Rating: 4.6/5 (56 votes)

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Catalyst for Android


Key features of Catalyst

  • Builds for LoL, TFT Helper, Get updated builds for League of Legends and Teamfight Tactics
  • Updated on Jan 10, 2021
  • Catalyst APK is available for free download

App description by iDunnoLolz

Catalyst is a utility app for League of Legends and Teamfight Tactics.


Quickly get the best builds for any champion. Builds come from a variety of sources so you can always find a build you like. A default build is shown for each champion for your convenience.


Pick your desired traits or a few champions you want to use and see all of the options you have. Let Catalyst take care of the calculations so you can focus on playing the game your way. A complete cheat sheet is offered for your convenience.


- Multiple builds per champion from a diverse range of sources

- Specific match up tips

- Guide digests from sites such as Mobafire

- Champion counters

- Recommended bans based on your elo

- Game encyclopedia (look up items, summoners, runes, etc. right in the app!)

- Summoner lookup

- News and patch notes about the game

- ARAM builds

- LoL Esports (view schedules, team standings, and watch games)

- Build stats and analysis

- Team composition analyzer (analyze weaknesses in enemy team compositions)


- Static information (includes information about champions, items and traits)

- Cheat sheets

- Team builder

- Auto-generated team suggestions

- And more to come!

Want to help translate this app into another language? Email me at!

Catalyst is recently updated builds helper application by iDunnoLolz, that can be used for various team purposes. Its latest version 1.35.0 has 3325111 downloads. You can download Catalyst latest APK for Android right now.


License Free
Requirements Require Android 4.1 and up
Language English
Categories entertainment, builds, helper, team, games, summoners
Size 34M
Version 1.35.0
Audience Teen
Publish Date
Author iDunnoLolz
Downloads 3325111
Download options APK
User Rating 4.61 / 5


  • I was a beginner to League a while back, and when I was this was the first League app I downloaded. Unsurprisingly, it was the only app I needed. It provides all champion build guides with multiples roles present, an encyclopedia of all the items, summoner lookup, and even play and ban rates of all the champions, along with recommended bans by division. On top of that, as soon as a new League patch comes out, the app is updated within a day or two. Amazing app that I highly recommend.

  • Works really good to find what you want and who you might want to buy. Some stats don't tell you enough though it would just say deals massive damage over time for example (Darius passive stats for his bleed effect..) You can't compare it to talons or fizz bleed effect to see who deals more damage over time. But besides simple things like that really good app.

  • I use the app all the time while playing among a few others. The only things the app is missing (in my opinion) is analysis (like on and runes stats in match history (like in lol profile) Would also be great to have a "tips" section on champion pages for direction on playstyle.

  • Thanks for the app my GF's havin fun reading and using your app she said its the best hahahah and i got kiss from her cause of this app soooo thank you very much hahahahah

  • I really like this app. But it would've been alot better if you add garena in the summoner lookup as there of garena users using this app. Thanks in advance.

  • Quite up to date. The developers reply to your ratings as well and thats good. Please add a sorting mode for champions as per their ip and rp cost.

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