# Social Brain Train vs Supernova

The clearest difference is in-app purchases: Social Brain Train at none against Supernova's 10. Social Brain Train also leads on iOS requirement (13.0 vs 17.0). Supernova's advantage is update cadence (every 2 days vs every 5 months) and 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. Social Brain Train asks for nothing beyond the download.

Social Brain Train ships an update every 5 months, Supernova every 2 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Social Brain Train | Supernova |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (75 ratings)](https://appshunter.io/ios/app/supernova-idle-star-forge/id6779555607/reviews)** |
| Number of ratings | — | **75** |
| Positive reviews | — | 77.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 15 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [The University of New South Wales](https://appshunter.io/developer/475256539) | [HUGO ANATOLE PAUL MORICEAU](https://appshunter.io/developer/1845368412) |

## What reviewers say

### Social Brain Train

[App page](https://appshunter.io/ios/app/social-brain-train/id1609162103)

**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 Social Brain Train free?

Social Brain Train is free to download, with no in-app purchases.

### Is Supernova free?

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

### Do Social Brain Train or Supernova have ads?

Neither Social Brain Train nor Supernova shows ads.

### Which is updated more often, Social Brain Train or Supernova?

Social Brain Train ships an update every 5 months, and Supernova every 2 days. Most recently, Social Brain Train was updated on October 27, 2026 and Supernova on October 25, 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.*