Comparison

Sushi Idle vs Supernova

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

Head to head
About

Sushi Idle

Tap your way to building a vast sushi empire. Hire chefs and construct factories to automate production, even when you're offline. Unlock powerful facilities and upgrade your tapping power to become a sushi tycoon.

Highlights
  • Tap to earn sushi
  • Hire chefs and build factories
  • Automated offline production
  • Unlock unique sushi facilities
  • Upgrade tapping power
  • Prestige system for permanent bonuses
  • Level up rewards
Features
Read full description

Tap sushi and build the ultimate sushi empire! A fun and addictive sushi clicker idle game where every tap grows your sushi business. [Tap to Earn Sushi] Tap the sushi on the screen to earn more sushi. Use your sushi to hire chefs and build factories that automatically produce more. Even when you're not tapping, your idle sushi empire keeps growing. [Unlock Powerful Sushi Facilities] Start with a humble sushi chef and unlock amazing buildings like the Sushi Mine, Sushi Factory, Sushi Magic Tower, Sushi Time Machine, and more. Each facility boosts your sushi production and helps your sushi tycoon empire grow faster. [Upgrade Your Click Power] Boost your tapping power with many upgrades. Improve your tap strength and earn massive sushi with every click in this addictive clicker game. [Prestige for Infinite Growth] Reach 1 trillion sushi to unlock Prestige. Reset your progress to gain permanent bonuses and rebuild your sushi empire even stronger. [Level Up Rewards] Earn player levels based on your total sushi collected. Each level gives huge sushi rewards to accelerate your progress.

About

Supernova

An idle space tycoon game where you fuse hydrogen to grow and detonate stars. Earn permanent power-ups with each supernova to accelerate future runs. Features offline progress and a visually evolving star.

Highlights
  • Fuse hydrogen to create and grow stars
  • Offline progress and production
  • Visually evolving star stages
  • Prestige system with supernova cinematics
  • Deep multiplier stacking and research upgrades
  • Daily missions and streaks
  • Fully offline gameplay
Read full description

Fuse hydrogen into a living star. Grow it. Then blow it up — on purpose. SUPERNOVA is a premium-feel idle game about running a cosmic forge. Tap to spark fusion, build 12 generators from Hydrogen Wisp to Singularity Seed, and watch your star physically evolve — protostar, blue giant, red supergiant — until it is ready to collapse. Detonating it is the point: every supernova grants Neutron Cores, permanent power that makes each new universe faster than the last. WHY YOU'LL STAY • Real progress while you're away — production continues offline (extend the cap up to 24 hours with research), and a welcome-back doubler greets your return • A star that actually changes — five visual stages, rendered live, no canned art • Prestige that feels like a finale — a hand-built supernova cinematic, then a stronger start • Numbers that get gloriously big — Million, Septillion, and far beyond • Milestones every few minutes early on, deep multiplier stacking later • Daily missions and streaks that respect your time • 20 research upgrades that shape every run FAIR BY DESIGN • No ads. None. • No energy bars, no forced waits, no progress walls • Fully offline — no account, no sign-in, no internet required • Nothing collected, nothing tracked • Optional purchases exist (time warps, photons, a one-time Supporter Pack), and the entire game is balanced to be completed without spending anything THE LOOP 1. Tap your star and let generators forge Stardust 2. Hit ownership milestones — each one doubles a generator's output 3. Buy research, stack a Photon Surge boost, fill your Piggy Bank 4. Reach collapse readiness... and go SUPERNOVA 5. Keep your Neutron Cores forever. Start again, faster. Built by a solo developer in SwiftUI and SpriteKit. Every pixel is procedural — no asset packs, no stock art. Dark theme, tuned haptics, Reduce Motion respected. Your first universe is waiting. It starts with one atom.

Screenshots

Sushi Idle3 screens
Supernova4 screens

Verdict

The call

The clearest difference is review sentiment: Supernova at 90% against Sushi Idle's 33%. Supernova also leads on ads (none vs shown) and update cadence (every 2 days vs every 6 weeks). Sushi Idle's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 10). 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. Supernova sells 10 one-off in-app purchases. Sushi Idle asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sushi Idle holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Supernova has 52 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 33% of Sushi Idle's written reviews are positive against 90% of Supernova's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sushi Idle ships an update every 6 weeks, Supernova every 2 days. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

Scorecard9 real differences · 1 level
Sushi Idle versus Supernova: the parameters behind the verdict, then further details
ParameterSushi IdleSupernova
PriceFreeFree
Rating5.0 (1 ratings) — better4.4 (52 ratings)
Positive reviews33.3% of reviews90.0% of reviews — better
Number of ratings152 — better
Update frequencyEvery 6 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple TV, Vision Pro — better
Requires iOS15.0 — better17.0
Further details — not scored
Size119 MB15 MB
Age rating17+4+
DeveloperHAREPPOHUGO ANATOLE PAUL MORICEAU

Customer experience

Sushi Idle

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Supernova

All ratings52 ratings
Positive88.5%
Neutral0.0%
Negative11.5%
Written reviews10 reviews
Positive90.0%
Neutral0.0%
Negative10.0%

In-app purchases

None

Sushi Idle

No in-app purchases

10 purchases

Supernova

One-time10
  • 50 Photons$0.99
  • Time Warp: 4 Hours$1.99
  • Break the Piggy Bank$2.99
Show 7 more
  • Automation Core$3.99
  • Supporter Pack$4.99
  • Time Warp: 24 Hours$4.99
  • 300 Photons$4.99
  • 700 Photons$9.99
  • Time Warp: 7 Days$14.99
  • 1600 Photons$19.99

Questions

Is Sushi Idle free?
Sushi Idle is free to download, with no in-app purchases.
Is Supernova free?
Supernova is free to download, with in-app purchases available.
Which has better reviews, Sushi Idle or Supernova?
Sushi Idle is rated higher. Sushi Idle averages 5.0 out of 5 from 1 ratings, while Supernova averages 4.4 from 52 ratings.
Do Sushi Idle or Supernova have ads?
Sushi Idle shows ads; Supernova does not.
Which is updated more often, Sushi Idle or Supernova?
Sushi Idle ships an update every 6 weeks, and Supernova every 2 days. Most recently, Sushi Idle was updated on September 21, 2026 and Supernova on September 24, 2026.

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