Comparison

LoL Codex vs Underground Story

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

LoL Codex

This unofficial fan app provides comprehensive information on all League of Legends champions, including their lore, abilities, and updated news. It also offers quick access to game statistics and updates, making it a valuable resource for players.

Highlights
  • League of Legends champion encyclopedia
  • Champion lore and abilities
  • Fast updates for new champions
  • Game news and developer blog links
  • Quick match history search
  • Champion skill videos
Features
Read full description

ā–  Champion Codex Browse every champion by role and search by name or by the English champion ID. For every champion you get: • Passive and Q/W/E/R abilities • Cooldowns, costs, and per-rank values • Lore and base stats • Tips for playing as them and against them • The full skin list with full-screen viewing • A board just for that champion Favorite champions stay at the top of the list. ā–  Item Codex Search items by name or nickname, and filter by tag: Health, Attack Damage, Ability Power, Ability Haste, Movement Speed, and more. Total cost, combine cost, sell value, and stats come with a build graph. Tap through components and upgrades to follow a build path. ā–  Rune Codex All five paths at a glance: Precision, Domination, Sorcery, Resolve, and Inspiration. Read the keystone and rows 1 to 3 in order, and expand any rune for a description with the real numbers. ā–  Summoners' Plaza Every champion has a board of its own. Ahri talk belongs on the Ahri board, patch opinions on the Patch Debate board. Pick a match and a board opens for that match too. Read every board together in one feed, or filter down to one. A post can carry a title, body text, one photo, and a poll. Comments, replies, and mentions keep the conversation going. ā–  Match History Look up a summoner by Riot ID (name + #tag). The tag picks the right region for you (NA1, JP1, EUW1, and the rest), and your own summoner plus recent searches are saved for one-tap access. The app does not calculate or analyze match history itself. It opens OP.GG in a browser inside the app. ā–  News and Match Schedule Riot's official notices, patch notes, dev blogs, updates, store news, and esports news in one list, with comments on every article. Choose which regional Riot site the news comes from: KR, US, JP, TW, VN, or BR. The schedule covers LCK, LPL, LEC, LCS, CBLOL, LCP, LJL, and VCS, plus MSI, Worlds, and First Stand, with filters for the leagues you follow. Teams, times, and results by date, from last week to a month ahead. ā–  Seven Languages Korean, English, Japanese, Simplified Chinese, Traditional Chinese, Vietnamese, and Brazilian Portuguese. Switch any time in Settings, and champion info and news follow along. ā–  Notifications and Safety Turn notifications on or off by type: comments, replies, mentions, upvotes, and poll closings. You can also keep them quiet overnight. Every post and comment can be reported or blocked. Profanity and links are filtered automatically, and posts that collect reports can be hidden automatically. You can delete your account at any time. Deleting it removes the posts, comments, and photos you wrote along with it. Champion, item, and rune information is built on data published by Riot Games, and updates with new champions and patches. Light and dark appearance are both supported, following your device setting. This is a fan app built by an independent developer. It is not affiliated with Riot Games. For ages 14 and up. Contact: 7577ksj@gmail.com LoL Codex isn't created by Riot Games. League of Legends and all associated properties are trademarks or registered trademarks of Riot Games, Inc.

About

Underground Story

Embark on a story-driven idle adventure in a pixelated world where money dictates survival. Fight for freedom, uncover secrets, and manage fatigue in a labor camp. Explore hidden locations and interact with characters to escape.

Highlights
  • Story-driven idle gameplay
  • Pixel art style with animations
  • Manage physical and mental fatigue
  • Discover hidden clues and items
  • Interact with colorful characters
  • Mini-games and legendary items
Features
Read full description

Welcome! Your adventure into the mysterious world of the Underground Slavery begins. Here, money decides everything. You're about to discover the true power of money and how it drives the world, and the myriad secrets it holds, you'll embark on a journey to survive. But be warned, this adventure isn't just about survival. To escape the dark labyrinth of the Underground Slavery, you'll have to fight a fierce battle to pay off your debts and earn your freedom. We want you to succeed. Beyond survival, run for freedom. The world of the game is more than just an idle game. It's a story-driven adventure that tells the story of a group of people trapped in an underground slave labor camp. Discover hidden clues, items, and equipment, and interact with colorful characters to uncover new stories. The art style is a unique pixelated game, filled with delightful animations and colorful characters. We invite you to join us on a journey to explore hidden locations, challenge yourself in various mini-games, and find legendary items. Your life in the labor camp begins with a single finger movement. Escape the mines with simple controls and keep your life in the labor camp. You will learn to control your physical and mental fatigue through mental training and mace training. Your personal information is securely protected. Your game data is stored in the cloud, and you can access it at any time. But beware of unauthorized departures. Now your adventure begins. Create your story in the deep darkness of the underground slave labor camp. Official introduction site Guris introduction page: https://guris-game.webflow.io About the Underground Station page: https://underground-station.webflow.io/ Naver Cafe https://cafe.naver.com/gurisgame Discord https://discord.gg/77ufQBY8 Privacy Policy https://passman.tistory.com/entry/PrivacyPolicy

Screenshots

LoL Codex4 screens
Underground Story4 screens

Verdict

The call

The clearest difference is in-app purchases: LoL Codex at none against Underground Story's 25. LoL Codex also leads on ads (none vs shown). Underground Story's advantage is review sentiment (100% vs 78%) and device support (3 vs 1). On price and update cadence there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Underground Story sells 25 one-off in-app purchases. LoL Codex asks for nothing beyond the download.

UpkeepUpdate frequency

LoL Codex ships an update weekly, Underground Story every 5 days. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

Scorecard6 real differences Ā· 2 level
LoL Codex versus Underground Story: the parameters behind the verdict, then further details
ParameterLoL CodexUnderground Story
PriceFreeFree
Positive reviews77.8% of reviews100.0% of reviews — better
Update frequencyWeeklyEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.013.0 — better
Further details — not scored
Size16 MB146 MB
Age rating17+4+
DeveloperSeongJun Kimlee sanghyun

Customer experience

LoL Codex

Written reviews18 reviews
Positive77.8%
Neutral11.1%
Negative11.1%

Underground Story

Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

LoL Codex

No in-app purchases

25 purchases

Underground Story

One-time25
  • blood diamond x100$0.99
  • army cap$1.99
  • special force cap$3.99
Show 22 more
  • Auto Work Package$3.99
  • reopen ads remove$4.99
  • heart+2 (Sewers)$4.99
  • heart +3 (in Sewers)$4.99
  • heart +5 (in Sewers)$4.99
  • helm$5.99
  • minigame life+2$5.99
  • block start4$5.99
  • Block Destroy Bonus$5.99
  • Super Power$6.99
  • Termite Fry$9.99
  • tear diamond x100$9.99
  • Speed up package$9.99
  • green present box(x10)$9.99
  • blood diamond x2000$14.99
  • Red Ant Juice$15.99
  • Partnership Pledge$19.99
  • Perfect Free Pass$19.99
  • vending machine hacking$19.99
  • Santa present x20$19.99
  • Magazine Bribes$29.99
  • blood diamond x10000$49.99

Questions

Is LoL Codex free?
LoL Codex is free to download, with no in-app purchases.
Is Underground Story free?
Underground Story is free to download, with in-app purchases available.
Do LoL Codex or Underground Story have ads?
Underground Story shows ads; LoL Codex does not.
Which is updated more often, LoL Codex or Underground Story?
LoL Codex ships an update weekly, and Underground Story every 5 days. Most recently, LoL Codex was updated on October 16, 2026 and Underground Story on October 24, 2026.

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