Comparison

NASM EDGE vs ClassBuzz

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

Head to head
About

NASM EDGE

This app provides tools for personal trainers to manage clients, create custom workouts, and track progress. It also offers resources for fitness enthusiasts, including exercise videos and daily routines.

Highlights
  • Client assessment wizard
  • Custom workout creation
  • Calorie and macronutrient calculator
  • Client dashboard with progress tracking
  • Exercise video library
  • NASM CPT exam preparation tools
Features
Read full description

NASM EDGE: The Ultimate Personal Trainer App The biggest name in personal training certification brings you best in class technology to help you provide exceptional training – and superior results – for every level of client. NEW: Prepare for the NASM CPT Exam with practice questions, flashcards, and more! EDGE APP FOR PERSONAL TRAINERS: - Assessment Wizard: Take all of the guesswork out of personal trainer client assessments and perform them quickly and accurately. - Instant Custom Workouts: Create your own custom workouts inside the EDGE personal trainer app or choose from ready-to-go sessions designed by NASM experts. - Calorie & Macronutrient Calculator: Empower your personal training clients with next-level nutrition feedback and advice that’s aligned with their fitness goals. - Client Dashboard: Keep tabs on your clients with real-time performance tracking, dynamic assessments, and more – all inside the EDGE app for personal trainers. - State-of-the-art Video Library: Access and share our curated collection of exercise videos from within the EDGE personal trainer app. It includes hundreds of NASM expert approved exercises. - Pass the Test on the First Try: Get ready for the NASM CPT Exam with official NASM study tools including 600+ practice questions, 500+ flash cards and unlimited attempts on the NASM practice test. EDGE APP FOR FITNESS ENTHUSIASTS: - Easily keep track of your workouts, progress and goals. - Learn how to perform new exercises with proper form with NASM’s extensive exercise library - Keep in touch with your personal trainer via calls, messaging and more. - Start your day off right with Wake-Up Workouts: daily 7-10 minute workout routines designed by NASM’s expert personal trainers. - Get remarkable results quicker than ever before. Brought to you by the National Academy of Sports Medicine - Empowering 500,000+ Personal Trainers. - The exclusive OPTTM methodology provides a framework for success. - Over 30 years of evidence-based expertise. Note: An auto-renewing subscription is required to access the NASM Edge Trainer Plus premium features. A purchase will be applied to your account within 24 hours of purchase or the end of the trial period, if one is offered. Subscriptions will automatically renew unless canceled at least 24-hours before the end of the current period. You can cancel anytime from your Account Settings. Any unused portion of a free trial will be forfeited if you cancel a subscription. For more information, see our Terms and Conditions and Privacy Policy: https://www.nasm.org/policies/terms-and-conditions/nasm-app

About

ClassBuzz

Create and personalize social media content to promote yourself and your Zumba classes. Access exclusive Zumba-branded assets like images, videos, and animations to design engaging posts.

Highlights
  • Personalize social media content
  • Exclusive Zumba-branded assets
  • Template-based post creation
  • Customizable posts with text and stickers
  • Direct social media sharing
Features
Read full description

Ready to create some buzz? Market yourself on social media like a pro with ClassBuzz, the mobile app exclusively for members of the Zumba® Instructor Network! Now you can easily create + personalize content promoting yourself and your Zumba® classes! Explore your creativity with exclusive Zumba® branded content including images, videos, animations, memes, patterns, and more! HOW CLASSBUZZ WORKS: 1. Choose A Template Pick from class, event, or meme templates. Or, build your post from scratch with a blank canvas! 2. Add Backgrounds, Stickers + Text Choose a background and personalize your post with text… then, bring it to life with official Zumba® stickers and GIFs! 3. Share To Social Click to share your post with your students and followers across all social platforms.

Screenshots

NASM EDGE4 screens
ClassBuzz4 screens

Verdict

The call

The clearest difference is rating: ClassBuzz at 4.1 against NASM EDGE's 2.9. ClassBuzz also leads on in-app purchases (none vs 6) and ads (none vs shown). NASM EDGE's advantage is device support (3 vs 1) and ratings volume (236 vs 63). On price, update cadence and iOS requirement 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. NASM EDGE sells 6 in-app purchases, starting at $19.99 per month. ClassBuzz asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ClassBuzz holds the better App Store score, 4.1 against 2.9. Both are backed by a comparable volume of ratings — 236 and 63 respectively. Written reviews point the same way: 9% of NASM EDGE's written reviews are positive against 36% of ClassBuzz's.

UpkeepUpdate frequency

NASM EDGE ships an update every 3 weeks, ClassBuzz every 5 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

Scorecard7 real differences · 3 level
NASM EDGE versus ClassBuzz: the parameters behind the verdict, then further details
ParameterNASM EDGEClassBuzz
PriceFreeFree
Rating2.9 (236 ratings)4.1 (63 ratings) — better
Positive reviews9.4% of reviews36.4% of reviews — better
Number of ratings236 — better63
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size235 MB53 MB
Age rating4+4+
DeveloperATIZumba® Fitness

Customer experience

NASM EDGE

All ratings236 ratings
Positive38.1%
Neutral15.7%
Negative46.2%
Written reviews127 reviews
Positive9.4%
Neutral18.1%
Negative72.4%

ClassBuzz

All ratings63 ratings
Positive74.6%
Neutral7.9%
Negative17.5%
Written reviews44 reviews
Positive36.4%
Neutral20.5%
Negative43.2%

Bugs and requests

NASM EDGE

Reported bugs

5 issues
  • Workouts disappearing after saving
  • Exercises not loading properly
  • Inability to edit/delete client information
  • Frequent login issues and app crashes
  • Unreliable syncing between app and web version

Requested features

6 requests
  • Add ability to create supersets and circuits
  • Allow clients to record weights/reps used
  • Integrate with fitness tracking apps
  • Add more exercise options, including basic movements
  • Improve workout editing and saving functionality
Show 1 more
  • Enhance search and filtering capabilities

ClassBuzz

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

NASM EDGE

Subscriptions5
  • Trainer Plus (1 Month)$19.991 Month
  • Trainer Pro (1 Month)$34.991 Month
  • Trainer Quarterly Subscription$55.993 Months
Show 2 more
  • Trainer Plus (1 Year)$199.991 Year
  • Trainer Pro (1 Year)$349.991 Year
One-time1
  • CPT Exam Prep Package$16.99
None

ClassBuzz

No in-app purchases

Questions

Is NASM EDGE free?
NASM EDGE is free to download, with in-app purchases available.
Is ClassBuzz free?
ClassBuzz is free to download, with no in-app purchases.
Which has better reviews, NASM EDGE or ClassBuzz?
ClassBuzz is rated higher. NASM EDGE averages 2.9 out of 5 from 236 ratings, while ClassBuzz averages 4.1 from 63 ratings.
Do NASM EDGE or ClassBuzz have ads?
NASM EDGE shows ads; ClassBuzz does not.
Which is updated more often, NASM EDGE or ClassBuzz?
NASM EDGE ships an update every 3 weeks, and ClassBuzz every 5 weeks. Most recently, NASM EDGE was updated on October 13, 2026 and ClassBuzz on October 16, 2026.

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