# Judgement Day vs Supernova

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.

Both are free to download. Supernova sells 10 one-off in-app purchases. Judgement Day asks for nothing beyond the download.

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.

## The numbers

| Metric | Judgement Day | Supernova |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (73 ratings)](https://appshunter.io/ios/app/supernova-idle-star-forge/id6779555607/reviews)** |
| Number of ratings | — | **73** |
| Positive reviews | — | 77.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 927 MB | 15 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Vision Pro** |
| Age rating | 9+ | 4+ |
| Developer | [Cosmic Pulse Inc.](https://appshunter.io/developer/1729703636) | [HUGO ANATOLE PAUL MORICEAU](https://appshunter.io/developer/1845368412) |

## What reviewers say

### Judgement Day

[App page](https://appshunter.io/ios/app/judgement-day/id1580736178)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Supernova

[App page](https://appshunter.io/ios/app/supernova-idle-star-forge/id6779555607)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Photons | $0.99 | one-time |
| Time Warp: 4 Hours | $1.99 | one-time |
| Break the Piggy Bank | $2.99 | one-time |
| Automation Core | $3.99 | one-time |
| Supporter Pack | $4.99 | one-time |
| Time Warp: 24 Hours | $4.99 | one-time |
| 300 Photons | $4.99 | one-time |
| 700 Photons | $9.99 | one-time |
| Time Warp: 7 Days | $14.99 | one-time |
| 1600 Photons | $19.99 | one-time |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*