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Builds for LoL

Get the newest, best and well tested builds for any champion you want.
LoL Catalyst is built and designed to help you find builds for champions you want to play without having to open a dozen tabs to look for builds on a growing number of build websites. And the best part is, you can do it all in just a few seconds.

LoL Catalyst uses a range of sources for better build diversity and compatibility. Don't want to think too much about your item build and just concentrate on playing the game? Not to worry, just follow the most popular build. Don't trust common builds? No problem, you can look at how the pros are playing the champion. Want ideas for your third or fourth items? That's easy, simply glance at the list of successful builds and pick an item from there. LoL Catalyst eliminates the need to alt tab every few minutes to check what your next item should be and keeps you focused on your game.

So what are you waiting for? Get LoL Catalyst today and start improving your play.

Features:
- Builds from a diverse range of sources
- Specific match up tips
- Guide digests from sites such as Mobafire and Lolking
- Common counters
- Ban helper
- Game encyclopedia (look up items, summoners, runes, etc. right in the app!)
- Summoner lookup

Want to help translate this app into another language? Email me at [email protected]!

Category : Entertainment

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Reviews (28)

Ami. M. A. Apr 17, 2022     

very good app. dev doing a good job with updates and stuff. however in somepatches some random stuff gets wrecked. like champa with two roles like yone and poppy. their wr vs champs for their secondry role is completely fked up rn. need some fixes after the recent ui changes and stuff

Arc. Dec 8, 2021     

In my opinion it's a super interactive app that lets you create your own build and runes although it could have a bit more of personalization, its great in informing us on how we are doing and comparing scores, it's just better than any other apps out there, only thing I would do is give it a GUI update

Fat. E. T. Apr 13, 2022     

Its single handedly the most useful league app I've ever seen. Keeping everything updated is very hard and I really appreciate the effort.

Mr. F. Apr 2, 2022     

Your stats page on match info won't scroll and hasn't for sometime. Only revealing 3 players stats at any given time. Please fix this.

Chr. B. May 9, 2022     

The app gives me a lot of good information and helps me with a lot of stuff like the runes, build, role etc

Tor. P. Mar 25, 2022     

Catalyst is just a great app. I really enjoy using it to create and make any builds I can think of.

mar. k. Mar 6, 2022     

Actually (fairly) up to date and lets you look stuff up as well as make builds and look at others'.

Elj. K. May 18, 2022     

I can no longer filter the items from most expensive or alphabetical. Did you remove this?

Jos. S. Feb 9, 2022     

I have been using this app for about 4 years ago and I still love it to this day! Very nice and clean interface with constant updates to keep on the edge of playing. IMO best league app for builds, hands down! You guys rock, keep it up ☺

Ama. K. V. Dec 31, 2020     

Best app for League Players. I used it 3 years ago and then switched to op gg. Now I'm back again. Very thorough, with a well-organized layout. Highly useful. It's even got an encyclopedia for items. Don't bother about including real time match up info. That's what all the other apps do, and they just make players get tilt before the match even begins.

Aka. Sep 28, 2021     

I never rate apps honestly, but I had to go out of my way for this one. Nearly everything about this app is, in my opinion, perfect. I get irrationally annoyed by poorly designed apps, and this app is one that simply leaves me with no complaints — almost anything you can think of, you can do on Catalyst; summoner lookup, custom builds, ability info, matchups, team comps, counter picks, you name it. The ads are minimal and non-intrusive, and the layout is simple and straightforward. Flawless.

Cam. S. Feb 13, 2022     

This is a follow-up review because I got a response from the original creator of this app. Apparently he manages it by himself, and he claims that everything comes directly from League. That may maybe the case, but there must have been an error when transferring the information. As I stated previously there are numerous inaccuracies in the app. Instead of asking what an accuracy is I found, he told me I was wrong, so 2 stars this time. Kench ult is listed as 0 sec cd, there are plenty of others

Joa. M. Feb 25, 2022     

It's great but there's plenty to improve. For example, whenever there's a new patch it should tell you to update the app. Other than that it works fine it just crashes now and then but nothing too serious.

Jim. K. Jun 27, 2019     

When i first started using this app, it was 5 stars, but the longer I've used it, the more it has declined. I was about to upgrade to the ad free version but it hasn't been updated with the new patch information and there are still values missing in some character ability descriptions. And with a new champion being released soon, I'll likely need to find a new reference for stats.

