Comparison

Caliber vs 9

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

Head to head
About

Caliber

This app offers science-based strength training, including workout planning, tracking, and exercise tutorials. It supports individual training, group workouts, and offers optional upgrades for personalized plans, advanced features, and one-on-one coaching.

Highlights
  • Unlimited workout creation and tracking
  • 600+ exercise tutorials with videos
  • Workout groups for training with friends
  • Coach-designed training plans
  • Personalized progress tracking
  • 1-on-1 elite coaching options
Features
Read full description

Caliber is a science-based strength training app that combines resistance training, cardio, nutrition, and habit formation to help you build muscle, lose weight, and improve your overall fitness - for good. TRAIN YOUR WAY • Free Version. Create and track unlimited workouts, access 800+ exercises, and train solo or with friends. • Caliber Plus. Maximize your results with coach-designed training plans, personalized progress tracking, nutrition targets and more. • Premium Coaching. Get 1-on-1 guidance from an elite-level personal trainer with a fully customized training and nutrition plan, in-app chat + video messaging with your coach and weekly progress reviews to keep you on track. CALIBER FEATURES (FREE VERSION) • Personalized Workouts. Create and track an unlimited number of workouts tailored to your goals. No gym required. • Detailed Exercise Tutorials. Learn proper form with step-by-step videos and pro tips from Caliber coaches. • Workout Circles. Train with friends and family in private workout chats. When you hit a personal best, it's shared with the group. • Apple Health Integration. Sync your cardio, nutrition, steps and body stats from your wearable or connected device. • Connect to AI. Sync your training data with ChatGPT and Claude for personalized insights and training analysis. UNLOCK MORE WITH CALIBER PLUS (OPTIONAL UPGRADE) • Coach-Designed Training Plans. Choose from 120+ structured plans tailored to your goals, experience level and schedule. • Strength Score. Measure how strong you are relative to your potential for your age and gender. • Strength Balance. Improve your posture and mobility by optimizing your training across key muscle groups. • Caliber Lessons. Gain expert insights on training and nutrition to accelerate your progress. • Advanced Training Features. Get personalized nutrition targets, create custom exercises and supersets, swap exercises, upload progress photos, and more. PREMIUM COACHING (OPTIONAL UPGRADE) • Work with an Elite-Level Coach. Train 1-on-1 with a dedicated coach to achieve your full potential in the gym and beyond. Caliber coaches are highly vetted, accredited personal trainers among the top 1% in their field. • Fully Personalized Plan. Your coach will design a training and nutrition program just for you based on your goals, experience and lifestyle. • Daily Motivation & Expert Guidance. Stay on track with in-app messaging, video form reviews, and individualized guidance. • Weekly Progress Reviews. Get in-depth analysis from your coach to optimize your training. • Fast Response Times. Your coach is available 24/7, typically replying within a few hours. • Guaranteed Results. On average, Caliber members improve their body composition by 20% or more within 12 weeks. If you don't see results, we'll refund the cost of the program. SEE WHAT OUR MEMBERS SAY • For detailed reviews from real Caliber members, visit our TrustPilot page at https://www.trustpilot.com/review/caliberstrong.com Terms of Use: https://caliberstrong.com/terms-of-service/ Privacy Policy: https://caliberstrong.com/privacy-policy/

About

9

This app helps you stay active during your workday with smart push-up reminders. It allows you to set customizable intervals and track your progress without disrupting your professional schedule. Achieve your fitness goals with quick, work-friendly workouts.

