Kardiograph Klassik
75
Quality Score
Strong
Kardiograph Klassik
Medium confidence
✍️ bumetric analysis
“
Kardiograph Klassik is an iOS app from MacroPinch Ltd. in the Health & Fitness category, currently rated 4.7★ across 3,454 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 75: 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
$10.1K
per month
→
12-mo forecast
$10.5K – $21.9K
per month
→
24-mo forecast
$13.0K – $38.9K
per month
MID tierFREE
💡 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
$70K
↳ What it cost to build · not monthly revenue
Likely range $50K – $95K
$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 |
| ⚙ Health & Fitness complexity ×1.40 | +$20K |
Total estimate
$70K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$225K
↳ What it would sell for · not monthly revenue
Marketplace range $175K – $300K · 19× 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 ≥ 4.7 (premium) | +15% |
| 🏷 Health & Fitness category multiple | +10% |
Final multiple
19× MRR
👥 Estimated audience size
240K
Lifetime downloads (US-equivalent)
Monthly active
52K
Daily active
18K
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
34% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$10.1K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
Direction
Headwinds: review-mined risks present
6 months
$9.6K – $16.0K
12 months
$10.5K – $21.9K
24 months
$13.0K – $38.9K
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
Stalled · 40/100MID TIERFREE (NO MONETIZATION)no growth momentumGrowth Velocity
5.0
Founder Strength
5.8
Product Quality
7.0
Revenue Strength
4.0
Monetization Maturity
0.5
Defensibility
6.0
Market Position
2.0
Operational Safety
1.6
- 💰 Revenue: Modest — $7K - $15K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.7★ across 3,454 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 2426d ago — possibly dormant.
- ⚠️ Risk: High — scam/fraud mentions detected, bug mentions above category norm, rating drift -1.26 ★ (recent 50 vs lifetime).
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 12-22× monthly = $121K-$222K. Discount applied for operational risk..
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 10 of 10 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 (4.7★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Low install base (3,454 ratings)METRIC | +$1,500 | |
| Mature app (14y old)METRIC | +$1,500 | |
| Multilingual (15 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 |
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 · v2.9.12
• Optimized for iOS 13.1
• Support for Dark Mode
• Support for the new iPad 10.2"
• Support for Dark Mode
• Support for the new iPad 10.2"
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Kardiograph Klassik
- Developer
- MacroPinch Ltd.
- Bundle ID
- com.macropinch.cardiograph
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- BG, NL, EN, FR, DE, EL, IT, JA, KO, PT, RU, ZH, ES, SV, TR
Company
- Website
- Not found
- Tagline
- Welcome to MacroPinch.com! Mobile Apps Developer
- Description
- MacroPinch, creator of numerous successful iOS and Android apps, including Cardiograph, Weather, MyGrocery, Alarm Clock, and more...
- 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
- $11.9K/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
- facebook facebook.com/macropinch · twitter twitter.com/macropinch
- support@macropinch.com
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth3,454 ratings+676% lifetimeShow 3-year history estimate ▾
Tracked (52 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.
💰Pricing History$0.00 → $0.99 (+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
Cardiograph is an application which measures your heart rate. You can save your results for future reference, keep track of multiple people with individual profiles, add notes and locations, and even print out your measurements for sharing or safe keeping.
Cardiograph uses your device's built-in camera to take pictures of your fingertip and calculate your heart's rhythm - the same approach used by professional medical equipment!
"I know you have the disclaimer on the screen but I don't care, Cardiograph saved my life.… View full description on the official store →
Cardiograph uses your device's built-in camera to take pictures of your fingertip and calculate your heart's rhythm - the same approach used by professional medical equipment!
"I know you have the disclaimer on the screen but I don't care, Cardiograph saved my life.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 18 MB🔞 4+📱 iOS 8.0+🔖 v2.9.12🔄 updated 0d ago🌐 BG, NL, EN, FR, DE +10📂 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 →
2026-05
💲
Went paid — introduced $0.99 price point
2026-03
⭐
Rating ↑ 3.89 → 4.60 (improved 0.71★)
2026-03
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
2024-05
📈
Crossed 500 ratings — social-proof flywheel kicking in
2012-10
📈
Crossed 100 ratings — social-proof flywheel kicking in
2012-09
📈
Crossed 50 ratings — social-proof flywheel kicking in
2012-08
📈
Crossed 10 ratings — social-proof flywheel kicking in
2012-08
⭐
Rating ↓ 4.29 → 3.88 (dropped 0.41★)
2012-08
🚀
First tracked snapshot — initial data captured
2012-08
⭐
Rating ↓ 5.00 → 4.50 (dropped 0.50★)
🗣
Voice of Customer
Based on 900 reviews across 9 markets● 63% positive · ● 24% neutral · ● 13% negative · Rating drift: -1.26★ (declining — recent 50: 3.44★ vs lifetime: 4.7★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇮🇳 IN
+0.62
🇦🇺 AU
+0.55
🇺🇸 US
+0.49
🇬🇧 GB
+0.38
🇨🇦 CA
+0.29
🇫🇷 FR
+0.05
🇧🇷 BR
+0.03
🇯🇵 JP
+0.01
🇩🇪 DE
-0.09
Top praise themes
heart rate ×67 muito bom ×22 seems accurate ×12 blood pressure ×11 keep track ×11 easy accurate ×7 it's easy ×7 pretty accurate ×7
Top complaint themes
doesn't work ×40 heart rate ×27 waste money ×17 doesn work ×8 ipad mini ×7 work iphone ×6 don't waste ×6 fonctionne plus ×6
Risk signals
Refund mentions: 1.0% Bug mentions: 7% Fraud / scam mentions: 0.6%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.68471★ | 425 | 4.68471★ this version |
| 🇧🇷 BR | 4.74509★ | 1,730 | 4.74509★ this version |
| 🇨🇦 CA | 4.60264★ | 755 | 4.60264★ this version |
| 🇩🇪 DE | 4.60119★ | 1,853 | 4.60119★ this version |
| 🇫🇷 FR | 4.52505★ | 1,657 | 4.52505★ this version |
| 🇬🇧 GB | 4.60454★ | 440 | 4.60454★ this version |
| 🇮🇳 IN | 4.72893★ | 273 | 4.72893★ this version |
| 🇯🇵 JP | 4.38594★ | 868 | 4.38594★ this version |
| 🇺🇸 US | 4.70142★ | 3,453 | 4.70142★ 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 Kardiograph Klassik: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by MacroPinch Ltd.
View all →📦 Portfolio summaryINDIE studio
3apps·$12K/mocombined
⚠ Concentrated — top app contributes 96% of combined revenue (single-app dependency)
About this analysis
Why medium confidence: 3,454 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Kardiograph Klassik make per month?▴
Based on our ML-calibrated revenue forecast, Kardiograph Klassik earns approximately $11K/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 Kardiograph Klassik?▴
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 Kardiograph Klassik?▴
Kardiograph Klassik is published by MacroPinch Ltd. 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 Kardiograph Klassik's BU Score?▴
Kardiograph Klassik has a BU Score of 75/100 (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.