# Chain Reaction Online — Explosive multiplayer strategy

> Explosive multiplayer strategy (iPhone/iPad app by Adhip R.)

- Source: https://appshunter.io/ios/app/chain-reaction-online/id6804805254 (this page in markdown: same URL + `.md`)
- Developer: [Adhip R](https://appshunter.io/developer/6787505434)
- Category: Games, Board, Strategy
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 26 MB
- Languages: American English
- Released: 2026-09-09
- Data updated: 2026-09-21

## What is Chain Reaction Online?

Chain Reaction Online is a fast, ruthless strategy game about turning your opponent's board into your own.

Place an orb in any empty cell or one you already own. Fill a cell past its limit and it explodes into its neighbours — capturing them. One well-placed orb can cascade across the entire grid and flip a losing position in a single turn.

Simple to learn. The chain reactions are where it gets interesting.

MODES
• Quick Match — get paired with a real opponent in seconds
• Correspondence — up to 3 days a turn, play at your own pace
• Private rooms — share a 6-letter code and play a friend anywhere
• Pass and play — 2 to 4 players on one device
• vs AI — four difficulties, from Easy to a genuinely mean Expert
• Campaign — 100 hand-built levels with escalating pressure
• Puzzles — 24 positions with a win you can force, if you find it
• Daily Challenge — one new objective every day
• Mid-Game Takeover — drop into a half-played board and try to turn it around

BOARDS THAT CHANGE THE GAME
• Six shapes — Classic, Donut, Diamond, Cross, Pillars and Gates
• Walls change which cells are corners, so the whole strategy shifts
• 5x5, 6x6 and 7x7 grids

COMPETE
• Elo rating with 16 tiers, from Newcomer to Ascendant
• Challenge any player directly, or rematch a recent opponent
• All-Time, Weekly and Takeover leaderboards
• Achievements for chains, streaks and comebacks
• Track your best chain, win streak and match history

BUILT TO PLAY ANYWHERE
• Campaign, AI, puzzles and pass-and-play work fully offline
• Results sync automatically when you are back online
• Hints when you are stuck — two per game
• No ads. No in-app purchases. No account or sign-up needed.

Every orb you place is a threat. Every cell you fill is a risk. Chain reactions do not care whose turn it started on.

## Is Chain Reaction Online safe?

Not enough ratings yet to assess Chain Reaction Online.

## Is Chain Reaction Online legit?

Chain Reaction Online has limited verification signals. The AppsHunter Legitimacy Score for Chain Reaction Online is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 2.7.0 — 2026-09-12

The biggest update since launch.

NEW WAYS TO PLAY
• Puzzles — 24 positions with a win you can force, if you find it
• Board shapes — Donut, Diamond, Cross, Pillars and Gates. Walls change which cells are corners, so the whole strategy shifts with them
• Hints — two per game, showing the move the Expert would play
• Offline play — local, vs-AI, campaign and puzzles all work with no connection, and your results sync when you are back

A MUCH STRONGER OPPONENT
• The Expert AI has been rewritten and now searches ahead properly instead of judging one move at a time
• It reacts to how the game is going, and rings the cell it is about to take so you can see the move coming

ONLINE
• Correspondence games — up to 3 days a turn. Close the app and come back later; Your Games on the home screen keeps your place
• Challenge a specific player from the leaderboard, and answer challenges from your inbox
• Recent opponents, with your head-to-head record against each
• Share a link that opens the app straight into your game
• Rematch from the end of a game, win or lose

POLISH
• The board is clearer to read, and each side's orb count is now on screen as you play
• Daily login streak, and achievement unlocks now tell you about it
• The Ring/Silent switch is respected

FIXED
• Report an Issue and Suggest a Feature could stop the app responding
• The leaderboard podium mislabelled placements and could move its crown between refreshes
• Some screens showed "Rank #" with no number before you had finished a game

### 2.6.1 — 2026-09-09

No release notes.

## Apps similar to Chain Reaction Online

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Chain Reaction OG](https://appshunter.io/ios/app/chain-reaction-og/id6792323513) | — | Free | Games |
| [Chain Reaction(Online)](https://appshunter.io/ios/app/chain-reactiononline/id6748000370) | 4.7 (15) | Free | Games |
| [2 Player Games - Offline](https://appshunter.io/ios/app/2-player-games-offline/id6743223202) | 4.5 (109) | Free | Games |
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| [Liar's Cards - Ship of Deceit](https://appshunter.io/ios/app/liars-cards-ship-of-deceit/id6738264513) | 4.5 (255) | Free | Games |
| [Chess Online - Duel Friends!](https://appshunter.io/ios/app/chess-online-duel-friends/id1513319346) | 4.4 (1,102) | Free | Games |

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*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 2026-09-21.*