and One Dojo every 8 days. Most recently, 30 Day Ab Workout Challenge was updated on November 6, 2026 and One Dojo on November 3, 2026.

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