# CellRobot vs Fill Up Bucket

The clearest difference is price: CellRobot at Free against Fill Up Bucket's $5.00. CellRobot also leads on rating (5.0 vs 4.0) and ads (none vs shown). On ratings volume, in-app purchases and device support there is nothing between them.

CellRobot 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.

CellRobot holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CellRobot ships an update every 6 weeks, Fill Up Bucket every 15 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CellRobot | Fill Up Bucket |
| --- | --- | --- |
| Price | **Free** | $5.00 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cellrobot/id1129134602/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/fill-up-bucket/id1643112964/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 15 months |
| Monetization | **Free** | Ad-supported |
| Size | 142 MB | 100 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing KEYi Technology Co., Ltd.](https://appshunter.io/developer/1129134601) | [Oscar Tsang](https://appshunter.io/developer/416987065) |

## What reviewers say

### CellRobot

[App page](https://appshunter.io/ios/app/cellrobot/id1129134602)

This application serves as the controller for a custom modular robot system. It enables users to build and program various robot configurations, fostering creativity and engineering knowledge through hands-on exploration. Requires the purchase of the robot hardware to function.

**Highlights:** Control custom modular robots, Build hundreds of robot shapes, Visual script programming, Hands-on engineering exploration, Inspires creativity

**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 CellRobot free?

CellRobot 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.

### Which has better reviews, CellRobot or Fill Up Bucket?

CellRobot is rated higher. CellRobot averages 5.0 out of 5 from 1 ratings, while Fill Up Bucket averages 4.0 from 1 ratings.

### Do CellRobot or Fill Up Bucket have ads?

Fill Up Bucket shows ads; CellRobot does not.

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

CellRobot ships an update every 6 weeks, and Fill Up Bucket every 15 months. Most recently, CellRobot was updated on October 10, 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.*