Ultimate Car Audio App

In-app purchases
4.5
164 reviews
10K+
Downloads
Content rating
Everyone
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About this app

Design, calculate, and build better car audio systems. Access powerful tools, find shops, and explore brands — all in one app. Free to use.

UCAA (Ultimate Car Audio App) is a complete car audio toolkit for enthusiasts, installers, and professionals.

Whether you're designing a subwoofer box, wiring speakers, or searching for a local shop, UCAA provides the tools and data you need.

🔧 CALCULATORS & TOOLS
- Box Calculator — Design sealed, ported, bandpass, and slot-ported enclosures
- Speaker Wiring — Calculate impedance for any wiring configuration
- Cone Area — Compare subwoofer setups (e.g., dual 10s vs single 15)
- Electrical Calculators — Power, wattage, voltage, and wire sizing
- dB Calculator — Estimate sound pressure levels
- Ohm’s Law Calculator — Voltage, current, and resistance
- Tone Generator — Test tones for tuning and diagnostics

📊 DATABASES
- Subwoofer Database — Thiele-Small parameters and box recommendations
- Amp Dyno Results — Real-world amplifier power vs rated specs

📍 DIRECTORY
- Find Car Audio Shops — Browse installers by location, specialties, and contact info
- Browse Brands — Explore car audio manufacturers and product lines

📚 LEARN
- FAQs — Crossovers, HPF/LPF, subsonic filters, and system design basics
- Tutorials — Step-by-step guides for installs and tuning
- Industry News — Updates from the car audio community

🚀 UCAA PRO
Upgrade to UCAA Pro for an ad-free experience across the entire app.

🏪 FOR SHOPS & BRANDS

Own a shop or represent a brand? Create your profile on UCAA to reach local customers. Shop Pro members get enhanced visibility and a full gallery.

Built for the car audio community. Free to use and regularly updated.
Updated on
Mar 29, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.5
156 reviews
W H
February 19, 2021
Great App! I use it all the time. Helpful when calculating simple things like ohm loads, built in frequency generator including sweeps, and wiring diagrams. Definitely worth the small price that is being asked. I highly recommend for anyone into audio. Once you see and start utilizing the features it will be your go to for alot of stuff.
18 people found this review helpful
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Xplicit Tech Solutions
February 19, 2021
Thank you very much for your 5-star review! If you have any suggestions for improvement or things to add, email them to thomas@xplicitcoding.com!
Anubhav Gupta
March 28, 2026
Love this app. It is very useful in calculating enclosure volume and is pretty accurate too. Thank you !
17 people found this review helpful
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Xplicit Tech Solutions
March 28, 2026
Hey Anubhav! The ability to save a name is already a feature in the app!
Skylar Carlson
February 19, 2021
The only thing this APP can't and won't do? Make me a sandwich. Otherwise this is everything you could ever need for car audio! No more going to facebook to ask the EXPERTS. You are the expert now. Need to tune a box? Got it. Need to tune your amp? Got it Need to add a battery but unsure the size? Got it Wire in 62 new speakers? Got it! Need s new alternator? Shoot you can run more car audio now! Got it, because this app is designed to help you with every question you could have.
9 people found this review helpful
Did you find this helpful?
Xplicit Tech Solutions
February 19, 2021
Thank you very much for your 5-star review! If you have any suggestions for improvement or things to add, email them to thomas@xplicitcoding.com!

What’s new

Request Legacy Pro from inside app
Panel visibility — tap the eye icon on any 3D box preview to show or hide individual walls and see inside your enclosure
Port length warning — slot port calculator now warns you when your port is too long to fit inside the box
Fixed slot port 3D explode view — all port walls now fly apart and reassemble correctly
Improved Pro purchase reliability
Bug fixes and UI improvements