Qalculator vs Formcalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Qalculator
This app provides specialized calculation tools for media professionals in film, TV, theatre, and events. It offers utilities for lighting, projection, cameras, audio, and more, simplifying complex industry tasks.
- Lighting beam calculations
- Projection tools
- Camera distance and focal length calculations
- Audio delay and phase offset calculations
- Display size and bandwidth calculations
- Tap BPM and DIP switch utilities
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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.
Formcalc
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Formcalc is a powerful formula calculator designed to simplify recurring calculations. Instead of entering the same formula again and again, you define it once and reuse it anytime. Create your own custom formulas using two flexible inputs (X and Y), rename fields, and adapt the calculator to your exact workflow — whether for daily calculations, productivity, planning, or personal projects. Key Features • Create and reuse custom formula with X and Y • Save results automatically in a clear history • Rename input fields and customize labels • Fully offline usage – no account required • Fast and minimal interface focused on efficiency Formcalc also includes two integrated timers that help you track time-based values and processes directly inside your calculation workflow. Designed for Repeated Calculations Formcalc is built for anyone who regularly performs the same calculations and wants a faster, more flexible alternative to standard calculator apps. Use it for: • Personal calculations • Productivity workflows • Study and learning • Work-related formulas • Everyday problem solving Widgets & Notifications (Premium) With an active subscription, you unlock: • Home Screen Widgets (iOS) • Notifications for timers • Advanced customization options Privacy & Simplicity • Works offline • No account required • Local history storage on your device Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Formcalc at Free against Qalculator's $2.99. Qalculator's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Formcalc is free to download; Qalculator costs $2.99 up front. Formcalc sells 2 in-app purchases, starting at $0.99 per month. Qalculator asks for nothing beyond the download.
| Parameter | Qalculator | Formcalc |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 90.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | QConcept GmbH & Co. KG | Admir Pekic |
In-app purchases
Qalculator
No in-app purchases
Formcalc
- Basic$0.991 Month
- Basic Year$12.991 Year









