Comparison

Idle Universe vs Gravity OB1

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 :) • Music by Ckavi! • Graphics by Pocido!

About

Gravity OB1

Features
Read full description

GRAVITY OB1 turns orbital physics into pure arcade thrill. Sling your ship across a living solar system, ride the pull of planets and black holes, and master gravity itself — because the radar is your only map. THREE GAMES IN ONE - CRUISE — Pure flight. No weapons, no boosters. Just you, gravity, and one perfect slingshot to the target. - COMBAT — Full war. Dodge mines, missiles, and asteroid lasers. Boosters and shields at your side. - ASSAULT — Take the fight to the enemy. Dogfight alien ships with a twin-stick control scheme, lock into orbit around planets, and rain fire on your foes. MASTER GRAVITY Every shot is a puzzle. Planets bend your flight path, black holes swallow the careless, and the sun is always hungry. Learn to read the pull, thread the needle, and let physics carry you home. ORBIT LOCK Fly close to any planet and lock into a stable orbit — circle your target hands-free while your cannons and homing missiles pour fire into it. A gravity-powered gunship run like nothing else on mobile. A FLEET OF SHIPS Unlock 8 distinct ships, from the nimble Needle interceptor to the mighty Bastion battleship. Each flies differently — light and fast, or heavy and armored but harder to pull free of gravity's grip. 100 MISSIONS + SUPER NOVA Ten levels across every mode, each with escalating hazards: moving asteroids, black holes, orbiting worlds, and finally the endless waves of Super Nova. FEATURES - Real gravity physics — no two shots ever feel the same - Three completely different game modes - 8 unlockable ships with unique handling - 8 alien enemy types with distinct behaviors - Homing missiles, cannons, boosters, and shields - A tactical radar you'll learn to live by - Premium hand-crafted art and an original soundtrack Free to play the opening of every mode. Unlock the full campaign once — yours forever. Slingshot in. Master the pull. Clear the system.

Screenshots

Idle Universe4 screens
Gravity OB14 screens

Verdict

The call

The clearest difference is ads: Gravity OB1 at none against Idle Universe's shown. Gravity OB1 also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (13.4 vs 15.0). On price, 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. Idle Universe sells 7 one-off in-app purchases and Gravity OB1 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Idle Universe ships an update every 3 weeks, Gravity OB1 every 5 days. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 7 level
Idle Universe versus Gravity OB1: the parameters behind the verdict, then further details
ParameterIdle UniverseGravity OB1
PriceFreeFree
Rating4.3 (1.5K ratings) — better—
Positive reviews65.2% of reviews—
Number of ratings1.5K — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.4 — better
Further details — not scored
Size281 MB25 MB
Age rating4+4+
DeveloperDominik StallmannQ8blog

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

Gravity OB1

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
1 purchases

Gravity OB1

One-time1
  • Unlock Full Game$3.99

Questions

Is Idle Universe free?
Idle Universe is free to download, with in-app purchases available.
Is Gravity OB1 free?
Gravity OB1 is free to download, with in-app purchases available.
Do Idle Universe or Gravity OB1 have ads?
Idle Universe shows ads; Gravity OB1 does not.
Which is updated more often, Idle Universe or Gravity OB1?
Idle Universe ships an update every 3 weeks, and Gravity OB1 every 5 days. Most recently, Idle Universe was updated on October 6, 2026 and Gravity OB1 on September 28, 2026.

Other comparisons