# Space Expansion vs Supernova

The clearest difference is in-app purchases: Space Expansion at none against Supernova's 10. Supernova's advantage is ads (none vs shown) and update cadence (every 2 days vs every 10 days). On price, rating, review sentiment and iOS requirement there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.3 for Space Expansion against 4.4 for Supernova. Both are backed by a comparable volume of ratings — 21 and 73 respectively. Written reviews are what separate them: 75% of Space Expansion's written reviews are positive against 78% of Supernova's.

Space Expansion ships an update every 10 days, Supernova every 2 days. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Space Expansion | Supernova |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (21 ratings)](https://appshunter.io/ios/app/space-expansion-idle-clicker/id6749261582/reviews) | **[4.4 (73 ratings)](https://appshunter.io/ios/app/supernova-idle-star-forge/id6779555607/reviews)** |
| Number of ratings | 21 | **73** |
| Positive reviews | 75.0% of reviews | **77.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 17 MB | 15 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple TV, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Ehret](https://appshunter.io/developer/1829643087) | [HUGO ANATOLE PAUL MORICEAU](https://appshunter.io/developer/1845368412) |

## What reviewers say

### Space Expansion

[App page](https://appshunter.io/ios/app/space-expansion-idle-clicker/id6749261582)

Build and expand a vast space empire by tapping to gather resources, automating production, and exploring new worlds. This idle clicker offers deep progression with clean visuals, perfect for both short breaks and long play sessions.

**Highlights:** Tap to collect resources, Automate production, Upgrade planets, Explore new worlds, Global leaderboard, Minimalist idle clicker

**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 Space Expansion free?

Space Expansion 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, Space Expansion or Supernova?

Supernova is rated higher. Space Expansion averages 4.3 out of 5 from 21 ratings, while Supernova averages 4.4 from 73 ratings.

### Do Space Expansion or Supernova have ads?

Space Expansion shows ads; Supernova does not.

### Which is updated more often, Space Expansion or Supernova?

Space Expansion ships an update every 10 days, and Supernova every 2 days. Most recently, Space Expansion was updated on October 24, 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.*