Jul. J. Jun 7, 2019     

I think the app its perfect... but it could be even better if you add the jungle stuff, I mean the monsters, like the Drakes, baron, herald, red, blue, etc... and maybe those plants that give you different advantages (the one that heal you, the one that explode ,etc...) and how those things works whit their respective description, like in the game, I think that could complete the information of the game a really 100% anyway, its awesome.

Kev. O. Jan 3, 2022     

It's really good and simple, but champions with 2 set of basic abilities like Gnar or Jayce only show it's base form abilities, not their alternative forms

Ram. A. M. Oct 28, 2018     

Simply amazing, the only app I could ever rely on to learn basic builds for my champions as I'm a new player. Layout is very easy to understand, ads aren't very disruptive and you can download the data offline in case your phone isn't connected. Not to mention the continuous support and updates. Just one thing, make an IOS version so my friends with iphones can use it or any IOS user in general.

Lux. Dec 30, 2018     

This app is very useful because it shows me things that aren't even available in game as well as the entire library of items in the game. Overall a great app but there is one thing that could be improved. There are some places in ability and item descriptions where instead of saying a number it says zero. fix this and this will get an easy 5 star.

CJ. J. Jul 7, 2021     

Excellent app, they added some good features but the filters are still off. Not sure why it doesn't give a complete list of Legendary items (Rabadon's and Archangels are both Legendary but they don't appear so when the Legendary filter is on). Also, mildly annoying that it doesn't pair Mythics with their Ornn version, instead it splits them and makes an awkward visual.

Kat. M. Jan 7, 2022     

I've been using this app for around 9 months and i really LOVE it everything is simple and easy to understand for everybody.

Lan. B. Apr 8, 2019     

Before the update, i would need to constantly download the offline data otherwise after a while it would stop working. I don't have access to wifi as much as i'd like but when I can use it, it's amazing. I'm on my school's e-sports team for League and it helps a lot with finding someone I can play.

Ed. H. Jul 13, 2021     

Really nice and very convenient. I am new to the LoL world and still needing to have visual reference for builds and items, this app has all of that and more. You have the ability to make your own builds and save them, look at different items, and even see stats for all of it. I also like how TFT is supported.

Jef. C. Jan 29, 2020     

I can tell a ton of work went into this. Worth a download if you're trying to learn the vast amount of information that is league. EDIT: I would like to see a little more detailed info on some things, such as champion abilities and passives. Fiora's passive has no numbers listed, Elise's abilities only cover her human ones, and some abilities have missing data in which "null" is instead provided (such as Camille's Q recast time). Still a fantastic app.

Vis. P. Aug 27, 2020     

I love everything about this app and learned a lot more of many champs more than I expected. I would highly recommend this for any league player. The only problem I have with this app though is that sometimes, the values for damage and other numerical values in champion ability information is shown as zero. Also champions with altering abilities like Jayce and Elise don't have their alternate abilities described.

Tim. H. Feb 6, 2021     

I've lived using this app and it shows a lot of great info. But I've seen it so many times not show info for champ abilities. Under the damage part it'll just say that it does 0 damage, meaning there's probably something wrong with the formula they put in. Champ info is one of the main reasons I use the app and when it can't show me that it becomes essentially useless to me. Example: currently reksai abilities do not show damage calculations, I have seen it on other champs too though.

Fle. Dec 13, 2020     

After fumbling around for a few minutes, I've noticed the pros of this app already. Simple UI, Great Info, Easy to access, and follow. It does its job well, I just hope that it constantly gets updated, and can keep up with the patches and stuff. Kudos to the dev(s) for a simple, and great app!

you. n. Jul 1, 2019     

every new patch, when i update the app, it bugs out, it either show wrong builds(like ap builds on ad champs for example) , or like the last update, where we are in patch 9.13, but in the app it shows 9.9 runes and builds, 4 patches behind(this bug happened more than a time), i wish they would fix that, and take more time when updating, so it doesnt show wrong patch builds/runes

Alb. Y. Aug 24, 2021     

Very convenient app especially for quick offline checks. I like the statistics shown like how often a champ uses a specific item. Though I'm having trouble scrolling in the advanced view vertically. If I could only fit the grid to my screen horizontally.