42
BU Score
Emerging
Feevy – Fieber Tagebuch
✍️ 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.
Our BU Score puts it at 42: Emerging (early traction worth watching). For a Education app, that means early traction worth watching.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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 (9y 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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Sep 24
Jan 25
Apr 25
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 30 MB🔞 4+📱 iOS 9.0+🔖 v1.1🔄 updated 7y ago🌐 EN, DE📂 Education💰 Free🚀 Launched 2016 (9y old)
📝 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. Be perfectly prepared for your next visit to the doctor!
BEAUTIFUL CHARTS
Entering data is worthless if you can’t analyze it later. Feevy comes with a beautiful and very detailed interactive chart, which makes it easy to get a quick overview, as well as to analyze temperature curves in more detail. You can freely zoom and pan it to see all the details you need.
PRINT AND SHARE YOUR DATA
Of course you can also 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.
TRACK MULTIPLE PEOPLE
Feevy lets you track the fever curves for multiple people. It is perfect for keeping track of your children's conditions and illnesses. To represent your family with some personality, Feevy comes with a set of cute profile icons to choose from.
SYNC WITH FAMILY MEMBERS
Especially if you use Feevy to track your kids' illnesses, you will appreciate its sync functionality. No matter who measures the temperature or administers medication, both parents will always see the same data on their devices.
UNIVERSAL APP
Feevy supports both iPhone and iPad, including iPad multitasking (Slide Over and Split View). Use your iPhone while on the go or to quickly enter a new measurement, and use the iPad to have a detailed look at the charts.
Feedback is always welcome: feedback@feevyapp.com or via Twitter @feevyapp.
IMPORTANT
In case of fever and sickness, please always consult your doctor. Using this app to track body temperature and symptoms is not a substitute for a visit to the doctor!
OF COURSE YOU CANNOT MEASURE YOUR BODY TEMPERATURE WITH THIS APP! You can only record, visualize and archive the measurements obtained with a fever thermometer.
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. Be perfectly prepared for your next visit to the doctor!
BEAUTIFUL CHARTS
Entering data is worthless if you can’t analyze it later. Feevy comes with a beautiful and very detailed interactive chart, which makes it easy to get a quick overview, as well as to analyze temperature curves in more detail. You can freely zoom and pan it to see all the details you need.
PRINT AND SHARE YOUR DATA
Of course you can also 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.
TRACK MULTIPLE PEOPLE
Feevy lets you track the fever curves for multiple people. It is perfect for keeping track of your children's conditions and illnesses. To represent your family with some personality, Feevy comes with a set of cute profile icons to choose from.
SYNC WITH FAMILY MEMBERS
Especially if you use Feevy to track your kids' illnesses, you will appreciate its sync functionality. No matter who measures the temperature or administers medication, both parents will always see the same data on their devices.
UNIVERSAL APP
Feevy supports both iPhone and iPad, including iPad multitasking (Slide Over and Split View). Use your iPhone while on the go or to quickly enter a new measurement, and use the iPad to have a detailed look at the charts.
Feedback is always welcome: feedback@feevyapp.com or via Twitter @feevyapp.
IMPORTANT
In case of fever and sickness, please always consult your doctor. Using this app to track body temperature and symptoms is not a substitute for a visit to the doctor!
OF COURSE YOU CANNOT MEASURE YOUR BODY TEMPERATURE WITH THIS APP! You can only record, visualize and archive the measurements obtained with a fever thermometer.
🆕 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.
This version also brings better support for many new devices.
Feedback is always welcome: feedback@feevyapp.com or via Twitter @feevyapp. And if you enjoy Feevy, it would be great if you could take the time to leave a review. Thanks!
This version also brings better support for many new devices.
Feedback is always welcome: feedback@feevyapp.com or via Twitter @feevyapp. And if you enjoy Feevy, it would be great if you could take the time to leave a review. Thanks!
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
- OG image
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 99 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth31 ratings+3000% lifetimeShow 3-year history estimate ▾
Tracked (21 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.
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.
Full revenue analysis
Read the article-style breakdown for Feevy – Fieber Tagebuch: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