Highlights
  • Smart push-up reminders
  • Customizable work-hour intervals
  • Daily progress tracking
  • Work-friendly design
  • Quick setup
  • Battery efficient
Features
Read full description

Transform your workday with Push-Up Reminder, the smart fitness companion that helps you stay active right from your desk! This innovative app turns your work breaks into quick workout opportunities, making it easy to maintain an active lifestyle despite a busy schedule. Features: - Smart Notifications: Get gentle reminders to do push-ups at customizable intervals throughout your workday - Progress Tracking: Keep track of your daily push-ups and watch your progress grow over time - Work-Friendly Design: Set reminders only during work hours to maintain your professional schedule - Quick Setup: Start your fitness journey with an intuitive, easy-to-use interface - Battery Efficient: Lightweight app that won't drain your device's resources Whether you're looking to break up long sitting sessions or build a consistent exercise habit, Push-Up Reminder helps you achieve your fitness goals without disrupting your work routine. Download now — your stronger self is just a few push-ups away!

Screenshots

Caliber4 screens
93 screens

Verdict

The call

The clearest difference is in-app purchases: 9 at none against Caliber's 24. 9 also leads on review sentiment (100% vs 78%) and iOS requirement (13.4 vs 15.1). Caliber's advantage is ratings volume (6K vs 3). On price, rating, 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. Caliber sells 18 in-app purchases, starting at $3.00 per month. 9 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

9 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Caliber has 6K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 78% of Caliber's written reviews are positive against 100% of 9's.

Scorecard5 real differences · 5 level
Caliber versus 9: the parameters behind the verdict, then further details
ParameterCaliber9
PriceFreeFree
Rating4.8 (6K ratings)5.0 (3 ratings) — better
Positive reviews78.0% of reviews100.0% of reviews — better
Number of ratings6K — better3
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.113.4 — better
Further details — not scored
Size67 MB22 MB
Age rating12+4+
DeveloperCaliber Fitness, IncPrime Altitude LLC

Customer experience

Caliber

All ratings6,020 ratings
Positive96.6%
Neutral1.1%
Negative2.3%
Written reviews528 reviews
Positive78.0%
Neutral6.3%
Negative15.7%

9

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Caliber

Reported bugs

3 issues
  • Workout data loss when switching between online and offline mode
  • Strength score not updating correctly in some cases
  • Inability to log weight for certain exercises

Requested features

5 requests
  • Add ability to create and save custom exercises
  • Integrate with more fitness tracking devices and apps
  • Improve offline mode to allow full workout tracking
  • Provide more flexibility in workout scheduling and planning
  • Enhance strength score calculations and explanations

9

Not enough reviews yet to summarise bugs or requests.

In-app purchases

18 purchases

Caliber

Subscriptions18
  • Caliber Supporter (Monthly)$3.001 Month
  • Caliber Supporter (Monthly)$5.001 Month
  • Caliber Plus (Monthly)2 variants$6.001 Month
Show 15 more
  • Caliber Plus (Monthly)7 Days trial$6.001 Month
  • Caliber Supporter (Monthly)$7.001 Month
  • Caliber Supporter (Monthly)$9.001 Month
  • Caliber Plus (Monthly)2 variants$9.001 Month
  • Caliber Plus (Monthly)2 variants$12.001 Month
  • Caliber Pro (Monthly)$19.001 Month
  • Caliber Pro (Monthly)7 Days trial$19.001 Month
  • Caliber Plus (Yearly)7 Days trial$36.001 Year
  • Caliber Pro (3 Months)$49.003 Months
  • Caliber Pro (3 Months)7 Days trial$49.003 Months
  • Caliber Plus (Yearly)7 Days trial2 variants$54.001 Year
  • Caliber Plus (Yearly)7 Days trial2 variants$72.001 Year
  • Caliber Plus (Yearly)1 Month trial$72.001 Year
  • Caliber Pro (Yearly)$169.001 Year
  • Caliber Pro (Yearly)7 Days trial$169.001 Year
None

9

No in-app purchases

Questions

Is Caliber free?
Caliber is free to download, with in-app purchases available.
Is 9 free?
9 is free to download, with no in-app purchases.
Which has better reviews, Caliber or 9?
9 is rated higher. Caliber averages 4.8 out of 5 from 6K ratings, while 9 averages 5.0 from 3 ratings.
Do Caliber or 9 have ads?
Neither Caliber nor 9 shows ads.

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