Basal Body Temperature Calc.
19
Quality Score
Niche
Basal Body Temperature Calc.
Low confidence
✍️ bumetric analysis
“
Basal Body Temperature Calc. is an iOS app from Gianluca Natalini in the Education category, currently rated 1.3★ across 18 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 19: Niche (micro-niche or pre-traction stage). For a Education app, that means micro-niche or pre-traction stage. 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
$60K
↳ What it cost to build · not monthly revenue
Likely range $45K – $80K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Slow ROI — current MRR is well below build cost
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 |
| ⚙ Education complexity ×1.20 | +$10K |
Total estimate
$60K
🔬
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)
Direction
Headwinds: rating drift may slow acquisition
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
Stalled · 35/100MID TIERno growth momentumGrowth Velocity
5.0
Founder Strength
4.3
Product Quality
1.0
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
6.0
Market Position
2.0
Operational Safety
5.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 1.28★ across 18 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 1658d ago — possibly dormant.
- ⚠️ Risk: Elevated — dormant (1658d since update).
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 18-32× monthly = $90K-$160K.
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 5 of 5 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 | |
| Below-average rating (1.3★)METRIC | −$1,500 | |
| Mature app (16y old)METRIC | +$1,500 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (18 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 · v1.6
- Minor bugs fixed
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Basal Body Temperature Calc.
- Developer
- Gianluca Natalini
- Bundle ID
- com.GianlucaNataliniNGCYBIT.BasalBodyTemperatureCalculator
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 17+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- NGCYBIT Robotics
- Description
- NGCYBIT - Gianluca Natalini FREE apps, books and music
- 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
- $86/mo
- Top-grossing rank
- Outside top 100 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- twitter.com/GianlucaNat
- it.linkedin.com/in/gianlucanatalini
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
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/ngcybit · instagram instagram.com/natalinigianluca · linkedin it.linkedin.com/in/gianlucanatalini · twitter twitter.com/GianlucaNat · youtube youtu.be/NOe88uqsC94?si=wLHmh8XgAPMjRlI_
- Not found
- Phone
- Not found
- Contact page
- ngcybit.it/iTunesApp/people/contact-u…
- About page
- Not found
📈Ratings growth18 ratings+1700% lifetimeShow 3-year history estimate ▾
Tracked (4 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
"Basal Body Temperature (BBT) Calculator" is a program that helps women in the writing, understanding and archiving (for future reference) of diagrams that illustrate the evolution over the time of their basal body temperature (measured near vaginal area upon waking, before getting out of bed). The resulting diagram is very useful for estimating the days of ovulation and may therefore be a useful tool to identify the fertile period. The available medical documentations, even on the internet, explains in greater detail the utility of managing this type of information/diagrams.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 2 MB🔞 17+📱 iOS 15.0+🔖 v1.6🔄 updated 0d ago🌐 EN📂 Education💰 Paid
📅
What Worked™ · Development Pipeline
5 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 ↓ 1.50 → 1.00 (dropped 0.50★)
2026-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2010-02
⭐
Rating ↑ 1.00 → 1.50 (improved 0.50★)
2010-02
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 1.33333★ | 3 | 1.33333★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇨🇦 CA | 1.75★ | 4 | 1.75★ this version |
| 🇩🇪 DE | 1★ | 1 | 1★ this version |
| 🇫🇷 FR | 0★ | 0 | — |
| 🇬🇧 GB | 1.5★ | 2 | 1.5★ this version |
| 🇮🇳 IN | 0★ | 0 | — |
| 🇯🇵 JP | 0★ | 0 | — |
| 🇺🇸 US | 1.27777★ | 18 | 1.27777★ 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
More by Gianluca Natalini
View all →📦 Portfolio summaryINDIE studio
3apps·$373/mocombined
Lead-app heavy — top app contributes 54%
About this analysis
Why low confidence: only 18 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
Basal Body Temperature Calc. is a small / niche iOS app in the education space with weak public traction — only 18 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 Basal Body Temperature Calc. make per month?▴
Our model estimates Basal Body Temperature Calc. earns roughly $86/mo, but with only 18 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 Basal Body Temperature Calc.?▴
Browse the full Education 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 Basal Body Temperature Calc.?▴
Basal Body Temperature Calc. is published by Gianluca Natalini 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 Basal Body Temperature Calc.'s BU Score?▴
Basal Body Temperature Calc. has a BU Score of 19/100 (Niche). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.