# Block vs Block vs Planet Gravity

The clearest difference is price: Planet Gravity at Free against Block vs Block's $4.99. Planet Gravity also leads on ads (none vs shown). Block vs Block's advantage is review sentiment (67% vs 25%). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Planet Gravity is free to download; Block vs Block costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Block vs Block ships an update every 9 months, Planet Gravity every 14 months. The most recent releases landed on September 23, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | Block vs Block | Planet Gravity |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/block-vs-block-reverse/id834235298/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **66.7% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 months** | Every 14 months |
| Monetization | Paid | **Free** |
| Size | 25 MB | 5 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Niagara Mobile LLC](https://appshunter.io/developer/1039399999) |

## What reviewers say

### Block vs Block

[App page](https://appshunter.io/ios/app/block-vs-block-reverse/id834235298)

Experience a unique puzzle game where blocks ascend instead of fall. Challenge yourself with 16 different shapes and 4 special items. Play against the computer or another human on iPad.

**Highlights:** Reverse gravity gameplay, 16 different block shapes, 4 special items, VS mode against computer, Human vs Human mode (iPad only)

**In-app purchases:** none


### Planet Gravity

[App page](https://appshunter.io/ios/app/planet-gravity/id995682820)

Explore the gravitational pull of different celestial bodies. Watch pendulums swing and collide under varying gravitational forces, offering a unique physics simulation experience.

**Highlights:** Select different planets for unique gravity, Observe pendulum collisions, Physics-based simulation, Educational planet facts, Interactive entertainment

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Block vs Block free?

Block vs Block costs $4.99, with no in-app purchases.

### Is Planet Gravity free?

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

### Do Block vs Block or Planet Gravity have ads?

Block vs Block shows ads; Planet Gravity does not.

### Which is updated more often, Block vs Block or Planet Gravity?

Block vs Block ships an update every 9 months, and Planet Gravity every 14 months. Most recently, Block vs Block was updated on September 23, 2026 and Planet Gravity on June 7, 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.*