# Gravity One vs Brain Physics Drop

The clearest difference is in-app purchases: Gravity One at none against Brain Physics Drop's 9. Brain Physics Drop's advantage is update cadence (every 3 weeks vs every 9 months) and iOS requirement (8.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Brain Physics Drop sells 9 one-off in-app purchases. Gravity One asks for nothing beyond the download.

Gravity One ships an update every 9 months, Brain Physics Drop every 3 weeks. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Gravity One | Brain Physics Drop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/brain-physics-drop/id1191210843/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 97 MB |
| Requires iOS | 18.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sami Salkosuo](https://appshunter.io/developer/820432278) | [BTPRO BILGI TEKNOLOJILERI ANONIM SIRKETI](https://appshunter.io/developer/1128132478) |

## What reviewers say

### Gravity One

[App page](https://appshunter.io/ios/app/gravity-one/id820432275)

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain Physics Drop

[App page](https://appshunter.io/ios/app/brain-physics-drop/id1191210843)

Draw lines and shapes to solve physics-based puzzles by guiding an emoji. This game offers challenging brain teasers for all ages, with multiple solutions to discover and the ability to compete with friends.

**Highlights:** Draw lines and shapes freely, Solve physics-based puzzles, Guide an emoji with gravity, Multiple solutions per puzzle, Compete with friends, Brain training challenges

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stage 2 | $0.99 | one-time |
| Stage 3 | $0.99 | one-time |
| Stage 4 | $0.99 | one-time |
| Stage 5 | $0.99 | one-time |
| Stage 6 | $0.99 | one-time |
| Stage 7 | $0.99 | one-time |
| Stage 8 | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| All Hints | $2.99 | one-time |


## Frequently asked questions

### Is Gravity One free?

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

### Is Brain Physics Drop free?

Brain Physics Drop is free to download, with in-app purchases available.

### Do Gravity One or Brain Physics Drop have ads?

Neither Gravity One nor Brain Physics Drop shows ads.

### Which is updated more often, Gravity One or Brain Physics Drop?

Gravity One ships an update every 9 months, and Brain Physics Drop every 3 weeks. Most recently, Gravity One was updated on October 2, 2026 and Brain Physics Drop on September 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.*