# Supernova vs OpenIdle

The clearest difference is in-app purchases: OpenIdle at none against Supernova's 10. OpenIdle also leads on iOS requirement (15.0 vs 17.0). Supernova's advantage is device support (5 vs 3). On price and ads there is nothing between them.

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

## The numbers

| Metric | Supernova | OpenIdle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (52 ratings)](https://appshunter.io/ios/app/supernova-idle-star-forge/id6779555607/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 15 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple TV, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HUGO ANATOLE PAUL MORICEAU](https://appshunter.io/developer/1845368412) | [Dawnsurfer Studios LLC](https://appshunter.io/developer/6783886050) |

## What reviewers say

### 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 |


### OpenIdle

[App page](https://appshunter.io/ios/app/openidle/id6783886047)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Supernova free?

Supernova is free to download, with in-app purchases available.

### Is OpenIdle free?

OpenIdle is free to download, with no in-app purchases.

### Do Supernova or OpenIdle have ads?

Neither Supernova nor OpenIdle shows ads.

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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.*