# Stretch Robot vs Tappy Crab

Stretch Robot and Tappy Crab both sit at 4.7 stars, but that hides the real split: 100% of Tappy Crab's written reviews are positive against 57% of Stretch Robot's. Tappy Crab also leads on ads (none vs shown) and update cadence (every 4 weeks vs every 4 months). Stretch Robot's advantage is ratings volume (124 vs 19). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Stretch Robot sells 1 one-off in-app purchase and Tappy Crab sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Stretch Robot against 4.8 for Tappy Crab. That said, the two scores are not equally well evidenced: Stretch Robot has 124 ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 57% of Stretch Robot's written reviews are positive against 100% of Tappy Crab's.

Stretch Robot ships an update every 4 months, Tappy Crab every 4 weeks. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Stretch Robot | Tappy Crab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (124 ratings)](https://appshunter.io/ios/app/stretch-robot-physics-puzzle/id6473294292/reviews) | **[4.8 (19 ratings)](https://appshunter.io/ios/app/tappy-crab/id6736835518/reviews)** |
| Number of ratings | **124** | 19 |
| Positive reviews | 57.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 185 MB | 202 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Lunapp, TOO](https://appshunter.io/developer/1669287025) | [Dimitri Liapis](https://appshunter.io/developer/1764325190) |

## What reviewers say

### Stretch Robot

[App page](https://appshunter.io/ios/app/stretch-robot-physics-puzzle/id6473294292)

Control a robot with extendable arms to solve physics-based puzzles. Stretch, grab, and swing to overcome obstacles like spikes and gaps using smart thinking and elastic mechanics. Enjoy handcrafted levels with a casual pace, perfect for quick, engaging brain teasers.

**Highlights:** Physics-based puzzle gameplay, Stretch mechanics, Handcrafted levels, Logic challenges, Casual pace, Intuitive physics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Tappy Crab

[App page](https://appshunter.io/ios/app/tappy-crab/id6736835518)

Tap the screen to guide a crab through an underwater obstacle course. Use bubbles for defense against ocean floor hazards. Enjoy this free-to-play casual arcade experience.

**Highlights:** Tap to change direction, Avoid ocean floor rocks, Use bubbles for defense, Free to play, Casual arcade gameplay

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Coins | $0.99 | one-time |
| 500 Coins | $4.99 | one-time |
| 1000 Coins | $9.99 | one-time |


## Frequently asked questions

### Is Stretch Robot free?

Stretch Robot is free to download, with in-app purchases available.

### Is Tappy Crab free?

Tappy Crab is free to download, with in-app purchases available.

### Which has better reviews, Stretch Robot or Tappy Crab?

Tappy Crab is rated higher. Stretch Robot averages 4.7 out of 5 from 124 ratings, while Tappy Crab averages 4.8 from 19 ratings.

### Do Stretch Robot or Tappy Crab have ads?

Stretch Robot shows ads; Tappy Crab does not.

### Which is updated more often, Stretch Robot or Tappy Crab?

Stretch Robot ships an update every 4 months, and Tappy Crab every 4 weeks. Most recently, Stretch Robot was updated on October 11, 2026 and Tappy Crab on October 10, 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.*