# Kicker U — user reviews > 73 indexed App Store user reviews of Kicker U by Kicker, rated 2.30/5 from 49 ratings. - Source: https://appshunter.io/ios/app/kicker-u/id418548755/reviews - App overview in markdown: https://appshunter.io/ios/app/kicker-u/id418548755.md - Rating breakdown: 5★ 8 · 4★ 5 · 3★ 6 · 2★ 5 · 1★ 25 ## What do users think of Kicker U? Overall sentiment: negative **Pros** - 👍 Useful for box building - 👍 Handy for tuning amps - 👍 Good for Kicker product specs - 👍 Time saver for installers - 👍 Provides cut lists - 👍 Professional installer tool **Cons** - 🐛 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Inconsistent calculations - 🐛 Tone generator issues - 🐛 Paid app, not free alternatives - 🐛 Difficult to read text - 🐛 Outdated app **Commonly reported bugs** - App crashes on opening driver manages and box building - App crashes on iOS 18.6 - App consistently freezes - Sine sweep quit working - App shuts down when selecting box builder - App kicks user out when trying to manage drives - App force closes when trying to save a box - App force closes when entering specs - App keeps closing out when opened - App crashes when loading saved enclosures - Tone generator crashes the app - Saved box builds crash the app - Custom subwoofer specs not working - App doesn't show ports in box template - White text on light grey screen is unreadable - Colors make numbers unreadable - Airspace calculator hard to understand - Frequency generator issues - Saved boxes crash the app - Tone generator not working - App crashes when trying to use tone generator - App shuts down when trying to save an enclosure - App doesn't work with custom speakers - App doesn't calculate real boxes - App doesn't give order for measurements in custom box builder - App doesn't show cut list for ports - App doesn't allow customization of box dimensions - App doesn't show what to put in each box field - App doesn't have BL or MMS for Kicker products - App not compatible with iPhone OS - App doesn't work with iPhone 5 - App doesn't work with iPhone 6/6+ **Most requested features** - Add back button - Include newer sub models (L7T, L7S, Solo X) - Improve color contrast/readability - Add port and vent visualization in box builder - Generate more box templates - Allow adjustment of specs for recommendations - Add downfiring enclosure option - Add amp specs - Support for more than 2 woofers - Support for different material thicknesses (5/8, 1/2) - Allow customization of box dimensions - Add a mini forum for help ## Newest reviews (20 of 73) ### 3/5 — To Go Back On Pages You Need to Swipe *2025-05-07* It's shows in you in the app. Pretty self explanatory. ### 3/5 — It’s okay … *2024-10-27* My biggest problem with the app is that whenever you look at the box template it don’t show you the port or anything what would improve this app a lot would be to show that and also generate a few softener boxes and let you adjust the specs to see what works best for you & give you recommendations on what size tuning you need etc … other then that it’s 3 star worthy ### 3/5 — Needs improvement *2024-08-10* When will the new Solo x be added to this? Other than that app does what it needs to ### 4/5 — Needs update *2024-01-29* 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. ### 2/5 — Mise à jour *2023-12-20* Peut être le temps de mettre à jour !!! ### 1/5 — Waste of money *2022-02-21, version 3.1.11* Paid for the app and when I select box builder the app shuts down. What a waste of money! ### 1/5 — Navigation??? *2022-02-09* How is there no back button or return to main screen? You have to restart the app to choose another function? ### 1/5 — False advertisement *2022-01-19, version 3.1.11* Hard to read and Tweaks I want a refund the worst 4 dollars I’ve ever spent ### 3/5 — Add buttons *2021-12-30* You need a back button on all pages. I have to close the app and restart to explore multiple pages within the app ### 1/5 — White texts on light grey screen? Really? *2021-02-13* Can you just change the text to be more contrast? White text on light grey background? It’s impossible to read Whoever put that on is really stupid Unbelievable ### 1/5 — What happened? *2021-01-24, version 3.1.9* Cant see anything. My numbers won’t pop up cause the colors. They hanged the color scheme and now I can’t see anything ### 2/5 — I tried *2021-01-23* 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. ### 3/5 — Color scheme is horrible *2021-01-12* 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?? ### 4/5 — Gangsta *2020-11-23* 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. 🤘🏻 ### 2/5 — Was sort of working *2020-11-09* 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. ### 1/5 — Awful *2020-10-29, version 3.1.7* Please give me my money back ### 2/5 — Closing app *2020-10-24* Was good app until today just keeps closing out when I open it maybe a update or fix bugs ### 3/5 — L7T *2020-05-22* This sub that I just purchased isn’t even on the app for setting up! Wasted my money after I just bought the sub. Maybe needs updating?! ### 3/5 — Good but crashes *2020-05-01* Good app but crashes when I try to load saved enclosures.. ### 1/5 — Don’t work *2020-02-05, version 3.1.7* When will they be releasing an up date This thing just keeps crashing ## Most critical reviews (10 lowest-rated) ### 1/5 — Trash *2026-04-12* 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. ### 1/5 — App crashes *2025-08-05* App crashes on ios 18.6 while opening driver manages and box building ### 1/5 — Frustrating App *2025-01-02* 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! ### 1/5 — No updates in 3 years *2024-12-16* 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. ### 1/5 — Trash *2024-11-28* 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. ### 1/5 — I like kicker not the app *2024-06-09, version 3.1.11* Whe i try to go to manage drives the app kicks me out the worst 3 dollars spent ### 1/5 — Pretty bad *2024-05-19, version 3.1.11* No back button. Have to force close the app to go back a screen. Not worth the money. ### 1/5 — Garbage. Don’t waste your time and money *2023-07-28, version 3.1.11* Garbage. Don’t waste your time and money ### 1/5 — Disappointing *2023-02-25* 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. ### 1/5 — Sine sweep *2022-10-24, version 3.1.11* 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. ## Most praised reviews (10 highest-rated) ### 5/5 — Best App for the DIY Installer *2017-06-08, version 2.3.7* This is by far the best app for anyone who loves to build their own boxes and get specs on Kicker products. Perfection!! ### 5/5 — Great app *2013-09-03, version 2.3.7* tuned up my whole sound system to perfection ### 5/5 — Awesome App *2013-08-16, version 2.3.7* Helps out a lot with Subwoofer specs and box builds! ### 5/5 — Useful *2013-07-24, version 2.3.7* Very usual app ### 5/5 — Cool *2013-04-08* Hey love the app but after the last update, while trying to build custom box, it did not give order for measurements ### 5/5 — Update again *2013-04-07, version 2.3.4* Update to make the app work with iPhone 5. ### 5/5 — Good app *2013-02-05, version 2.2.3* It's perfect if you love kicker supplies ### 5/5 — Great product *2012-10-27, version 2.2.3* Great for box building. Takes out the guess work. I also like that you can put in specs from different manufacturers and get box dimensions. ### 5/5 — 5* s *2012-08-28, version 2.2.3* This app helped me with the wiring that I needed to do with my kicker cvrs. This app is so easy to understand and I can c me using it to make some money really worth the money. ### 5/5 — Perfect *2012-08-06* Couldn't ask for a better kick app.. Worth buying.. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*