67
BU Score
Solid
Stark Stretching
✍️ BU Analytics Review
“
Stark Stretching is an iOS app from Postra AB in the Health & Fitness category, currently rated 4.6★ across 167 ratings. Initial signal reads as mostly critical sentiment so far — users flag rough edges and unmet expectations.
Our BU Score puts it at 67 — Solid (established niche player). For a Health & Fitness app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 7 of 7 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.6★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (13y old)METRIC | +$1,500 | |
| Localized (7 languages)METRIC | +$600 | |
| Early-stage install base (167 ratings)METRIC | +$400 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 18 MB🔞 4+📱 iOS 12.0+🔖 v2.5.13🔄 updated 4y ago🌐 EN, FR, DE, IT, PT +2📂 Health & Fitness💰 Paid🚀 Launched 2012 (13y old)
📝 About this app
Optimise your results with Stark Stretch!
- Be inspired by 83 exercises presented in sharp HD video.
- Create your own personal workout.
- Get a full body workout with exercises in all ranges of difficulty
- While working out, follow the step by step workout-feature which take you through the workout using timers and your chosen specifics.
- The timers support different workout types including Tabata, HIIT and Circuit training.
- Find exercises targeting specific muscle groups.
Integration with Apple Health: Save burned calories and performed workouts.
Exercises are performed by, Denice Lundevall
- Be inspired by 83 exercises presented in sharp HD video.
- Create your own personal workout.
- Get a full body workout with exercises in all ranges of difficulty
- While working out, follow the step by step workout-feature which take you through the workout using timers and your chosen specifics.
- The timers support different workout types including Tabata, HIIT and Circuit training.
- Find exercises targeting specific muscle groups.
Integration with Apple Health: Save burned calories and performed workouts.
Exercises are performed by, Denice Lundevall
🆕 What's New · v2.5.13
* New name and icon
* Bugfixes
* Bugfixes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Stark Stretching
- Developer
- Postra AB
- Bundle ID
- se.virtualtrainer.VT-STRETCH
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN, FR, DE, IT, PT, ES, SV
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $19.1K/mo
- Top-grossing rank
- Outside top 100 in US Health & Fitness
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1868888984
📈Ratings growth167 ratings+16600% lifetimeShow 3-year history estimate ▾
Tracked (57 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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