# Robo Rocket vs Float or Sink

The clearest difference is in-app purchases: Float or Sink at none against Robo Rocket's 1. Robo Rocket's advantage is ads (none vs shown) and update cadence (every 2 months vs every 47 months). On price and device support there is nothing between them.

Both are free to download. Robo Rocket sells 1 one-off in-app purchase. Float or Sink asks for nothing beyond the download.

Robo Rocket holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Robo Rocket has 133 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of Robo Rocket's written reviews are positive against 50% of Float or Sink's.

Robo Rocket ships an update every 2 months, Float or Sink every 47 months. The most recent releases landed on October 12, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Robo Rocket | Float or Sink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (133 ratings)](https://appshunter.io/ios/app/robo-rocket/id932469268/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/float-or-sink/id1419642133/reviews) |
| Number of ratings | **133** | 1 |
| Positive reviews | **71.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 47 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 49 MB | 90 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fehners Software LLP](https://appshunter.io/developer/395357584) | [Apps Bergman Ltda](https://appshunter.io/developer/1117417290) |

## What reviewers say

### Robo Rocket

[App page](https://appshunter.io/ios/app/robo-rocket/id932469268)

Help mischievous robots complete chores like cleaning oil spills and organizing parts to prepare a rocket for blast off. This interactive game tests shape, memory, and logic skills for ages 3-6 and beyond.

**Highlights:** Shape matching and logic puzzles, Interactive backgrounds, 5 levels of rocket exploration, Child-friendly interface, Hidden interactive areas, No strict gameplay rules

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Float or Sink

[App page](https://appshunter.io/ios/app/float-or-sink/id1419642133)

Test your knowledge of physics by guessing if over 100 illustrated objects will float or sink. You have 10 seconds per object to make your choice, with real images to aid your decision.

**Highlights:** Over 100 objects, Illustrated objects with real images, 10-second time limit per object, Simple guessing gameplay, Suitable for all ages

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

**In-app purchases:** none


## Frequently asked questions

### Is Robo Rocket free?

Robo Rocket is free to download, with in-app purchases available.

### Is Float or Sink free?

Float or Sink is free to download, with no in-app purchases.

### Which has better reviews, Robo Rocket or Float or Sink?

Robo Rocket is rated higher. Robo Rocket averages 4.4 out of 5 from 133 ratings, while Float or Sink averages 4.0 from 1 ratings.

### Do Robo Rocket or Float or Sink have ads?

Float or Sink shows ads; Robo Rocket does not.

### Which is updated more often, Robo Rocket or Float or Sink?

Robo Rocket ships an update every 2 months, and Float or Sink every 47 months. Most recently, Robo Rocket was updated on October 12, 2026 and Float or Sink on September 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.*