52
BU Score
Solid
Tennis Plus
✍️ bumetric analysis
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Tennis Plus is an iOS app from Jae Hyeon Park in the Health & Fitness category, currently rated 3.6★ across 109 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Our BU Score puts it at 52: 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.
📊 Performance Tracking LIVE
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Rating
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Reviews
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Forecast Revenue / mo
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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 6 of 6 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 | |
| 5 starREVIEW | +$1,800 | |
| Mature app (9y old)METRIC | +$1,500 | |
| slowREVIEW | −$1,200 | |
| Early-stage install base (109 ratings)METRIC | +$400 | |
| Single-language (English only)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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 7 MB🔞 4+📱 iOS 17.6+🔖 v1.7.1🔄 updated 2mo ago🌐 EN📂 Health & Fitness💰 Paid🚀 Launched 2016 (9y old)
📝 About this app
Enjoy your tennis with your Apple Watch! This is the first tennis activity tracker & swing analyzer app for Apple Watch. Just wear your watch on your wrist and play.
Tennis Plus : Tennis Tracker & Swing Analyzer Features
- Simple UI & Quick start
- Breakdown your shot and check your style (forehand, backhand, topspin, flat, slice, volley, smash, serve)
- Measure your swing speed & spin
- Video playback synced swing recognitions.
- Support right-hand and also left-hand grip player
- Real time detection of swings
- Energy efficient for battery life (Optimized & accurate algorithm)… View full description on the official store →
Tennis Plus : Tennis Tracker & Swing Analyzer Features
- Simple UI & Quick start
- Breakdown your shot and check your style (forehand, backhand, topspin, flat, slice, volley, smash, serve)
- Measure your swing speed & spin
- Video playback synced swing recognitions.
- Support right-hand and also left-hand grip player
- Real time detection of swings
- Energy efficient for battery life (Optimized & accurate algorithm)… View full description on the official store →
🆕 What's New · v1.7.1
** Redesigned Interface – We've completely overhauled the user interface with a cleaner, more modern design that's easier to navigate.
** Enhanced User Experience – Faster performance, improved accessibility, and streamlined workflows make tracking your tennis matches effortless.
** Enhanced User Experience – Faster performance, improved accessibility, and streamlined workflows make tracking your tennis matches effortless.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Tennis Plus
- Developer
- Jae Hyeon Park
- Bundle ID
- Jae-Hyeon-Park.Tennis
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN
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
- $3.6K/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
- Not found
- 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/id1603519753
⭐Recent App Store Reviews42 latest · avg 2.31★ · 16.7% 5★ · 47.6% 1★
5★7 (17%)
4★3 (7%)
3★6 (14%)
2★6 (14%)
1★20 (48%)
+0 ratings/week
Praise: great ×10 love ×4 recommend ×2 amazing ×1Complaints: crash ×6 bug ×1 broken ×1
Top positive
★★★★★ Tennis Plus Does Not Work With iOS11
Working fine with both the iOS AND watch updates.…
★★★★★ Great Functionality
Great app. A lot more accurate than expected. Definitely worth purchasing if you like to analyze your tennis performance.…
Top negative
★☆☆☆☆ No longer working
The app worked for a couple of years. Now it no longer is giving me the data detailed data of ground stroke speed or rally length. It is no longer linked to my Apple Health app. Contacted developer and never heard back.…
★☆☆☆☆ Is This a Joke?
I bought this app for $10 because I didn’t want to upgrade to the new Apple Watch Series 7 in order to get the new service speed feature. From what is described in this app, it is supposed to measure your service speed. This is misleading. …
📈Ratings growth109 ratings+10800% lifetimeShow 3-year history estimate ▾
Tracked (44 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.
More by Jae Hyeon Park
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Full revenue analysis
Read the article-style breakdown for Tennis Plus: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.