1. Home
  2. 🔍 Reference
  3. Kicker U
Kicker U

Kicker U

by Kicker

49 ratings
73 reviews
#22 in paid Reference
🌟 Lifestyle
🔍 Reference
$3.99

Details

  • Released
  • Updated
  • February 14, 2011
  • August 19, 2021

Features

Developer

Kicker
✨Promote your app ✨
Kicker U screenshot #1 for iPhone
Kicker U screenshot #2 for iPhone
Kicker U screenshot #3 for iPhone
Kicker U screenshot #4 for iPhone
Kicker U screenshot #5 for iPhone
iphone
ipad
📉no. 22
Charts↘︎
📌Ready
Reviews summary↘︎
⭐73
Reviews↘︎
📝7+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓4 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

Access a mobile-audio installation toolbox with this app. Design and build custom enclosures, assist with subwoofer wiring, and utilize various calculators for port conversion and tuning frequency. Save Thiele-Small parameters to create custom boxes for any driver.

✓Mobile audio installation knowledge
✓Custom enclosure design
✓Subwoofer wiring assistance
✓Port conversion calculator
✓Tuning frequency calculator
✓Thiele-Small parameter saving
Show original description

What users say

Summarized from real user reviews of Kicker U. Based on 49 reviews and a 2.3/5 average, it highlights the 6 positives and 9 negatives reviewers mention most about this Reference app.

Positive things

  • 👍Useful for box building
  • 👍Handy for tuning amps
  • 👍Good for Kicker product specs
  • 👍Time saver for installers
  • 👍Provides cut lists
  • 👍Professional installer tool

Negative things

  • 🐛Frequent crashes
  • 🐛No back button
  • 🐛Poor color contrast
  • 🐛Missing newer sub models
  • 🐛Inconsistent calculations
  • 🐛Tone generator issues
  • 🐛Paid app, not free alternatives
  • 🐛Difficult to read text
  • 🐛Outdated app
See all reviews

What's New in Kicker U

3.1.11

August 19, 2021

- Fixed bug when trying to add new driver. - Bug fixes & code cleanup.

Charts

Top Paid

📉 22-4

Reference

This app dropped -4 positions in Reference chart.

Last updated on August 24, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Trash

You would think for an app that you have to pay for you could at least have a back button. This app is trash. Who ever approved this ought to be fired.
Itsjoshie88Itsjoshie88

App crashes

App crashes on ios 18.6 while opening driver manages and box building
J.y.o.TJ.y.o.T

To Go Back On Pages You Need to Swipe

It's shows in you in the app. Pretty self explanatory.
DappersonsDappersons

Frustrating App

I was hoping for a useful program to examine different changes in speaker and enclosure variables. This application consistently freezes and provides frustration and no answers. Highly disappointing support for a company that clouts it over 50 years old. That is a lot of time to potentially figure things out, or not!
Show more
OU812NixknameOU812Nixkname

No updates in 3 years

I didn’t realize that there haven’t been any updates in 3 years. The app doesn’t have the L7T as an option so it does me no good. What a waste.
JasonlykinsJasonlykins
See 68 more reviews

Developer apps

Kicker U Lite
Kicker U Lite

by Kicker

🔍 Reference

(24)

Free
TweEQ
TweEQ

by Kicker

🌟 Lifestyle

(8)

Free
Connect by Kicker
Connect by Kicker

by Kicker

🎬 Entertainment

(23)

Free
FlexTune
FlexTune

by Kicker

🎵 Music

(10)

Free
See developer apps

User experience

🐞

Reported Bugs

32 issues

App crashes on opening driver manages and box building

Bug

App crashes on iOS 18.6

Bug

App consistently freezes

Bug

Sine sweep quit working

Bug

App shuts down when selecting box builder

Bug

App kicks user out when trying to manage drives

Bug

App force closes when trying to save a box

Bug

App force closes when entering specs

Bug

App keeps closing out when opened

Bug

App crashes when loading saved enclosures

Bug

Tone generator crashes the app

Bug

Saved box builds crash the app

Bug

Custom subwoofer specs not working

Bug

App doesn't show ports in box template

Bug

White text on light grey screen is unreadable

Bug

Colors make numbers unreadable

Bug

Airspace calculator hard to understand

Bug

Frequency generator issues

Bug

Saved boxes crash the app

Bug

Tone generator not working

Bug

App crashes when trying to use tone generator

Bug

App shuts down when trying to save an enclosure

Bug

App doesn't work with custom speakers

Bug

App doesn't calculate real boxes

Bug

App doesn't give order for measurements in custom box builder

Bug

App doesn't show cut list for ports

Bug

App doesn't allow customization of box dimensions

Bug

App doesn't show what to put in each box field

Bug

App doesn't have BL or MMS for Kicker products

Bug

App not compatible with iPhone OS

Bug

App doesn't work with iPhone 5

Bug

App doesn't work with iPhone 6/6+

Bug
✨

Requested Features

12 requests

Add back button

Feature

Include newer sub models (L7T, L7S, Solo X)

Feature

Improve color contrast/readability

Feature

Add port and vent visualization in box builder

Feature

Generate more box templates

Feature

Allow adjustment of specs for recommendations

Feature

Add downfiring enclosure option

Feature

Add amp specs

Feature

Support for more than 2 woofers

Feature

Support for different material thicknesses (5/8, 1/2)

Feature

Allow customization of box dimensions

Feature

Add a mini forum for help

Feature

FAQ

What does Kicker U do?

Kicker U provides a mobile toolbox for car audio installation knowledge. It helps users design and build custom subwoofer enclosures and assists with wiring subwoofers. The app includes various calculators and tools for precise audio system construction.

What are the key features of Kicker U?

Key features include calculators for converting ports between round and slot designs, calculating the tuning frequency of existing enclosures, and the ability to enter and save Thiele-Small parameters. This allows users to create custom boxes for any driver they own.

Is Kicker U free to use?

Yes, Kicker U is available for free. The application does not have any in-app purchases or advertisements, making all its features accessible without cost.

Who is Kicker U designed for?

This app is designed for car audio enthusiasts and DIYers who want to design and build their own custom subwoofer enclosures and understand mobile audio installation principles. It's a valuable resource for anyone working on their car's sound system.