Comparison

ChainReaction vs Chain Reaction OG

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

Head to head
About

ChainReaction

Strategize and place atoms to dominate a game board. Outsmart the AI with thoughtful moves and anticipate your opponent's actions until the final outcome.

Highlights
  • Atomic placement and explosions
  • Board conquest gameplay
  • Single-player against AI
  • Strategic thinking required
  • Turn-based gameplay
Features
Read full description

Place and explode your atoms to conquer the board. Be better than the computer. Think and hope until the end!

About

Chain Reaction OG

Engage in a fast-paced local multiplayer strategy game for 2-8 players. Place atoms to trigger explosive chain reactions, capture the board, and eliminate opponents. Simple to learn but requires clever planning and timing for mastery.

Highlights
  • Local multiplayer for 2-8 players
  • Fast-paced strategy matches
  • Customizable board sizes and styles
  • Simple controls
  • No account required
  • Unlockable orb finishes and arena skins
Features
Read full description

Build critical mass. Trigger explosive chain reactions. Capture the entire board. Chain Reaction OG is a fast-paced local multiplayer strategy game for 2–8 players. Place your atoms, take control of the arena, and unleash powerful cascades that can transform the board in a single move. Every turn matters. Protect your territory, control valuable corners and edges, and wait for the perfect moment to start an unstoppable chain reaction. The rules are simple, but mastering the board takes clever planning, timing, and tactical thinking. # LOCAL MULTIPLAYER FOR 2–8 PLAYERS Gather friends and family for competitive pass-and-play matches on one device. No accounts, complicated setup, or lengthy tutorials—choose your players, select an arena, and start playing. # SIMPLE TO LEARN, HARD TO MASTER Place atoms inside your cells to build critical mass. When a cell reaches its limit, it explodes and spreads atoms into neighboring spaces. Capture rival cells, create massive combos, and eliminate every opponent to become the last player standing. One carefully planned move can trigger a board-clearing chain reaction. # CUSTOMIZE EVERY MATCH • Local pass-and-play multiplayer for 2–8 players • Fast, competitive strategy matches • Four board sizes: Small, Medium, Large, and Huge • Multiple orb finishes and arena styles • Smooth animations and satisfying chain reactions • Responsive, easy-to-use controls • No account required Whether you are looking for a quick two-player battle, a family party game, or an intense multiplayer strategy challenge, Chain Reaction OG makes every match unpredictable. # FREE TO PLAY Play Chain Reaction OG for free. Ads are shown between completed matches, so gameplay is never interrupted. # CHAIN REACTION PRO Upgrade to Chain Reaction Pro with a monthly subscription to: • Remove all ads • Unlock every orb finish • Unlock every arena skin Internet access is used for purchases, advertising, and diagnostics. # DISCLAIMER Chain Reaction OG is an independently developed game. It is not affiliated with, endorsed by, sponsored by, or officially connected to any other game developer, publisher, brand, product, or platform. Any third-party names or trademarks are the property of their respective owners. Gather your rivals, choose your board, and start the next explosive battle in Chain Reaction OG. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ChainReaction4 screens
Chain Reaction OG1 screens

Verdict

The call

The clearest difference is rating: Chain Reaction OG at 3.0 against ChainReaction's 1.0. ChainReaction's advantage is ads (none vs shown) and update cadence (every 3 days vs monthly). On price, ratings volume, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Chain Reaction OG holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

ChainReaction ships an update every 3 days, Chain Reaction OG monthly. Both last shipped on October 25, 2026.

Scorecard5 real differences · 5 level
ChainReaction versus Chain Reaction OG: the parameters behind the verdict, then further details
ParameterChainReactionChain Reaction OG
PriceFreeFree
Rating1.0 (1 ratings)3.0 (2 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings12 — better
Update frequencyEvery 3 days — betterMonthly
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.5 — better18.0
Further details — not scored
Size2 MB50 MB
Age rating4+4+
DeveloperJoerg HoehneMayank Kumar Gupta

In-app purchases

None

ChainReaction

No in-app purchases

None

Chain Reaction OG

No in-app purchases

Questions

Is ChainReaction free?
ChainReaction is free to download, with no in-app purchases.
Is Chain Reaction OG free?
Chain Reaction OG is free to download, with no in-app purchases.
Which has better reviews, ChainReaction or Chain Reaction OG?
Chain Reaction OG is rated higher. ChainReaction averages 1.0 out of 5 from 1 ratings, while Chain Reaction OG averages 3.0 from 2 ratings.
Do ChainReaction or Chain Reaction OG have ads?
Chain Reaction OG shows ads; ChainReaction does not.
Which is updated more often, ChainReaction or Chain Reaction OG?
ChainReaction ships an update every 3 days, and Chain Reaction OG monthly. Most recently, ChainReaction was updated on October 25, 2026 and Chain Reaction OG on October 25, 2026.

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