HeartWatch: Heart Rate Monitor
77
Quality Score
Strong
HeartWatch: Heart Rate Monitor
High confidence
✍️ bumetric analysis
“
HeartWatch: Heart Rate Monitor is an iOS app from Tantsissa in the Health & Fitness category, currently rated 4.7★ across 13,601 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 77: Strong (healthy traction). For a Health & Fitness app, that means healthy traction. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$1.2M
per month
→
12-mo forecast
$1.3M – $2.0M
per month
→
24-mo forecast
$1.5M – $2.8M
per month
BIG tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$85K
↳ What it cost to build · not monthly revenue
Likely range $65K – $115K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~3 months at current MRR
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱 MVP baseline (design + 1-store ship) | +$28K |
| 📱 5 unique screens × $4.5K | +$22K |
| 📦 Asset bundle (73 MB) | +$9K |
| ⚙ Health & Fitness complexity ×1.40 | +$23K |
Total estimate
$85K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$600K
↳ What it would sell for · not monthly revenue
Marketplace range $425K – $700K · 18× MRR multiple
💸
~7.1× return on build cost
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺 Ad-supported base | 15× MRR |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Health & Fitness category multiple | +10% |
Final multiple
18× MRR
👥 Estimated audience size
950K
Lifetime downloads (US-equivalent)
Monthly active
205K
Daily active
71K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲 Health & Fitness engagement | ~70 installs / rating |
| 🔁 Health & Fitness D30 retention | 22% |
| 📍 DAU / MAU stickiness | 0.35 |
DAU / MAU
35% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$1.2M/mo · ML-estimated from 234 triggers
Growth rate
+2.5% MoM · BIG tier baseline (compound monthly)
6 months
$1.2M – $1.6M
12 months
$1.3M – $2.0M
24 months
$1.5M – $2.8M
Compound growth at +2.5% MoM (tier baseline for BIG). Range widens with horizon — typical noise band ±15% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Mixed signals · 57/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
7.0
Product Quality
9.4
Revenue Strength
6.1
Monetization Maturity
1.0
Defensibility
6.0
Market Position
2.0
Operational Safety
9.0
- 💰 Revenue: Healthy — $480K - $2640K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.68★ across 13,601 reviews — exceptional (top 1% in category).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: last update 230d ago — slow cadence.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $21.6M-$38.4M.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
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 12 of 12 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (13,601 ratings)METRIC | +$5,500 | |
| Paid app ($8.99)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (10y old)METRIC | +$1,500 | |
| Multilingual (13 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| annoying adsREVIEW | −$1,100 |
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.
🆕 What's New · v4.9
Updated for iOS 26 and WatchOS 26.
Various fixes and maintenance.
Refer to our Whats New page for more detail: https://heartwatch.tantsissa.com/faq/whats-new… Full release notes →
Various fixes and maintenance.
Refer to our Whats New page for more detail: https://heartwatch.tantsissa.com/faq/whats-new… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- HeartWatch: Heart Rate Monitor
- Developer
- Tantsissa
- Bundle ID
- com.tantsissa.Heartbeat
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- NL, EN, FR, DE, IT, JA, KO, PT, RU, ZH, ES, SV, ZH
Company
- Website
- heartwatch.tantsissa.com
- Tagline
- 🇨🇳 🇯🇵 🇪🇸 🇰🇷 🇧🇷 🇳🇱 🇫🇷 🇩🇪 🇮🇹 🇹🇼 🇷🇺 🇸🇪
- Description
- 🇨🇳 🇯🇵 🇪🇸 🇰🇷 🇧🇷 🇳🇱 🇫🇷 🇩🇪 🇮🇹 🇹🇼 🇷🇺 🇸🇪
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $32.1K/mo
- Top-grossing rank
- Outside top 100 in US Health & Fitness
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
- Socials
- youtube youtube.com/channel/UCbpGH7bSOI5ZFvwn…
- Not found
- Phone
- Not found
- Contact page
- heartwatch.tantsissa.com/support
- About page
- Not found
📈Ratings growth13,601 ratings+32% lifetimeShow 3-year history estimate ▾
Tracked (58 weeks) Pre-tracking estimate (33 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.
💰Pricing History$0.00 → $8.99 (+0%)
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.
📝 About this app
"HeartWatch is so good, you’d think Apple built the app itself." John Patrick Pullen, Time Magazine. Top 5 in Health & Fitness in 100+ countries.
TOTAL PRIVACY
HeartWatch has no user analytics tracking. No advertising plugins. No 3rd party code. No data upload. Ask your "free" heart app if they can say the same.
ABOUT HEARTWATCH
HeartWatch is the best way to get a complete picture of all the health & fitness information captured by your Apple Watch.
NEWS
- Explore the different News Editions to learn all about your health progress and trends.… View full description on the official store →
TOTAL PRIVACY
HeartWatch has no user analytics tracking. No advertising plugins. No 3rd party code. No data upload. Ask your "free" heart app if they can say the same.
ABOUT HEARTWATCH
HeartWatch is the best way to get a complete picture of all the health & fitness information captured by your Apple Watch.
NEWS
- Explore the different News Editions to learn all about your health progress and trends.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 73 MB🔞 4+📱 iOS 11.0+🔖 v4.9🔄 updated 0d ago🌐 NL, EN, FR, DE, IT +8📂 Health & Fitness💰 Paid
📅
What Worked™ · Development Pipeline
11 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-05
💲
Went paid — introduced $8.99 price point
2026-04
⭐
Rating ↑ 4.17 → 4.60 (improved 0.43★)
2026-04
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
2026-02
📈
Crossed 500 ratings — social-proof flywheel kicking in
2025-10
🔧
Shipped update — v? → v4.9
2022-08
📈
Crossed 100 ratings — social-proof flywheel kicking in
2022-06
📈
Crossed 50 ratings — social-proof flywheel kicking in
2022-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2022-03
⭐
Rating ↑ 3.67 → 4.00 (improved 0.33★)
2022-03
⭐
Rating ↓ 5.00 → 3.67 (dropped 1.33★)
2022-03
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.71671★ | 1,059 | 4.71671★ this version |
| 🇧🇷 BR | 4.63333★ | 510 | 4.63333★ this version |
| 🇨🇦 CA | 4.64325★ | 1,651 | 4.64325★ this version |
| 🇩🇪 DE | 4.61971★ | 6,432 | 4.61971★ this version |
| 🇫🇷 FR | 4.49799★ | 996 | 4.49799★ this version |
| 🇬🇧 GB | 4.64585★ | 1,457 | 4.64585★ this version |
| 🇮🇳 IN | 4.66125★ | 431 | 4.66125★ this version |
| 🇯🇵 JP | 4.16578★ | 941 | 4.16578★ this version |
| 🇺🇸 US | 4.68341★ | 13,601 | 4.68341★ this version |
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for HeartWatch: Heart Rate Monitor: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Tantsissa
View all →📦 Portfolio summaryMID studio
4apps·$192K/mocombined
✓ Diversified — top app contributes 38%; risk spread across portfolio
About this analysis
Why high confidence: 13,601 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does HeartWatch make per month?▴
Based on our ML-calibrated revenue forecast, HeartWatch earns approximately $32K/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
What apps are like HeartWatch?▴
Browse the full Health & Fitness category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
Who makes HeartWatch?▴
HeartWatch is published by Tantsissa on the Apple App Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is HeartWatch's BU Score?▴
HeartWatch has a BU Score of 77/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.