Stretch Strong vs NBSTrainingSystems
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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/
NBSTrainingSystems
Read full descriptionHide full description
NBS Coaching is the private client portal for live, individualized fitness coaching between one client and one human NBS coach. Access to paid coaching features requires the separate purchase of one of the three auto-renewable subscriptions described below through Apple's In-App Purchase. Each subscription includes scheduled one-to-one coaching, training tools, workout logging, progress tracking, check-ins, education, and individualized guidance according to the selected service level. NBS Managed includes an NBS-managed training program, weekly coaching review, and direct coaching messages. Builder Weekly includes the full workout and program builder, weekly coaching review, and direct coaching messages. Builder Monthly includes the full workout and program builder, monthly coaching review, and progress, check-in, and calendar tools. Clients can follow their program, log workouts, share check-ins and progress, and review personalized feedback. Existing NBS website customers may sign in and continue using access already associated with their NBS account. App Store customers can restore eligible purchases from the Subscription screen in Settings. Payment is charged to the customer's Apple ID at confirmation. Subscriptions renew automatically unless cancelled in App Store settings at least 24 hours before the end of the current period. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: NBSTrainingSystems at every 3 days against Stretch Strong's every 3 months. On price, ads, in-app purchases 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
Both are free to download. Stretch Strong sells 3 in-app purchases, starting at $8.99 per month and NBSTrainingSystems sells 3 in-app purchases, starting at $49.99 per month. Whichever you choose, the download price is not the number that matters.
Stretch Strong ships an update every 3 months, NBSTrainingSystems every 3 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | Stretch Strong | NBSTrainingSystems |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (62 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 62 — better | — |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 119 MB | 80 MB |
| Age rating | 17+ | 12+ |
| Developer | Trainmakr LLC | Joseph Patch |
In-app purchases
Stretch Strong
- Monthly7 Days trial$8.991 Month
- Quarterly7 Days trial$25.003 Months
- Yearly7 Days trial$89.991 Year
NBSTrainingSystems
- Builder + Monthly Coaching$49.991 Month
- Builder + Weekly Coaching$99.991 Month
- NBS-Managed Coaching$199.991 Month
Questions
Is Stretch Strong free?
Is NBSTrainingSystems free?
Do Stretch Strong or NBSTrainingSystems have ads?
Which is updated more often, Stretch Strong or NBSTrainingSystems?
Other comparisons















