# Gravity 80s vs GoBrain

The clearest difference is update cadence: Gravity 80s at every 2 days against GoBrain's every 4 days. GoBrain's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Gravity 80s ships an update every 2 days, GoBrain every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gravity 80s | GoBrain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 6 MB | 24 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [kota morishita](https://appshunter.io/developer/457218231) | [Tran Trung Hieu](https://appshunter.io/developer/1436041400) |

## What reviewers say

### Gravity 80s

[App page](https://appshunter.io/ios/app/gravity-80s/id6760158837)

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

**In-app purchases:** none


### GoBrain

[App page](https://appshunter.io/ios/app/gobrain-puzzles-brain-games/id6782550523)

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

**In-app purchases:** none


## Frequently asked questions

### Is Gravity 80s free?

Gravity 80s is free to download, with no in-app purchases.

### Is GoBrain free?

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

### Do Gravity 80s or GoBrain have ads?

Neither Gravity 80s nor GoBrain shows ads.

### Which is updated more often, Gravity 80s or GoBrain?

Gravity 80s ships an update every 2 days, and GoBrain every 4 days. Most recently, Gravity 80s was updated on October 28, 2026 and GoBrain on October 31, 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.*