40
BU Score
Emerging
Spieluhr App
✍️ BU Analytics Review
“
Spieluhr App is an iOS app from Sabrina Holzer in the Education category, currently rated 4.0★ across 1 ratings. Initial signal reads as no scraped reviews yet — judgment based on metadata only.
Our BU Score puts it at 40 — 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.
creator
📊 Performance Tracking LIVE
Loading…
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 4 of 4 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 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Good rating (4.0★)METRIC | +$800 | |
| Pre-traction phase (1 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.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 89 MB🔞 4+📱 iOS 9.2+🔖 v2.7🔄 updated 7y ago🌐 EN, DE📂 Education💰 Paid🚀 Launched 2017 (9y old)
📝 About this app
Your baby will love this app.
Choose from three beautifully instrumented melodies:
- Good evening Good Night
- Glitter, sparkling little star
- Hush Little Baby
Your advantages:
- The app also plays in the background (up to 90 minutes)
- minimum battery consumption
- Can be controlled via the lock screen
- Turns off automatically after desired duration
Choose from three beautifully instrumented melodies:
- Good evening Good Night
- Glitter, sparkling little star
- Hush Little Baby
Your advantages:
- The app also plays in the background (up to 90 minutes)
- minimum battery consumption
- Can be controlled via the lock screen
- Turns off automatically after desired duration
🆕 What's New · v2.7
Thanks for using the app!
New in this Version:
- We've added support for iPhone X
- Now its possible to configure the play duration presets
New in this Version:
- We've added support for iPhone X
- Now its possible to configure the play duration presets
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Spieluhr App
- Developer
- Sabrina Holzer
- Bundle ID
- de.jochen-holzer.ios.music-box-app
- 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
- $201/mo
- Top-grossing rank
- Outside top 100 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
- https://apps.apple.com/us/iphone/story/id1406503654
📈Ratings growth1 ratingsShow 3-year history estimate ▾
Tracked (1 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.
More Education
Duolingo – Sprachkurse
★ 4.7 · 5,156,487 reviews
ClassDojo
★ 4.7 · 3,861,803 reviews
Canvas by Instructure
★ 4.7 · 2,769,210 reviews
Remind: School Communication
★ 4.8 · 1,742,504 reviews
Gauth: AI Study Companion
★ 4.8 · 1,418,613 reviews
Quizlet: More than Flashcards
★ 4.8 · 1,074,494 reviews
PictureThis - Plant Identifier
★ 4.8 · 1,061,649 reviews
ABCmouse Classic
★ 4.5 · 993,689 reviews
Browse BU Analytics
📚 All 55,000+ Books
🜍 Alchemy & Hermeticism
🔮 Magic & Ritual
🌙 Witchcraft & Paganism
⭐ Astrology & Cosmology
🃏 Divination & Tarot
📜 Education
✡️ Kabbalah & Jewish Mysticism
🕉️ Mysticism & Contemplation
🕊️ Theosophy & Anthroposophy
🏛️ Freemasonry & Secret Societies
👻 Spiritualism & Afterlife
📖 Sacred Texts & Gnosticism
👁️ Supernatural & Occult Fiction
🧘 Spiritual Development
📚 Esoteric History & Biography
Info
About BU Analytics