# Stretch and Squash vs Inside Earth

The clearest difference is rating: Inside Earth at 4.7 against Stretch and Squash's 1.8. Inside Earth also leads on update cadence (fortnightly vs every 11 months) and ratings volume (81 vs 16). Stretch and Squash's advantage is iOS requirement (8.0 vs 13.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Inside Earth holds the better App Store score, 4.7 against 1.8. That said, the two scores are not equally well evidenced: Inside Earth has 81 ratings behind it against 16, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Stretch and Squash ships an update every 11 months, Inside Earth fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Stretch and Squash | Inside Earth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (16 ratings)](https://appshunter.io/ios/app/stretch-and-squash/id1082052185/reviews) | **[4.7 (81 ratings)](https://appshunter.io/ios/app/inside-earth-crust-to-core/id1600729183/reviews)** |
| Number of ratings | 16 | **81** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 64 MB | 190 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Laser Labs](https://appshunter.io/developer/1076013854) | [Sebastian Andre](https://appshunter.io/developer/1131259796) |

## What reviewers say

### Stretch and Squash

[App page](https://appshunter.io/ios/app/stretch-and-squash/id1082052185)

Visualize the effects of gravitational waves on space-time. This educational app exaggerates the stretching and squashing of distances between objects as these cosmic ripples pass through.

**Highlights:** Gravitational wave visualization, Stretching and squashing effects, Exaggerated visual emphasis, Space-time ripple demonstration, Educational physics concepts

**Features:** macOS Compatibility

**In-app purchases:** none


### Inside Earth

[App page](https://appshunter.io/ios/app/inside-earth-crust-to-core/id1600729183)

Explore the Earth's interior by virtually peeling back its layers. Understand the composition of the crust, mantle, and core. Learn about tectonic plates, volcanism, and earthquakes.

**Highlights:** Interactive layer peeling, Tectonic plate visualization, Volcanism and earthquake explanation, Compositional learning, Geological process discovery

**In-app purchases:** none


## Frequently asked questions

### Is Stretch and Squash free?

Stretch and Squash is free to download, with no in-app purchases.

### Is Inside Earth free?

Inside Earth is free to download, with no in-app purchases.

### Which has better reviews, Stretch and Squash or Inside Earth?

Inside Earth is rated higher. Stretch and Squash averages 1.8 out of 5 from 16 ratings, while Inside Earth averages 4.7 from 81 ratings.

### Do Stretch and Squash or Inside Earth have ads?

Neither Stretch and Squash nor Inside Earth shows ads.

### Which is updated more often, Stretch and Squash or Inside Earth?

Stretch and Squash ships an update every 11 months, and Inside Earth fortnightly. Most recently, Stretch and Squash was updated on November 6, 2026 and Inside Earth on November 3, 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.*