# Isotope - Chain Reactor — Cascade. Capture. Win.

> Cascade. Capture. Win. (iPhone/iPad app by Anton Babayan.)

- Source: https://appshunter.io/ios/app/isotope-chain-reactor/id6767862108 (this page in markdown: same URL + `.md`)
- Developer: [Anton Babayan](https://appshunter.io/developer/1894698416)
- Category: Games, Puzzle, Strategy
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 13 MB
- Languages: American English
- Released: 2026-05-12
- Data updated: 2026-06-04
- User reviews in markdown: https://appshunter.io/ios/app/isotope-chain-reactor/id6767862108/reviews.md

## What is Isotope?

Drop an orb, watch the board explode. Isotope is a snappy, free-to-play take on the classic chain-reaction strategy game — turn-based, beautifully drawn, and built to be played in two-minute bursts on the bus or two-hour sessions on the couch.

The rules are simple. The strategy is not.

Tap any empty cell, or stack on a cell you already own, to drop one orb. When a cell hits its critical mass — 2 for corners, 3 for edges, 4 for the middle — it FISSIONS. The orbs scatter to every neighbour, instantly capturing whatever was there. Daisy-chain enough explosions and the entire board can flip in a single turn.

Last colour standing wins.

— GAME MODES —

DUEL — One-on-one against seven distinct AI opponents, each with a different playstyle. Start gentle with Sparky on a 4×4 board, work your way up to Nova on the 7×9 grid. Beat each AI with 1, 2, AND 3 cycling colours to fully master it.

WEEKLY CHALLENGE — A handcrafted puzzle every week. Solve it in the exact number of moves to claim the coin reward — Beginner (50 coins) up to Master tier (250 coins).

ENDLESS — Random board, random difficulty, every wave. How far can you push the cascade before the AI corners you?

TRAINER — Both sides played by you, on any board size up to the 9×7 giant. No score, no AI — just pure positional study.

— FEATURES —

• Six visually distinct elements — Uranium, Thorium, Radium, Radon, Polonium, Plutonium — purely cosmetic, mechanically identical
• 1-, 2-, or 3-colour cycling play at higher difficulties for an extra strategic layer
• Boosters: Hint (50 coins), Undo (75 coins), Skip an AI turn (100 coins)
• Daily login bonus + weekly challenge rewards + watch-to-earn coins
• Looping ambient soundtrack and a satisfying blast SFX for every cascade
• Haptic feedback that scales with cascade depth
• Music, Sound FX, Haptics, and Volume all controllable in Settings

— PRIVACY-FIRST —

• 100% playable offline
• No account required — no sign-up, no login, no email
• Save data is stored on your device only
• Personalised ads only with your explicit App Tracking Transparency consent

— FREE-TO-PLAY DETAILS —

Isotope is free to download and play. Optional rewarded ads grant in-game coins; an optional one-time "Remove Ads" purchase disables them entirely. Coins are an in-game currency only — they have no real-world value and can't be exchanged for cash.

Built by Genesis Solutions.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-05-16

- Improved error feedback when ads can't load
- Bug fixes and polish

### 1.0 — 2026-05-12

No release notes.

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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 2026-06-04.*