# Planet Gravity vs Fill Up Bucket

The clearest difference is price: Planet Gravity at Free against Fill Up Bucket's $5.00. Planet Gravity also leads on ads (none vs shown) and review sentiment (25% vs 13%). Fill Up Bucket's advantage is iOS requirement (15.6 vs 17.6). On update cadence, in-app purchases and device support there is nothing between them.

Planet Gravity is free to download; Fill Up Bucket costs $5.00 up front. Neither carries in-app purchases, so what you see is what you pay.

Planet Gravity ships an update every 14 months, Fill Up Bucket every 15 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Planet Gravity | Fill Up Bucket |
| --- | --- | --- |
| Price | **Free** | $5.00 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/fill-up-bucket/id1643112964/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **25.0% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 14 months** | Every 15 months |
| Monetization | **Free** | Ad-supported |
| Size | 5 MB | 100 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Niagara Mobile LLC](https://appshunter.io/developer/1039399999) | [Oscar Tsang](https://appshunter.io/developer/416987065) |

## What reviewers say

### 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


### Fill Up Bucket

[App page](https://appshunter.io/ios/app/fill-up-bucket/id1643112964)

A retro-style puzzle game where you draw lines to redirect water flow into buckets. It offers a simple yet challenging experience for players seeking a brain-teasing challenge.

**Highlights:** Retro LCD style graphics, Draw lines to change water direction, Simple yet challenging gameplay, Puzzle-solving mechanics

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Planet Gravity free?

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

### Is Fill Up Bucket free?

Fill Up Bucket costs $5.00, with no in-app purchases.

### Do Planet Gravity or Fill Up Bucket have ads?

Fill Up Bucket shows ads; Planet Gravity does not.

### Which is updated more often, Planet Gravity or Fill Up Bucket?

Planet Gravity ships an update every 14 months, and Fill Up Bucket every 15 months. Most recently, Planet Gravity was updated on October 24, 2026 and Fill Up Bucket on October 24, 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.*