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53
BU Score
Solid

Mein Rechner (inkl. Währungen)

4.9 ✍️ Editor
✍️ BU Analytics Review

Mein Rechner (inkl. Währungen) is an iOS app from Joachim von Caron in the Finance category, currently rated 4.9★ across 8 ratings. Initial signal reads as no scraped reviews yet — judgment based on metadata only.

Our BU Score puts it at 53Solid (established niche player). For a Finance app, that means established niche player.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue 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
Excellent rating (4.9★)METRIC
+$2,200
Mature app (10y old)METRIC
+$1,500
Pre-traction phase (8 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 5 MB🔞 4+📱 iOS 13.6+🔖 v6.1.9🔄 updated 1y ago🌐 EN, DE📂 Finance💰 Paid🚀 Launched 2015 (10y old)

📝 About this app

//*** Version 6 for iOS 17 and watchOS 10 ***//
//*** Including Currency Exchange Calculator for iPhone, iPad and Apple Watch***//

The only one pocket calculator for iPhone, iPad, Apple Watch, Apple TV and also works as Today Widget, Message Extension and Keyboard.

Simple pocket calculator supports parentheses and memory functions.

See what you calculate.

Also as Today Widget, Message Extension or Keyboard possible - just enable it.

Calculate a number of days to an given date or show the weekday name of a given date.

Currency Exchange Calculator available for iPhones and Apple watch.

Please note: The Apple Watch calculator is small. Anyhow all on a single screen and the calculation step is always visible.

Apple Watch: You can choose between three screens:

- Big Buttons // Operators left
- Big Buttons // Operators right
- Smaller buttons // With parentheses

In addition you can disable the Function Screen. Then it is a simply calculator. Just go to the Watch Settings.

Support for Deep Pressure Gestures - or long press on older iPhones/ iPads:

M+ -> M-
MR -> Show only Memory
C -> AC
f(x) -> Display Currency Converter
pi -> Random number between 0...1
e -> Random integer number between 0...n
% -> deferred payment credit/ monthly rate (i = interest rate, m = month)
( -> Add open parenthesis at beginning
) -> Add open and close parentheses
(⋯) -> Add close parenthesis

Define own Currency in Settings App (iOS Settings/ Watch Settings)
Select own currency as from currency, select a different currency as to currency, type in exchange rate, long press own currency. Now all exchange rates for the other currencies will be calculated and stored. On Watch just deep press on currency calculator.

Any questions or wishes -> Support // Email

🆕 What's New · v6.1.9

Magic Keyboard Bugfix

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Mein Rechner (inkl. Währungen)
Developer
Joachim von Caron
Bundle ID
de.caron.myCalculator
App Store URL
Open in App Store
Category
Finance
Content rating
4+
Languages
EN, DE

Company

Website
von.caron.de
Tagline
von.caron.de
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
$287/mo
Top-grossing rank
Outside top 100 in US Finance
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
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
Email
Not found
Phone
Not found
Contact page
https://von.caron.de/contact/
About page
Not found
📈Ratings growth8 ratings+14% lifetimeShow 3-year history estimate ▾May 2023Dec 2024May 2026
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.
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