Comparison

Chalk Performance Training vs Stretch Strong

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

Head to head
About

Chalk Performance Training

Access science-based workouts for any fitness level, at home or in the gym. Track your progress, join a supportive global community, and receive expert guidance to achieve your health and fitness goals.

Highlights
  • At-home and gym workout programs
  • Beginner, intermediate, and advanced options
  • Exclusive workout library
  • Video demonstrations and instructions
  • Progress tracking and performance analysis
  • Global fitness community and discussions
Features
Read full description

The Chalk Performance Training App is the #1 Transformation App with the most effective, science-based workouts for anyone, anywhere and anytime. Chalk Performance Training is more than just a fitness app. It is a global family that works hard, trains together and inspires each other to reach new heights through health and fitness. WORKOUTS: ⁃ Train anywhere, anytime with access to both at home AND gym workout programs. ⁃ Find a workout to suits your needs, with beginner, intermediate or advanced workout options. ⁃ Access our exclusive Chalk Workout Library, with aesthetic, strength, endurance building, and minimal equipment program options. ⁃ Have a new, fresh and exciting workout for every day at your fingertips, ensuring you never get bored and stay motivated to achieve your fitness goals. ⁃ Set up a workout schedule that easily suits your preferences and your life. ⁃ All workouts include clear instructions, video demonstrations and exercise descriptions for proper form and technique to get the best results. PROGRESS TRACKING, SUPPORT & ACCOUNTABILITY: ⁃ Exclusive Chalk Performance Training video content. ⁃ Set goals and track your progress seamlessly within the app to ensure you are moving in the right direction. ⁃ Record your workout stats and analyze your performance over time. ⁃ Information, tips and tricks to educate you on your journey! COMMUNITY: ⁃ Join the Exclusive Chalk Performance Training Community that is a worldwide fitness family. ⁃ Get motivated by seeing what other users are achieving and share your journey and accomplishments too! ⁃ Participate in group discussions, ask questions, and get advice from experienced trainers and Chalk Coaches. ⁃ Discover inspiring success stories, fitness tips, and valuable insights from industry experts. We are on a mission to transform bodies, hearts and lives through health and fitness. If you have a goal, it is our mission to help you achieve it. We’d love to welcome you to our worldwide Chalk Performance Training Family!

About

Stretch Strong

Access a vast library of over 400 stretching exercises with video demonstrations and expert-led weekly workouts. Find specific stretches for your sport or needs with powerful search and filtering tools. Track your progress with an in-app journal.

Highlights
  • 400+ stretching exercises with video demonstrations
  • Expert-led weekly flexibility workouts
  • Search, filter, and substitute functions
  • Novice and experienced training tracks
  • In-app training journal
  • Tutorial videos and FAQ resource library
Features
Read full description

Unlock Your Ultimate Flexibility with Stretch Strong! Over 400+ stretching exercises and growing! With search, filtering, and substitution functions, you'll be able to explore a world of flexibility training you can't find anywhere else online! With Jon Call (@jujimufu), a flexibility expert with over 20 years of experience competing in Martial Arts, Bodybuilding, and Strength Sports, you'll get new weekly flexibility workouts created by him (that he does himself!) that you can incorporate into your training. The weekly workouts are quick and effective, demanding only 1 hour per week of total work to see improvements for even the busiest or biggest athletes out there! There are two versions of the weekly workouts: a novice version and an experienced version that you can jump between. Most flexibility apps out there are AI abominations with no link to reality or real people. Stretch Strong demystifies flexibility training and has busy people and actual athletes in mind. We make flexibility convenient but also specific. Just search the database for stretches related to your sport or need and try them out! Stretch Strong has features that help make it incredibly easy for you to continue stretching with a multitude of customizations. With the Stretch Strong app, you can: – Explore explanations and in-app video demonstrations for every movement in our exercise library of 400+ movements, many of which you've never seen anywhere else! – Navigate the exercise library with filter, substitute, and search functions to find the stretch you need when you need it quickly! – Stay updated with weekly videos and notes with the exact flexibility training focus of any given week, as well as the broader context of where we are in a flexibility training cycle. – Learn with our extensive Tutorial Video and FAQ resource library to help you understand flexibility training principles, techniques, and considerations that can affect your stretching. – Get a new week of flexibility programming every Sunday with two training tracks: Novice and Experienced. – Use an in-app training journal with references to recent performance to track your results. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Chalk Performance Training4 screens
Stretch Strong4 screens

Verdict

The call

The clearest difference is rating: Stretch Strong at 4.4 against Chalk Performance Training's 3.8. Chalk Performance Training's advantage is in-app purchases (none vs 3). On price, review sentiment, ratings volume and update cadence 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. Stretch Strong sells 3 in-app purchases, starting at $8.99 per month. Chalk Performance Training asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stretch Strong holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 164 and 62 respectively. Written reviews point the same way: 65% of Chalk Performance Training's written reviews are positive against 67% of Stretch Strong's.

UpkeepUpdate frequency

Chalk Performance Training ships an update every 5 months, Stretch Strong every 3 months. The most recent releases landed on September 19, 2026 and July 5, 2026 respectively.

Scorecard3 real differences · 7 level
Chalk Performance Training versus Stretch Strong: the parameters behind the verdict, then further details
ParameterChalk Performance TrainingStretch Strong
PriceFreeFree
Rating3.8 (164 ratings)4.4 (62 ratings) — better
Positive reviews65.5% of reviews66.7% of reviews — better
Number of ratings164 — better62
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size44 MB139 MB
Age rating4+17+
DeveloperChalk Performance TrainingTrainmakr LLC

Customer experience

Chalk Performance Training

All ratings164 ratings
Positive67.1%
Neutral5.5%
Negative27.4%
Written reviews113 reviews
Positive65.5%
Neutral3.5%
Negative31.0%

Stretch Strong

All ratings62 ratings
Positive85.5%
Neutral1.6%
Negative12.9%
Written reviews18 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Chalk Performance Training

Reported bugs

4 issues
  • Timer resets when switching apps
  • Inability to log completed sets
  • Workout history not transferring from previous app
  • Difficulty creating custom workouts

Requested features

5 requests
  • Add option to disable audio during workouts
  • Improve ability to enter weights and reps manually
  • Provide more customization options for workouts
  • Implement seamless sync across devices
  • Add support for Apple Watch integration

Stretch Strong

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Chalk Performance Training

No in-app purchases

3 purchases

Stretch Strong

Subscriptions3
  • Monthly7 Days trial$8.991 Month
  • Quarterly7 Days trial$25.003 Months
  • Yearly7 Days trial$89.991 Year

Questions

Is Chalk Performance Training free?
Chalk Performance Training is free to download, with no in-app purchases.
Is Stretch Strong free?
Stretch Strong is free to download, with in-app purchases available.
Which has better reviews, Chalk Performance Training or Stretch Strong?
Stretch Strong is rated higher. Chalk Performance Training averages 3.8 out of 5 from 164 ratings, while Stretch Strong averages 4.4 from 62 ratings.
Do Chalk Performance Training or Stretch Strong have ads?
Neither Chalk Performance Training nor Stretch Strong shows ads.
Which is updated more often, Chalk Performance Training or Stretch Strong?
Chalk Performance Training ships an update every 5 months, and Stretch Strong every 3 months. Most recently, Chalk Performance Training was updated on September 19, 2026 and Stretch Strong on July 5, 2026.

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