Comparison

Judgement Day vs Supernova

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

Head to head
About

Judgement Day

Features
Read full description

Where do you think everyone belongs? In this game, you will need to sort each character according to their unique qualities. YOU have the power to decide who goes where!

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

Judgement Day4 screens
Supernova4 screens

Verdict

The call

The clearest difference is in-app purchases: Judgement Day at none against Supernova's 10. Judgement Day also leads on iOS requirement (11.0 vs 17.0). Supernova's advantage is ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). 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. Judgement Day asks for nothing beyond the download.

UpkeepUpdate frequency

Judgement Day ships an update every 3 weeks, Supernova every 2 days. The most recent releases landed on October 13, 2026 and October 21, 2026 respectively.

Scorecard5 real differences · 5 level
Judgement Day versus Supernova: the parameters behind the verdict, then further details
ParameterJudgement DaySupernova
PriceFreeFree
Rating—4.4 (73 ratings) — better
Positive reviews—77.8% of reviews
Number of ratings—73 — better
Update frequencyEvery 3 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple TV, Vision Pro — better
Requires iOS11.0 — better17.0
Further details — not scored
Size927 MB15 MB
Age rating9+4+
DeveloperCosmic Pulse Inc.HUGO ANATOLE PAUL MORICEAU

In-app purchases

None

Judgement Day

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 Judgement Day free?
Judgement Day is free to download, with no in-app purchases.
Is Supernova free?
Supernova is free to download, with in-app purchases available.
Do Judgement Day or Supernova have ads?
Judgement Day shows ads; Supernova does not.
Which is updated more often, Judgement Day or Supernova?
Judgement Day ships an update every 3 weeks, and Supernova every 2 days. Most recently, Judgement Day was updated on October 13, 2026 and Supernova on October 21, 2026.

Other comparisons