Menstruation Kalender Pro
63
Quality Score
Solid
Menstruation Kalender Pro
Low confidence
✍️ bumetric analysis
“
Menstruation Kalender Pro is an iOS app from EFRAC in the Health & Fitness category, currently rated 4.7★ across 15 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 63: Solid (established niche player). For a Health & Fitness app, that means established niche player. 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
$975
per month
→
12-mo forecast
$853 – $3075
per month
→
24-mo forecast
$790 – $7113
per month
INDIE 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 ~4 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
$300K
↳ What it would sell for · not monthly revenue
Marketplace range $225K – $400K · 16× MRR multiple
💸
~4.3× 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% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
16× MRR
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$975/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$831 – $1.9K
12 months
$853 – $3.1K
24 months
$790 – $7.1K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Early-stage solo · 40/100INDIE TIERFREE (NO MONETIZATION)expected for tierGrowth Velocity
5.0
Founder Strength
5.3
Product Quality
3.2
Revenue Strength
3.0
Monetization Maturity
0.5
Defensibility
4.5
Market Position
2.0
Operational Safety
8.5
- 💰 Revenue: Marginal — $390 - $2439/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.67★ across 15 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: last update 286d 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 = $17K-$31K. Portfolio play ($18K/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 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 (4.7★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| Mature app (14y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Localized (6 languages)METRIC | +$600 | |
| Pre-traction phase (15 ratings)METRIC | −$300 |
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 · v6.6.1
• Improved user interface
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Menstruation Kalender Pro
- Developer
- EFRAC
- Bundle ID
- com.efrac.movcalu
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN, FR, DE, PL, RU, ES
Company
- Website
- Not found
- Tagline
- EFRAC
- Description
- Software for mobile phones, tablets, e-book readers and personal computers. Application development in Java (Android, J2ME midlets), HTML 5 (CSS, Javascript), Objective C, Swift.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $18.5K/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
Contacts & Socials data not yet collected for this app.
⭐Recent App Store Reviews49 latest · avg 4.1★ · 49.0% 5★ · 8.2% 1★
5★24 (49%)
4★14 (29%)
3★7 (14%)
2★0 (0%)
1★4 (8%)
+1 ratings/week
Praise: great ×18 love ×11 awesome ×4 recommend ×4 best ×3Complaints: crash ×1 hate ×1
Top positive
★★★★★ I love this app!
So my doctor told me to get an app to track my cycles for her to help her know how regulated they were and that was 2 years ago. I love this app and how accessible and easy it is to use!…
★★★★★ Good Reminder/Planning
This app is a good reminder for the LMP question that you are always asked at a doctor's visit.…
Top negative
★☆☆☆☆ Unsureandtrying
This app was suggested to me by a friend who got pregnant after one month. I am used to a different app so I am liking the simplicity of this one. However I bought the app and I see notification on the icon but there is no way to check them…
★☆☆☆☆ Not working! iOS7
Really?? Paid twice for this app and it's still not working!…
📈Ratings growth15 ratings+1400% 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 → $5.99 (+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
We spent many years creating the best period and ovulation tracker. We implemented all features requested by our users and put a lot of heart into the app.
Features:
• Automatically predicts menstruation periods.
• Keeps history of your menstrual cycles.
• Full integratation with the Health app (uses HealthKit framework).
• Spotlight Search: find your notes, symptoms or even the date of your next period.
• Contains a native Apple Watch app.
• Includes a Glance view for the Apple Watch.
• Includes a Notification Center widget (extension).
• Can track up to four different symptoms (e.g.… View full description on the official store →
Features:
• Automatically predicts menstruation periods.
• Keeps history of your menstrual cycles.
• Full integratation with the Health app (uses HealthKit framework).
• Spotlight Search: find your notes, symptoms or even the date of your next period.
• Contains a native Apple Watch app.
• Includes a Glance view for the Apple Watch.
• Includes a Notification Center widget (extension).
• Can track up to four different symptoms (e.g.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 3 MB🔞 4+📱 iOS 15.6+🔖 v6.6.1🔄 updated 0d ago🌐 EN, FR, DE, PL, RU +1📂 Health & Fitness💰 Paid
📅
What Worked™ · Development Pipeline
9 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
⭐
Rating ↑ 3.50 → 4.67 (improved 1.17★)
2026-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
2026-05
💲
Went paid — introduced $5.99 price point
2026-03
⭐
Rating ↓ 4.10 → 3.50 (dropped 0.60★)
2020-10
📈
Crossed 50 ratings — social-proof flywheel kicking in
2012-10
📈
Crossed 10 ratings — social-proof flywheel kicking in
2012-03
⭐
Rating ↓ 4.00 → 3.00 (dropped 1.00★)
2012-02
⭐
Rating ↑ 3.00 → 4.00 (improved 1.00★)
2012-01
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 83 reviews across 6 markets● 90% positive · ● 6% neutral · ● 4% negative · Rating drift: -0.29★ (declining — recent 50: 4.38★ vs lifetime: 4.67★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇦🇺 AU
+0.84
🇨🇦 CA
+0.78
🇬🇧 GB
+0.74
🇺🇸 US
+0.70
🇩🇪 DE
+0.35
🇫🇷 FR
+0.23
Top praise themes
keep track ×6 easy ×20 cycle ×11 period ×11 accurate ×11 it's ×9 awesome ×8 ovulation ×8
Top complaint themes
one ×6 free ×5 info ×5 after ×4 worth ×3 paid ×3
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 5★ | 3 | 5★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇨🇦 CA | 5★ | 6 | 5★ this version |
| 🇩🇪 DE | 3.5★ | 2 | 3.5★ this version |
| 🇫🇷 FR | 5★ | 1 | 5★ this version |
| 🇬🇧 GB | 4.66667★ | 3 | 4.66667★ this version |
| 🇮🇳 IN | 0★ | 0 | — |
| 🇯🇵 JP | 5★ | 1 | 5★ this version |
| 🇺🇸 US | 4.66667★ | 15 | 4.66667★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
About this analysis
Why low confidence: only 15 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
Menstruation Kalender Pro is a small / niche iOS app in the health & fitness space with weak public traction — only 15 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.
Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Menstruation Kalender Pro make per month?▴
Our model estimates Menstruation Kalender Pro earns roughly $18K/mo, but with only 15 ratings the confidence interval is wide. No founder-verified MRR is available for this app, so this is a model output calibrated against comparable apps in the same category. See methodology for the formula.
What apps are like Menstruation Kalender Pro?▴
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 Menstruation Kalender Pro?▴
Menstruation Kalender Pro is published by EFRAC 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 Menstruation Kalender Pro's BU Score?▴
Menstruation Kalender Pro has a BU Score of 63/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.