---
title: "Kicker U - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Subwoofer school’s in session! You’ve now enrolled into KICKER U, where you have instant access to a toolbox of mobile-audio installation knowledge. Let KICKER U help you design and build custom enclo"
---

# Kicker U — United States

![Kicker U App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple115/v4/a0/91/37/a09137f3-0b47-2c79-4750-5a27cd2511d9/AppIcon-0-1x_U007emarketing-0-7-0-0-85-220.png/434x0w.png)

**Developer:** [Stillwater Designs & Audio](https://apptail.io/developer/stillwater-designs-audio-nmpd)
**Category:** Reference
**Rating:** 2.3/5 (49 ratings)
**Price:** Free
**Bundle ID:** com.kicker.kickerU
**Store:** Apple App Store
**Country:** United States
**Version:** 3.1.11 (released 2021-08-19)
**Original Release:** 2011-02-14
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id418548755)
**AppTail Page:** [https://apptail.io/app/kicker-u-Ybae/united-states](https://apptail.io/app/kicker-u-Ybae/united-states)

## Kicker U Description
Subwoofer school’s in session! You’ve now enrolled into KICKER U, where you have instant access to a toolbox of mobile-audio installation knowledge. Let KICKER U help you design and build custom enclosures and assist with wiring subwoofers. 

This version contains calculators for converting your port from round to slot or vice versa, calculate the tuning frequency of your existing enclosure as well as the ability to enter and save Thiele-Small parameters to create boxes for any driver you own along with many other features.

## Kicker U Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/e8/96/67/e89667b5-50c8-010f-034f-b3fedad743ad/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/43/5f/11/435f1116-c43c-73d2-4eee-2d3bd0273405/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/38/58/7c/38587ca6-483f-9408-18f8-890c6e7f6b48/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/fe/2f/db/fe2fdb07-3f1c-2f12-6435-18e41edc8f4a/pr_source.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/ac/2a/96/ac2a9658-cf7f-a14f-5969-927ff4ee3a76/pr_source.png/1242x2688.png)

## Kicker U Rating Breakdown in United States
- 5 stars: 8 (16%)
- 4 stars: 5 (10%)
- 3 stars: 6 (12%)
- 2 stars: 5 (10%)
- 1 stars: 25 (51%)

## Kicker U Reviews in United States

### ***-- "To Go Back On Pages You Need to Swipe"
It's shows in you in the app. Pretty self explanatory.
-- Dappersons, 2025-05-07

### *---- "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!
-- OU812Nixkname, 2025-01-02

### *---- "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.
-- Jasonlykins, 2024-12-16

### *---- "Trash"
This app is horrible. Whatever section you pick there is no back button, you need to force close the app and reopen it to pick another section. The tone generator section lists start tone, end tone and seconds so you can build your own sweep tests but you cannot change any setting except the first start tone. I can’t believe I paid $3.99 for this garbage. I bought two 12” solo baric 750w L7s and a custom mega cab ground shaker box and wanted to play with some of the options in this app but kicker obviously hasn’t tested this app out on a new iPhone 16 pro max.
-- gawkgawk, 2024-11-28

### ***-- "Needs improvement"
When will the new Solo x be added to this? Other than that app does what it needs to
-- Iam_Me17, 2024-08-10

### *---- "I like kicker not the app"
Whe i try to go to manage drives the app kicks me out the worst 3 dollars spent
-- Erik Zuniga, 2024-06-09

### *---- "Pretty bad"
No back button. Have to force close the app to go back a screen. Not worth the money.
-- The D4782040, 2024-05-19

### ****- "Needs update"
Yall ever plan on adding some of the newer subs? Like the L7T and L7S series? Also, I’d really like to see the box builder include options for designing a downfiring enclosure. I realize that this app hasn’t been updated for 2 years at the time of this review, but hopefully yall continue to maintain it.
-- dboy.stein, 2024-01-29

### *---- "Garbage. Don’t waste your time and money"
Garbage. Don’t waste your time and money
-- Mike W77, 2023-07-28

### *---- "Disappointing"
I’ve been buying kicker since the 1st round solo baric came out and I’ve competed with them. In the past 5 years I’ve purchased 5 kicker subs and 2 amps. So far I’ve been pretty disappointed in all of these purchases. So I decided to try one more time. (I’m pretty brand loyal like that). I ordered a 12” L7R from crutchfield. Awaiting its arrival. And I downloaded this app to design the box for it. The disappointment continues. This app was a complete waste. I agree with the previous reviews regarding the ports and vents. Where are they? And the colors are also a pretty bad choice. Please get it together kicker. There’s a lot of new stuff out there in the car audio market and Stillwater designs seem to be falling behind.
-- Jasonr570, 2023-02-25

