Cardi Mate: Heart Rate Monitor
80
Quality Score
Excellent
Cardi Mate: Heart Rate Monitor
High confidence
✍️ bumetric analysis
“
Cardi Mate: Heart Rate Monitor is an iOS app from Gismart Limited in the Health & Fitness category, currently rated 4.7★ across 48,635 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 80: Excellent (strong product-market fit). For a Health & Fitness app, that means strong product-market fit. 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
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID 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
$125K
↳ What it cost to build · not monthly revenue
Likely range $95K – $170K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~6 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 (219 MB) | +$40K |
| ⚙ Health & Fitness complexity ×1.40 | +$36K |
Total estimate
$125K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$400K
↳ What it would sell for · not monthly revenue
Marketplace range $300K – $500K · 18× MRR multiple
💸
~3.2× 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
3.4M
Lifetime downloads (US-equivalent)
Monthly active
745K
Daily active
260K
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
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Below median · 51/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
6.1
Product Quality
9.4
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
4.7
Market Position
2.0
Operational Safety
9.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.69★ across 48,635 reviews — exceptional (top 1% in category).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: last update 318d 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 = $90K-$160K. Portfolio play ($22K/mo combined) commands premium.
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 14 of 14 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (48,635 ratings)METRIC | +$5,500 | |
| subscriptionREVIEW | +$2,500 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| cancelledREVIEW | −$1,500 | |
| excellent appREVIEW | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| free trialREVIEW | +$1,200 | |
| too expensiveREVIEW | −$1,000 | |
| priceyREVIEW | −$800 | |
| Established app (4y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Localized (7 languages)METRIC | +$600 |
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 · v1.67
We hope you’re enjoying the app! Please, keep it regularly updated to always have our greatest features and latest improvements.
- Performance and stability improvements
- Bugs fixes
- Performance and stability improvements
- Bugs fixes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Cardi Mate: Heart Rate Monitor
- Developer
- Gismart Limited
- Bundle ID
- heart.rate.harmonybit.com
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN, FR, DE, IT, PT, ZH, ES
Company
- Website
- Not found
- Tagline
- Gismart is a mobile app developer with award-winning products in Health, Wellness, Utilities & Music and over 1 billion downloads across the globe.
- Description
- Gismart creates mobile apps that help millions of people around the world get healthier and enhance their well-being. Find the perfect app for your wellness journey today!
- 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
- $22.5K/mo
- Top-grossing rank
- 🇧🇷#26 /100 🇫🇷#97 /100
- 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
- facebook facebook.com/gismartmusic · instagram instagram.com/gismartpeople · linkedin linkedin.com/company/gismart
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- gismart.com/about-us
📈Ratings growth48,635 ratings+115% lifetimeShow 3-year history estimate ▾
Tracked (48 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Top Countries — Grossing Rank2 countries
🇧🇷BR#26 /100
🇫🇷FR#97 /100
📊Category Rank Trajectory#26 now · best #24 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
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
Take control over your health with Cardi Mate. Knowing your vital signs is half the battle in protecting your well-being and improving your lifestyle. Think of Cardi Mate as your personal healthcare diary. In the app, you can track and record your vital signs — all in one easy-to-access place. Store data, use the app to monitor changes in your charts and keep an eye on your health stats. Track your health progress as you go and make sure to record those vital details in the diary.
FEATURES:
- Personal statistics. Track changes in your vitals, monitor your heart rate, and more.… View full description on the official store →
FEATURES:
- Personal statistics. Track changes in your vitals, monitor your heart rate, and more.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 219 MB🔞 4+📱 iOS 16.0+🔖 v1.67🔄 updated 0d ago🌐 EN, FR, DE, IT, PT +2📂 Health & Fitness💰 Paid
📅
What Worked™ · Development Pipeline
10 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 →
2026-04
⭐
Rating ↑ 4.23 → 4.69 (improved 0.46★)
2026-04
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2024-07
📈
Crossed 100 ratings — social-proof flywheel kicking in
2024-06
📈
Crossed 50 ratings — social-proof flywheel kicking in
2024-05
⭐
Rating ↓ 4.11 → 3.80 (dropped 0.31★)
2024-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
2024-05
⭐
Rating ↓ 4.71 → 4.25 (dropped 0.46★)
2024-05
🚀
First tracked snapshot — initial data captured
2024-05
⭐
Rating ↓ 5.00 → 4.33 (dropped 0.67★)
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.4451★ | 1,530 | 4.4451★ this version |
| 🇧🇷 BR | 4.80485★ | 15,675 | 4.80485★ this version |
| 🇨🇦 CA | 4.49573★ | 2,816 | 4.49573★ this version |
| 🇩🇪 DE | 4.51724★ | 667 | 4.51724★ this version |
| 🇫🇷 FR | 4.52123★ | 5,251 | 4.52123★ this version |
| 🇬🇧 GB | 4.57416★ | 2,299 | 4.57416★ this version |
| 🇮🇳 IN | 4.68817★ | 186 | 4.68817★ this version |
| 🇯🇵 JP | 4.35938★ | 128 | 4.35938★ this version |
| 🇺🇸 US | 4.68695★ | 48,647 | 4.68695★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Cardi Mate: 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 Gismart Limited
View all →📦 Portfolio summaryINDIE studio
4apps·$22K/mocombined
⚠ Concentrated — top app contributes 98% of combined revenue (single-app dependency)
About this analysis
Why high confidence: 48,635 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Cardi Mate make per month?▴
Based on our ML-calibrated revenue forecast, Cardi Mate earns approximately $22K/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 Cardi Mate?▴
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 Cardi Mate?▴
Cardi Mate is published by Gismart Limited 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 Cardi Mate's BU Score?▴
Cardi Mate has a BU Score of 80/100 (Excellent). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.