Comparison

Idle Universe vs Primedor

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

Head to head
About

Idle Universe

Tap to gather matter and create interstellar objects, from particles to galaxies. Objects automatically generate more matter, allowing for endless universe expansion. Unlock divine powers, upgrade objects, and utilize special abilities to grow your cosmic creation.

Highlights
  • Create 31 interstellar objects
  • Unlock 24 Divine Powers
  • Upgrade objects with multiple options
  • Obtain Dark Matter for special abilities
  • Gain Antimatter via prestige for permanent upgrades
  • Compete on leaderboards
  • Earn daily rewards and achievements
Features
Read full description

Create your own universe in this new addictive idle game! First, you have to gather matter yourself by tapping; but once you've got enough matter to create a couple of objects in your universe, these will produce more matter automatically by colliding. Features: • Create many different interstellar objects - from tiny particles to your own planets, galaxies and even more! • Unlock Divine Powers, powerful permanent upgrades! • Speed up the growth of your universe with even more powerful Evolvements, transcendental upgrades that persist even through restarts! • Upgrade all of your objects in various ways! You will need to find a strategy that fits your playstyle to succeed in the late-game! • Obtain Dark Matter and use special abilities like Augmented Production and Tapping! • Get even bigger with prestige! Every time you restart the game, you will obtain Antimatter, which can be used to buy permanent super upgrades! • Join the competition with a global leaderboard! • Get daily rewards! • Earn Achievements, not just for the sake of it, but to increase your production even further! There're plenty of opportunities in the game - you can play for weeks and never get bored! Try our new idle game and create your very own universe :)

About

Primedor

A strategic card game where players build a mathematical empire by collecting tokens, purchasing cards with permanent bonuses, and claiming legendary mathematicians. Challenge intelligent AI opponents in games of flexible speed and track your progress.

Highlights
  • Strategic token economy
  • Intelligent AI opponents
  • 90 unique math cards
  • 10 mathematicians to claim
  • Flexible gameplay speed
  • Progress tracking
Features
Read full description

PRIMEDOR is a strategic card game where you build a mathematical empire through careful planning and clever token management. Challenge yourself against three intelligent AI opponents—Bob, Abby, Emma, and Ann—as you purchase cards, collect tokens, and claim famous mathematicians. Core Gameplay: Collect mathematical tokens (Prime, Even, Odd, Square, Sequence, Perfect) to purchase valuable cards. Each card provides permanent bonuses and victory points. Build powerful card synergies to claim the patronage of legendary mathematicians like Euclid, Pythagoras, and Emmy Noether. Features: Strategic Token Economy: Manage a limited supply of tokens to outmaneuver opponents Intelligent AI: Face opponents that adapt their strategy and make calculated decisions 90 Unique Cards: Collect cards featuring famous mathematical concepts and sequences 10 Mathematicians to Claim: Earn bonuses from history's greatest mathematical minds Flexible Gameplay: Play 2-4 player games at your preferred speed (Slow, Normal, Fast) Track Your Progress: Monitor your stats across different player counts Beautiful Interface: Smooth animations and immersive sound design Perfect for strategy game lovers, math enthusiasts, and anyone who enjoys deep, engaging gameplay.

Screenshots

Idle Universe4 screens
Primedor4 screens

Verdict

The call

The clearest difference is rating: Primedor at 5.0 against Idle Universe's 4.3. Primedor also leads on in-app purchases (none vs 7) and ads (none vs shown). Idle Universe's advantage is ratings volume (1.5K vs 3) and device support (3 vs 1). On price 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. Idle Universe sells 7 one-off in-app purchases. Primedor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Primedor holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Idle Universe has 1.5K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 65% of Idle Universe's written reviews are positive against 100% of Primedor's.

UpkeepUpdate frequency

Idle Universe ships an update every 3 weeks, Primedor every 3 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard9 real differences · 1 level
Idle Universe versus Primedor: the parameters behind the verdict, then further details
ParameterIdle UniversePrimedor
PriceFreeFree
Rating4.3 (1.5K ratings)5.0 (3 ratings) — better
Positive reviews65.2% of reviews100.0% of reviews — better
Number of ratings1.5K — better3
Update frequencyEvery 3 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size299 MB11 MB
Age rating4+4+
DeveloperDominik StallmannHarold Sultan

Customer experience

Idle Universe

All ratings1,517 ratings
Positive82.2%
Neutral9.2%
Negative8.6%
Written reviews299 reviews
Positive65.2%
Neutral15.4%
Negative19.4%

Primedor

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Idle Universe

Reported bugs

4 issues
  • Prestige button not working
  • Ads not providing expected rewards
  • Frequent crashes and freezes
  • Incorrect offline progress tracking

Requested features

4 requests
  • Offline progress tracking
  • More prestige layers and upgrades
  • Better optimization for larger screens
  • Improved tutorial and explanations

Primedor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Idle Universe

One-time7
  • 250 Dark Matter$3.99
  • Double Antimatter Gains$4.99
  • +100% Transcendence Exp$4.99
Show 4 more
  • Remove All Ads$8.99
  • 1000 Dark Matter$9.99
  • 2500 Dark Matter$24.99
  • 10000 Dark Matter$69.99
None

Primedor

No in-app purchases

Questions

Is Idle Universe free?
Idle Universe is free to download, with in-app purchases available.
Is Primedor free?
Primedor is free to download, with no in-app purchases.
Which has better reviews, Idle Universe or Primedor?
Primedor is rated higher. Idle Universe averages 4.3 out of 5 from 1.5K ratings, while Primedor averages 5.0 from 3 ratings.
Do Idle Universe or Primedor have ads?
Idle Universe shows ads; Primedor does not.
Which is updated more often, Idle Universe or Primedor?
Idle Universe ships an update every 3 weeks, and Primedor every 3 days. Most recently, Idle Universe was updated on October 29, 2026 and Primedor on October 24, 2026.

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