### *---- "Sine sweep"
I mainly used this app for the tone generator and the sign sweep quit working a couple years ago, so the app is now useless to me.
-- BassMan 1439, 2022-10-24

### *---- "Waste of money"
Paid for the app and when I select box builder the app shuts down. What a waste of money!
-- mykulp57, 2022-02-21

### *---- "Navigation???"
How is there no back button or return to main screen? You have to restart the app to choose another function?
-- Uncle Spooky, 2022-02-09

### *---- "False advertisement"
Hard to read and Tweaks I want a refund the worst 4 dollars I’ve ever spent
-- refund_me_back, 2022-01-19

### ***-- "Add buttons"
You need a back button on all pages.  I have to close the app and restart to explore multiple pages within the app
-- Lackeyd25, 2021-12-30

### *---- "What happened?"
Cant see anything. My numbers won’t pop up cause the colors. They  hanged the color scheme and now I can’t see anything
-- William borders, 2021-01-24

### **--- "I tried"
I wanted and tried to like this app. I planned to use it to build boxes for my kicker speakers, but ultimately it’s just not that good. It functioned like each page is a new app which makes one project feel like multiples that have no relation to each other. It would really be nice if the 3D renderings displayed the ports when the ported option is selected. The airspace calculator is very hard to understand, and it just seems faster and easier to just work it all out by hand.  If you do this kind of stuff as anything more than a hobby then more of this app might make more sense to you, but you’ve probably already got better programs to use. Keep giving Kicker your money for their speakers, amps and electronic equipment, because they really do make some good stuff. Stop giving Kicker your money for this app. There are better cheaper (free) box building apps and sites out there to use.
-- The BobDizzle, 2021-01-23

### ***-- "Color scheme is horrible"
Love the app, has a lot of good info of you deal with a lot of kicker stuff (or things with similar specs) but the colors of text and backgrounds are terrible. Very difficult to read and no way to change them. Come on, yellow background with white text??
-- 05psd, 2021-01-12

### ****- "Gangsta"
This app works great if you know what you’re doing. I also get to show my customers a 3D image rough draft of what their box will look like. 🤘🏻
-- marcosandrew, 2020-11-23

### **--- "Was sort of working"
So when I first purchased this app it mostly worked, mostly. Always force closes when trying to save a box before. New update can’t enter specs in fields, app force closes all the time. Just a waste of money at this point until they fix the app.
-- Luke100680, 2020-11-09

[View all Kicker U reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Kicker U Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | United States | Reference | #28 |
| Top Paid | Dominican Republic | Reference | #63 |
| Top Paid | Mexico | Reference | #72 |
| Top Paid | Ecuador | Reference | #80 |
| Top Paid | South Africa | Reference | #99 |
| Top Paid | Norway | Reference | #109 |
| Top Paid | Philippines | Reference | #129 |
| Top Paid | Sweden | Reference | #134 |
| Top Paid | Australia | Reference | #141 |
| Top Paid | Finland | Reference | #143 |
| Top Paid | Thailand | Reference | #156 |
| Top Paid | Indonesia | Reference | #157 |
| Top Paid | Colombia | Reference | #157 |
| Top Paid | New Zealand | Reference | #160 |
| Top Paid | Canada | Reference | #166 |
| Top Paid | Netherlands | Reference | #169 |
| Top Paid | Romania | Reference | #175 |
| Top Paid | India | Reference | #201 |
| Top Paid | Chile | Reference | #204 |
| Top Paid | Malaysia | Reference | #204 |
| Top Paid | Greece | Reference | #205 |
| Top Paid | Russia | Reference | #209 |
| Top Paid | Brazil | Reference | #219 |
| Top Paid | Türkiye | Reference | #229 |
| Top Paid | Austria | Reference | #243 |
| Top Paid | Israel | Reference | #250 |
| Top Paid | Japan | Reference | #259 |
| Top Paid | Italy | Reference | #267 |
| Top Paid | United Arab Emirates | Reference | #285 |
| Top Paid | Saudi Arabia | Reference | #302 |
| Top Paid | Argentina | Reference | #304 |
| Top Paid | Vietnam | Reference | #306 |
| Top Paid | Denmark | Reference | #332 |
| Top Paid | United Kingdom | Reference | #346 |
| Top Paid | Belgium | Reference | #368 |
| Top Paid | Germany | Reference | #369 |
| Top Paid | Poland | Reference | #386 |
| Top Paid | Portugal | Reference | #389 |
| Top Paid | Spain | Reference | #393 |
| Top Paid | Kazakhstan | Reference | #403 |
| Top Paid | France | Reference | #404 |
| Top Paid | Singapore | Reference | #420 |
| Top Paid | Ukraine | Reference | #433 |
| Top Paid | Peru | Reference | #437 |
| Top Paid | South Korea | Reference | #477 |
| Top Paid | Taiwan | Reference | #486 |

