Comparison

Cosmic Synthesis vs Ironvoid

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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?

About

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.

Highlights
  • Automatic squad combat
  • Deep unit customization
  • Loot and gear merging
  • Strategic stone socketing
  • Offline progression
  • No gacha or paywalls
Features
Read full description

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

Cosmic Synthesis4 screens
Ironvoid4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Cosmic Synthesis ships an update weekly, Ironvoid every 3 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 7 level
Cosmic Synthesis versus Ironvoid: the parameters behind the verdict, then further details
ParameterCosmic SynthesisIronvoid
PriceFreeFree
Rating4.0 (15 ratings)4.7 (27 ratings) — better
Positive reviews28.6% of reviews100.0% of reviews — better
Number of ratings1527 — better
Update frequencyWeeklyEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size161 MB47 MB
Age rating4+9+
DeveloperNETBYTE UG (haftungsbeschränkt)2VIBE TECH

Customer experience

Cosmic Synthesis

All ratings15 ratings
Positive60.0%
Neutral33.3%
Negative6.7%
Written reviews7 reviews
Positive28.6%
Neutral42.9%
Negative28.6%

Ironvoid

All ratings24 ratings
Positive91.7%
Neutral4.2%
Negative4.2%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Cosmic Synthesis

One-time1
  • Premium$1.99
10 purchases

Ironvoid

One-time10
  • Supporter Badge$0.99
  • Auto Salvage$1.99
  • Early Unit$2.99
Show 7 more
  • 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?
Cosmic Synthesis is free to download, with in-app purchases available.
Is Ironvoid free?
Ironvoid is free to download, with in-app purchases available.
Which has better reviews, Cosmic Synthesis or Ironvoid?
Ironvoid is rated higher. Cosmic Synthesis averages 4.0 out of 5 from 15 ratings, while Ironvoid averages 4.7 from 27 ratings.
Do Cosmic Synthesis or Ironvoid have ads?
Both Cosmic Synthesis and Ironvoid show ads.
Which is updated more often, Cosmic Synthesis or Ironvoid?
Cosmic Synthesis ships an update weekly, and Ironvoid every 3 days. Most recently, Cosmic Synthesis was updated on November 5, 2026 and Ironvoid on November 10, 2026.

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