Feevy – Fieber Tagebuch
47
Quality Score
Emerging
Feevy – Fieber Tagebuch
Low confidence
✍️ bumetric analysis
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Feevy – Fieber Tagebuch is an iOS app from Daniel Rinser in the Education category, currently rated 3.5★ across 31 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 47: Emerging (early traction worth watching). For a Education app, that means early traction worth watching. 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
$200
per month
→
12-mo forecast
$100 – $931
per month
→
24-mo forecast
$100 – $2790
per month
MICRO 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
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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
📈
Pays back in ~2.1y 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 |
| ⚙ Education complexity ×1.20 | +$10K |
Total estimate
$60K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$30K
↳ What it would sell for · not monthly revenue
Marketplace range $20K – $35K · 12× MRR multiple
💸
~0.5× build cost (under-water)
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 < 3.5 (weak) | -18% |
| 🏷 Education category multiple | +6% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
12× MRR
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$200/mo · ML-estimated from 234 triggers
Growth rate
+8.0% MoM · MICRO tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$127 – $508
12 months
$100 – $931
24 months
$100 – $2.8K
Compound growth at +8.0% MoM (tier baseline for MICRO). Range widens with horizon — typical noise band ±60% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Insufficient data · 29/100MICRO TIERtoo early to scoreRevenue Strength
2.3
Product Quality
2.8
Market Position
0.0
Growth Velocity
5.0
Defensibility
4.5
Operational Safety
5.0
Founder Strength
3.0
Monetization Maturity
1.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 3.45★ across 31 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 2822d ago — possibly dormant.
- ⚠️ Risk: Elevated — dormant (2822d 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 = $3K-$6K.
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 (3.5★)METRIC | −$1,500 | |
| Mature app (10y old)METRIC | +$1,500 | |
| priceyREVIEW | −$800 | |
| Pre-traction phase (31 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 · v1.1
Now, you can print and export your data! This way you can bring your fever curve with you to the doctor or even send it via e-mail. The PDF contains all measurements, medications and notes, as well as a full-page chart showing the temperature curve.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Feevy – Fieber Tagebuch
- Developer
- Daniel Rinser
- Bundle ID
- de.danielrinser.feevy
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- Languages
- EN, DE
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- 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
- $2.4K/mo
- Top-grossing rank
- Outside top 100 in US Education
- 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.
📈Ratings growth31 ratings+3000% lifetimeShow 3-year history estimate ▾
Tracked (22 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 → $2.99 (+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
Do your children often have a fever? Do you sometimes get confused remembering when exactly it started, how it progressed and what other symptoms occurred? Having trouble explaining the exact course of the fever to the pediatrician? Keep track of body temperatures and medication for your whole family with Feevy.
TEMPERATURE, MEDICATION AND NOTES
With Feevy you can not only record temperature measurements, but also track medications and enter text notes. This way, you can verify if medication was effective and capture additional information, e.g. regarding the patient’s condition.… View full description on the official store →
TEMPERATURE, MEDICATION AND NOTES
With Feevy you can not only record temperature measurements, but also track medications and enter text notes. This way, you can verify if medication was effective and capture additional information, e.g. regarding the patient’s condition.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 30 MB🔞 4+📱 iOS 9.0+🔖 v1.1🔄 updated 0d ago🌐 EN, DE📂 Education💰 Free
📅
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 ↓ 3.80 → 3.45 (dropped 0.35★)
2026-05
💲
Went paid — introduced $2.99 price point
2026-03
⭐
Rating ↑ 3.30 → 3.80 (improved 0.50★)
2020-12
📈
Crossed 10 ratings — social-proof flywheel kicking in
2018-12
⭐
Rating ↓ 3.17 → 2.86 (dropped 0.31★)
2017-11
⭐
Rating ↓ 3.33 → 2.75 (dropped 0.58★)
2017-06
⭐
Rating ↓ 4.50 → 3.33 (dropped 1.17★)
2017-06
⭐
Rating ↓ 5.00 → 4.50 (dropped 0.50★)
2017-03
🚀
First tracked snapshot — initial data captured
🔔
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📝 Description
95
BU Score · Transcendent
About this analysis
Why low confidence: only 31 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Feevy – Fieber Tagebuch make per month?▴
Based on our ML-calibrated revenue forecast, Feevy – Fieber Tagebuch earns approximately $2.4K/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 Feevy – Fieber Tagebuch?▴
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 Feevy – Fieber Tagebuch?▴
Feevy – Fieber Tagebuch is published by Daniel Rinser 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 Feevy – Fieber Tagebuch's BU Score?▴
Feevy – Fieber Tagebuch has a BU Score of 47/100 (Emerging). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.