Comparison

Base Strength AI 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

Base Strength AI

This AI-powered fitness app delivers personalized strength training programs based on an expert's coaching methods. It adapts in real-time to your progress, offering an effective and affordable way to achieve your strength and size goals.

Highlights
  • AI-powered personalized training plans
  • Real-time program adjustments
  • Expert coaching style integration
  • Strength and size goal achievement
  • Affordable fitness experience
Features
Read full description

Take your training to another level with Alexander Bromley's distinctive coaching style powered by AI. Coach Bromley trained the AI to use his programming methods to create affordable, personalized, and highly effective training to help you reach your strength and size goals! Our A.I. Expert System Coaching Application will help users receive an individualized training experience that in real-time adjusts to the program. This platform's overall goal is to provide a totalized fitness experience at a fraction of the cost of 1-1 coaching. EvolveAI provides affordable expert coaching by uniting Alexander Bromley's coaching with AI to empower everyone to achieve their training goals. After taking the onboarding questionnaire you are required to set up a paid subscription before accessing the App, this unlocks the AI Strength Training features so you can get to work! The strength training uses Bromley's unique coaching style and programs to create a custom plan for your needs so you keep making progress toward your goals. Terms of use: https://www.basestrength.com/terms-of-use Health Disclaimer: https://www.basestrength.com/faqs Privacy Policy: https://www.basestrength.com/privacy-policy

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

Base Strength AI4 screens
Stretch Strong4 screens

Verdict

The call

The clearest difference is monetization model: Stretch Strong at free with in-app purchases against Base Strength AI's subscription. Stretch Strong also leads on review sentiment (67% vs 50%). Base Strength AI's advantage is update cadence (every 9 days vs every 3 months) and rating (4.7 vs 4.4). On price, ratings volume, ads and in-app purchases 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. Base Strength AI sells 3 in-app purchases, starting at $24.99 per month and Stretch Strong sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Base Strength AI holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 146 and 62 respectively. Written reviews complicate that: 50% of Base Strength AI's written reviews are positive against 67% of Stretch Strong's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Base Strength AI ships an update every 9 days, Stretch Strong every 3 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
Base Strength AI versus Stretch Strong: the parameters behind the verdict, then further details
ParameterBase Strength AIStretch Strong
PriceFreeFree
Rating4.7 (146 ratings) — better4.4 (62 ratings)
Positive reviews50.0% of reviews66.7% of reviews — better
Number of ratings146 — better62
Update frequencyEvery 9 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size171 MB119 MB
Age rating4+17+
DeveloperSkynet Coaching Inc.Trainmakr LLC

Customer experience

Base Strength AI

All ratings146 ratings
Positive93.8%
Neutral3.4%
Negative2.7%
Written reviews12 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

Stretch Strong

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

In-app purchases

3 purchases

Base Strength AI

Subscriptions3
  • BASE Strength3 Days trial$24.991 Month
  • Base Strength App3 Days trial$64.993 Months
  • Base Strength App3 Days trial$229.991 Year
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 Base Strength AI free?
Base Strength AI is free to download, with in-app purchases available.
Is Stretch Strong free?
Stretch Strong is free to download, with in-app purchases available.
Which has better reviews, Base Strength AI or Stretch Strong?
Base Strength AI is rated higher. Base Strength AI averages 4.7 out of 5 from 146 ratings, while Stretch Strong averages 4.4 from 62 ratings.
Do Base Strength AI or Stretch Strong have ads?
Neither Base Strength AI nor Stretch Strong shows ads.
Which is updated more often, Base Strength AI or Stretch Strong?
Base Strength AI ships an update every 9 days, and Stretch Strong every 3 months. Most recently, Base Strength AI was updated on October 15, 2026 and Stretch Strong on October 14, 2026.

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