PAcalculate vs D.C.A
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PAcalculate
This app provides 28 calculators and reference information for professional audio sound reinforcement and lighting. It covers acoustics, audio electronics, cabling, and lighting calculations, making it a valuable tool for audio and lighting professionals.
- 28 calculators for pro-audio and lighting
- Acoustics calculations (SPL, air absorption)
- Audio electronics calculations (dBu/dBV, Q/B/W)
- Cabling calculations (speaker cable loss)
- Lighting calculations (DMX, RGB/CMY)
- Reference info (pinouts, graphs)
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28 calculators (47 calculations) for pro-audio sound reinforcement and lighting, as well as reference info and utilities. A super handy tool for people dealing with PA, sound reinforcement, sound systems, electro-acoustics, pro-audio and lighting Acoustics - SPL (sound pressure level) - SPL sum with phase, distance or time difference - Air absorption attenuation for a given humidity, temperature, frequency and distance - Ceiling speaker coverage - Time «» Distance - Audio frequency «» Wavelength (includes lambda/2 and 2*lambda/3 for line arrays or subwoofer arrays) - Transition distance for line arrays (near to far field) - End-fire and broadside array subwoofer modelling Audio electronics - dBu «» dBV «» Volts - Q «» B/W (bandwidth) - Limiter threshold, attack&releases times - Amplifier gain Cabling - Speaker cable: low impedance, high impedance (constant voltage line, 70V/100V). Calculates energy and level loss, system damping factor Lights DMX channel, RGB/RGBW/RGBA and CMY Useful reference info such as pinouts (proaudio and lighting) and graphs Utilities: Inclinometer, Flashlight / light with selectable intermittence (uses camera permission) Latest news from DoctorProAudio.com
D.C.A
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Resulting of an architecture teammate and a software engineering company, DCA is a communication platform which decreases distances between architects, engineers, house-builders professionals and clients. The app provides all the technical and legal documentation, images, technical specifications and augmented reality. It includes a communication channel and a set of actions history made by the users. It might be accessed from an usual laptop or from any mobile device.
Screenshots
Verdict
The clearest difference is update cadence: D.C.A at every 3 weeks against PAcalculate's every 4 months. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PAcalculate ships an update every 4 months, D.C.A every 3 weeks. The most recent releases landed on October 1, 2026 and September 14, 2026 respectively.
| Parameter | PAcalculate | D.C.A |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Jose Brusi | Vamtech |
In-app purchases
PAcalculate
No in-app purchases
D.C.A
No in-app purchases
Questions
Is PAcalculate free?
Is D.C.A free?
Do PAcalculate or D.C.A have ads?
Which is updated more often, PAcalculate or D.C.A?
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