46
BU Score
Emerging
Telefonkarte
✍️ bumetric analysis
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Telefonkarte is an iOS app from Andreas Amann in the Utilities category, currently rated 3.2★ across 6 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 46: Emerging (early traction worth watching). For a Utilities 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 8 of 8 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 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Below-average rating (3.2★)METRIC | −$1,500 | |
| Mature app (17y old)METRIC | +$1,500 | |
| slowREVIEW | −$1,200 | |
| Localized (5 languages)METRIC | +$600 | |
| Pre-traction phase (6 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 →💾 3 MB🔞 4+📱 iOS 11.0+🔖 v2.2.2🔄 updated 2y ago🌐 EN, FR, DE, SV, ZH📂 Utilities💰 Paid🚀 Launched 2008 (17y old)
📝 About this app
The ultimate iPhone calling card/IDD dialing application - save money when calling contacts from your iPhone by using one or more cards or carrier prefixes to get the best rates - even have the application automatically select the best card for you based on the selected number. Save money on all your international calls using the most popular calling card application for the iPhone. The application can also be used to route calls through a PBX system (no actual calling card required) or for Skype To Go calls.
Main features:
• Set up multiple phone/calling card accounts and easily switch between them - support for multiple access numbers per card.
• Automatic card selection based on contact and/or number prefix.
• Set up a list of favorite numbers to dial, select any number from your contacts, call a number from the recent calls placed from the application, or directly enter a phone number to be dialed.
• Full support for international prefixes (numbers starting with '+').
• Flexible call details setup allows for automatic dialing of most phone cards even if intermediate menu selections have to be made.
• Display local time for contact to be called (time zone lookup based on the phone number) - support for all international numbers.
• Card definitions can be shared between different devices via simple email export/import.
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Winner "iPhone Apps Excellence Award for 2008" (iPhonefootprint.com)!
Main features:
• Set up multiple phone/calling card accounts and easily switch between them - support for multiple access numbers per card.
• Automatic card selection based on contact and/or number prefix.
• Set up a list of favorite numbers to dial, select any number from your contacts, call a number from the recent calls placed from the application, or directly enter a phone number to be dialed.
• Full support for international prefixes (numbers starting with '+').
• Flexible call details setup allows for automatic dialing of most phone cards even if intermediate menu selections have to be made.
• Display local time for contact to be called (time zone lookup based on the phone number) - support for all international numbers.
• Card definitions can be shared between different devices via simple email export/import.
––––––––––––––––––––––
Winner "iPhone Apps Excellence Award for 2008" (iPhonefootprint.com)!
🆕 What's New · v2.2.2
Rebuild with the latest SDK to comply with AppStore policies. Minimum required version is now iOS 11.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Telefonkarte
- Developer
- Andreas Amann
- Bundle ID
- com.aamann.CallingCard
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN, FR, DE, SV, ZH
Company
- Website
- andreasamann.com
- Tagline
- iPhone, iPad, and iPod Touch Applications
- Description
- Not found
- 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
- $12.1K/mo
- Top-grossing rank
- Outside top 100 in US Utilities
- 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
- andreas amann <aamann@mac.com>
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth6 ratings+500% lifetimeShow 3-year history estimate ▾
Tracked (58 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 by Andreas Amann
View all →
Full revenue analysis
Read the article-style breakdown for Telefonkarte: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.