53
BU Score
Solid
Qalculator
✍️ BU Analytics Review
“
Qalculator is an iOS app from QConcept GmbH & Co. KG in the Utilities category, currently rated 5.0★ across 5 ratings. Initial signal reads as no scraped reviews yet — judgment based on metadata only.
Our BU Score puts it at 53 — Solid (established niche player). For a Utilities app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 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 | |
| Excellent rating (5.0★)METRIC | +$2,200 | |
| Mature app (13y old)METRIC | +$1,500 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (5 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 12.0+🔖 v2.3.3🔄 updated 3y ago🌐 EN📂 Utilities💰 Paid🚀 Launched 2013 (13y old)
📝 About this app
Qalculator is a convenient tool for media professionals. Qalculator offers a variety of different calculation tools and utilities all of which are made for tasks often performed within the Film-/TV-, Theatre- and Event Industry. This includes:
- Lighting Beam Calculation
- Projection Tools
- Camera Tools
- Audio Tools
- Tap BPM
- Display Size
- DIP Switches
- Bandwidth Calculation
- Frames To Time
This app is designed for professionals such as Sound Engineers, Audio Technicians, Lighting Designers, Lighting Technicians, Lighting Operators, Video Engineers, Video Technicians, Camera Men, Camera Technicians and many more.
How big will the projected image be if I use a lens factor of 1,5:1 and have my projector at 32' 5" distance from the screen?
Qalculator will help!
Want to know which focal length you need to get a close up shot? Qalculator assists you.
Ever wanted to know how wide a 103" Screen is? Qalculator delivers the solution at your fingertip.
Feedback and feature requests are very welcome!
Qalculator does:
- Lighting beam diameter calculation
- Lighting beam object distance calculation
- Video projector image size calculation
- Video projection lens factor for given image size and projection distance
- Video projection distance for given image size and lens factor
- Video projection approximate brightness calculation (lux/fc)
- Camera distance for given focal length and field of view
- Camera focal length for given distance and field of view
- Camera field of view for given object distance and focal length
- Camera chip size selector for a variety of different chip sizes
- Audio delay time for given distance with respect to temperature
- Audio wavelengths and travel times for given frequency with respect to temperature
- Audio find phase offset and delay for instance for bass speaker arrays
- Display Size calculates the complete dimensions for diagonal screen sizes
- Tap BPM tap to calculate the average beats per minute
- DIP Switches for DMX addressing of DIP switch based devices
- DIP Switch offset to step through the DMX address fixture per fixture
- Transfer time calculation for a given file size and bandwidth
… and more.
- Lighting Beam Calculation
- Projection Tools
- Camera Tools
- Audio Tools
- Tap BPM
- Display Size
- DIP Switches
- Bandwidth Calculation
- Frames To Time
This app is designed for professionals such as Sound Engineers, Audio Technicians, Lighting Designers, Lighting Technicians, Lighting Operators, Video Engineers, Video Technicians, Camera Men, Camera Technicians and many more.
How big will the projected image be if I use a lens factor of 1,5:1 and have my projector at 32' 5" distance from the screen?
Qalculator will help!
Want to know which focal length you need to get a close up shot? Qalculator assists you.
Ever wanted to know how wide a 103" Screen is? Qalculator delivers the solution at your fingertip.
Feedback and feature requests are very welcome!
Qalculator does:
- Lighting beam diameter calculation
- Lighting beam object distance calculation
- Video projector image size calculation
- Video projection lens factor for given image size and projection distance
- Video projection distance for given image size and lens factor
- Video projection approximate brightness calculation (lux/fc)
- Camera distance for given focal length and field of view
- Camera focal length for given distance and field of view
- Camera field of view for given object distance and focal length
- Camera chip size selector for a variety of different chip sizes
- Audio delay time for given distance with respect to temperature
- Audio wavelengths and travel times for given frequency with respect to temperature
- Audio find phase offset and delay for instance for bass speaker arrays
- Display Size calculates the complete dimensions for diagonal screen sizes
- Tap BPM tap to calculate the average beats per minute
- DIP Switches for DMX addressing of DIP switch based devices
- DIP Switch offset to step through the DMX address fixture per fixture
- Transfer time calculation for a given file size and bandwidth
… and more.
🆕 What's New · v2.3.3
minimal improvements for different screen sizes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Qalculator
- Developer
- QConcept GmbH & Co. KG
- Bundle ID
- net.qconcept.Qalculator
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN
Company
- Website
- www.qalculator.net
- Tagline
- Not found
- 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
- $86/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
- http://www.qalculator.net/de/impressum
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- qalculator@qconcept.net
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth5 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.
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