Cosmic Synthesis vs Ironvoid
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Cosmic Synthesis
Build your own universe from atoms to galaxies in this idle-clicker adventure. Automate production, refine resources, and unlock cosmic milestones. The game adapts to both active strategists and idle players, offering a unique sci-fi experience.
- Tap to generate matter
- Automate production chains
- Refine resources into planets
- Unlock over 50 cosmic milestones
- Strategic talent tree
- Prestige system for permanent upgrades
- Offline progression
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EXPERIENCE EXPONENTIAL GROWTH Transform raw matter into complex structures in this addictive incremental journey. Harness the power of synthesis and watch your empire scale to impossible heights: Tap to Generate: Create matter with a single touch. Automate Production: Unlock synthesis nodes that work for you 24/7. Refine Resources: Convert Matter into Atoms, Atoms into Molecules, and Molecules into massive Planets! GAME FEATURES Limitless Discovery: Reach over 50 cosmic milestones—from humble asteroids and quasars to black holes and parallel universes. Strategic Talent Tree: Choose your path! Specialize in Speed (production efficiency) or Discovery (rare events & research value). Powerful Prestige: Trigger a "Big Bang" reset to collect Dark Energy and Singularity Points for permanent, god-like upgrades. Offline Progression: Your universe never sleeps. Return to massive gains even after time away. Tactical Control: Pause individual production chains to optimize your strategy and manage resources like a cosmic pro. WHY COSMIC SYNTHESIS? Sleek Sci-Fi Aesthetic: A dark, nebula theme designed for space enthusiasts and science lovers. We value your flow. Watch rewarded ads only when YOU want a massive boost—completely optional. "From quantum foam to the singularity—every click brings you closer to ultimate cosmic mastery." PLAY YOUR WAY Whether you are an Active Strategist who loves micro-managing for maximum efficiency or an Idle Player who enjoys watching the numbers climb while away, Cosmic Synthesis adapts to your style. Are you ready for your own Big Bang?
Ironvoid
An idle RPG where your squad automatically battles enemies on a horizontal line. Focus on building and upgrading your units, managing their gear, and strategically using special stones to enhance their abilities. Progress continues even when you're offline.
- Automatic squad combat
- Deep unit customization
- Loot and gear merging
- Strategic stone socketing
- Offline progression
- No gacha or paywalls
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The line fights on its own. You decide what gets stronger. IRONVOID is an idle RPG that plays out on a strip at the bottom of your screen. Your squad holds the right, enemies come from the left, and the shooting is automatic. You don't aim — you build. BUILD THE SQUAD Five distinct units, a party of three. Each has its own skill tree, its own gear, its own job. Marksman, guardian, medic — the formation is yours. LOOT, MERGE, UPGRADE Every drop is a decision. Fuse nine same-tier pieces in the Cube to force one tier up. Thousands of gear identities: no two pieces of the same tier are alike. STONES AND SOCKETS High-tier gear takes stones. The same stone behaves DIFFERENTLY in a weapon, in armor, and in support — where you set it is permanent. PROGRESS OFFLINE The line keeps fighting while the game is closed. Your patrol report is waiting when you return. AN HONEST ECONOMY No gacha. No paywall. Nothing you buy raises the power ceiling — every stage is beatable for free. The only thing sold is time and convenience.
Screenshots
Verdict
The clearest difference is review sentiment: Ironvoid at 100% against Cosmic Synthesis's 29%. Ironvoid also leads on rating (4.7 vs 4.0) and update cadence (every 3 days vs weekly). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Cosmic Synthesis sells 1 one-off in-app purchase and Ironvoid sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Ironvoid holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 15 and 27 respectively. Written reviews point the same way: 29% of Cosmic Synthesis's written reviews are positive against 100% of Ironvoid's.
Cosmic Synthesis ships an update weekly, Ironvoid every 3 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | Cosmic Synthesis | Ironvoid |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (15 ratings) | 4.7 (27 ratings) — better |
| Positive reviews | 28.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 15 | 27 — better |
| Update frequency | Weekly | Every 3 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 161 MB | 47 MB |
| Age rating | 4+ | 9+ |
| Developer | NETBYTE UG (haftungsbeschränkt) | 2VIBE TECH |
Customer experience
Cosmic Synthesis
Ironvoid
In-app purchases
Cosmic Synthesis
- Premium$1.99
Ironvoid
- Supporter Badge$0.99
- Auto Salvage$1.99
- Early Unit$2.99
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- Bag Expansion$2.99
- 7-Day Gold$3.99
- Marksman$4.99
- Raider$4.99
- Remove Ads$4.99
- 20 Chests$5.99
- Special Unit$6.99
Questions
Is Cosmic Synthesis free?
Is Ironvoid free?
Which has better reviews, Cosmic Synthesis or Ironvoid?
Do Cosmic Synthesis or Ironvoid have ads?
Which is updated more often, Cosmic Synthesis or Ironvoid?
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