## Kicker U Discovered Keywords
- kicker u

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## Kicker U Available In
- [United States](https://apptail.io/app/kicker-u-Ybae/united-states)
- [Canada](https://apptail.io/app/kicker-u-Ybae/canada)
- [Australia](https://apptail.io/app/kicker-u-Ybae/australia)
- [Mexico](https://apptail.io/app/kicker-u-Ybae/mexico)
- [India](https://apptail.io/app/kicker-u-Ybae/india)
- [Sweden](https://apptail.io/app/kicker-u-Ybae/sweden)
- [Malaysia](https://apptail.io/app/kicker-u-Ybae/malaysia)
- [Thailand](https://apptail.io/app/kicker-u-Ybae/thailand)
- [Ukraine](https://apptail.io/app/kicker-u-Ybae/ukraine)
- [China](https://apptail.io/app/kicker-u-Ybae/china)
- [South Africa](https://apptail.io/app/kicker-u-Ybae/south-africa)
- [Germany](https://apptail.io/app/kicker-u-Ybae/germany)
- [New Zealand](https://apptail.io/app/kicker-u-Ybae/new-zealand)
- [Romania](https://apptail.io/app/kicker-u-Ybae/romania)
- [Russia](https://apptail.io/app/kicker-u-Ybae/russia)
- [Indonesia](https://apptail.io/app/kicker-u-Ybae/indonesia)
- [Ireland](https://apptail.io/app/kicker-u-Ybae/ireland)
- [Israel](https://apptail.io/app/kicker-u-Ybae/israel)
- [United Arab Emirates](https://apptail.io/app/kicker-u-Ybae/united-arab-emirates)
- [South Korea](https://apptail.io/app/kicker-u-Ybae/south-korea)
- [Kazakhstan](https://apptail.io/app/kicker-u-Ybae/kazakhstan)
- [Sri Lanka](https://apptail.io/app/kicker-u-Ybae/sri-lanka)
- [Luxembourg](https://apptail.io/app/kicker-u-Ybae/luxembourg)
- [Namibia](https://apptail.io/app/kicker-u-Ybae/namibia)
- [Netherlands](https://apptail.io/app/kicker-u-Ybae/netherlands)
- [Norway](https://apptail.io/app/kicker-u-Ybae/norway)
- [Philippines](https://apptail.io/app/kicker-u-Ybae/philippines)
- [Saudi Arabia](https://apptail.io/app/kicker-u-Ybae/saudi-arabia)
- [Singapore](https://apptail.io/app/kicker-u-Ybae/singapore)
- [Slovenia](https://apptail.io/app/kicker-u-Ybae/slovenia)
- [Vietnam](https://apptail.io/app/kicker-u-Ybae/vietnam)
- [Japan](https://apptail.io/app/kicker-u-Ybae/japan)
- [Armenia](https://apptail.io/app/kicker-u-Ybae/armenia)
- [Argentina](https://apptail.io/app/kicker-u-Ybae/argentina)
- [Belgium](https://apptail.io/app/kicker-u-Ybae/belgium)
- [Bulgaria](https://apptail.io/app/kicker-u-Ybae/bulgaria)
- [Brunei](https://apptail.io/app/kicker-u-Ybae/brunei)
- [Switzerland](https://apptail.io/app/kicker-u-Ybae/switzerland)
- [Chile](https://apptail.io/app/kicker-u-Ybae/chile)
- [Cyprus](https://apptail.io/app/kicker-u-Ybae/cyprus)
- [Denmark](https://apptail.io/app/kicker-u-Ybae/denmark)
- [Dominican Republic](https://apptail.io/app/kicker-u-Ybae/dominican-republic)
- [Ecuador](https://apptail.io/app/kicker-u-Ybae/ecuador)
- [Spain](https://apptail.io/app/kicker-u-Ybae/spain)
- [Finland](https://apptail.io/app/kicker-u-Ybae/finland)
- [Hungary](https://apptail.io/app/kicker-u-Ybae/hungary)

---

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