# Powers of 10: Universe tour

> Educational app visualizing the scale of the universe from atoms to galaxies. (iPhone/iPad app by David Knothe.)

- Source: https://appshunter.io/ios/app/powers-of-10-universe-tour/id1627271773 (this page in markdown: same URL + `.md`)
- Developer: [David Knothe](https://appshunter.io/developer/1261512247)
- Category: Education
- Price: Free
- Rating: 3.86/5 from 7 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 15 MB
- Languages: English
- Released: 2022-06-02
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/powers-of-10-universe-tour/id1627271773/reviews.md

## What is Powers of 10?

The nature that we see is full of wonders and beauty. Not convinced? Look out of the window or in the mirror.
But it doesn't stop there. The universe is packed with so many more things that we cannot see in our daily life - protons, atoms, cells, distant stars, galaxies and much more.

But do you know how small an atom actually is, compared with us humans? Or how large the sun is, compared with the earth? And how many stars there are in the milky way?

Powers of 10 will take you on a short journey through all the scales of our universe and will give you a hint of our universe's incommensurable size, beauty and complexity. From attometers to billions of lightyears – on every scale there is something to see.

## Key features

- Journey through cosmic scales
- Visualize particle sizes
- Compare celestial body sizes
- Explore galaxies and stars
- Understand universe complexity

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/powers-of-10-universe-tour/id1627271773/reviews.md

### 5/5 — Me: :O

*2025-09-01*

OMG IT HAS STUFF I NEVER KNEW ABOUT

### 5/5 — Wow!

*2025-05-03*

This is such a great app!! And, thx for the Bible verses! You’re Christian too? So am I! I love God! It’s amazing that the universe is that big! 🙏🏽 I also loved that you mostly used emojis for the images! 😉

### 1/5 — Add more stuff

*2024-12-29*

I want more stuff

### 1/5 — What is what

*2024-11-26*

It just says stadium what stadium

### 1/5 — What is this

*2024-08-02*

I keep seeing the weird line on my screen

### 5/5 — Beyond universe!

*2024-07-15*

Could you add beyond universe (10^28 meters to 10^1000 meters) please?

### 5/5 — What A Nice App

*2024-04-10*

It lets you zoom out from a proton to the universe, what a nice app

### 5/5 — This is great

*2023-12-23*

Well, it makes you to the actual point

## Frequently asked questions about Powers of 10

### What is Powers of 10: Universe tour?

Powers of 10: Universe tour is an educational application designed to help users visualize and comprehend the vast scales of the universe, from subatomic particles to galaxies.

### What devices does Powers of 10: Universe tour support?

Powers of 10: Universe tour is available on iPhone, iPad, and iPod.

### What is the age rating for Powers of 10: Universe tour?

The app has an age rating of 4+, making it suitable for young learners and adults alike.

### How often is Powers of 10: Universe tour updated?

The app was last updated on June 3, 2022, with version 1.0.1. Further updates will depend on the developer's release schedule.

### What is the user rating for Powers of 10: Universe tour?

Powers of 10: Universe tour has a rating of 3.9 stars based on 7 user reviews.

### Does Powers of 10: Universe tour have ads?

No, Powers of 10: Universe tour does not contain advertisements.

### Can I purchase Powers of 10: Universe tour?

No, Powers of 10: Universe tour is available for free and does not require any purchase.

### What learning concepts does Powers of 10: Universe tour focus on?

The app focuses on understanding scale, size comparisons, and the vastness of the universe, from the microscopic to the cosmic.

## Version history (last 2 releases)

### 1.0.1 — 2022-06-03

Stop iPhone screen from turn off automatically when autoplaying.

### 1.0 — 2022-06-02

No release notes.

## Apps similar to Powers of 10

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Univerzoom 3D - Explore Scale](https://appshunter.io/ios/app/univerzoom-3d-explore-scale/id1552648156) | 4.8 (289) | $2.99 | Education |
| [Universe Size Comparison](https://appshunter.io/ios/app/universe-size-comparison/id1473946290) | 3.1 (29) | $1.99 | Education |
| [Univerzoom 2D Size Comparison](https://appshunter.io/ios/app/univerzoom-2d-size-comparison/id1598332779) | 4.6 (63) | Free | Education |
| [Stars Units Sizes Objects](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571) | 4.2 (5) | Free | Education |
| [Planet Fun](https://appshunter.io/ios/app/planet-fun/id1525941640) | 4.8 (8) | Free | Education |
| [PlanetenSpielundApp2b](https://appshunter.io/ios/app/planetenspielundapp2b/id1494749871) | 3.5 (2) | Free | Education |

## More apps by David Knothe

- [Superflow!](https://appshunter.io/ios/app/superflow/id1314601642)
- [Dump Trump for Messages](https://appshunter.io/ios/app/dump-trump-for-messages/id1399916859)
- [MultiCircle](https://appshunter.io/ios/app/multicircle/id6449422811)
- [21 Tage des Gebets](https://appshunter.io/ios/app/21-tage-des-gebets/id6476510671)
- [Alive Restart](https://appshunter.io/ios/app/alive-restart/id6478058866)

All apps by David Knothe: https://appshunter.io/developer/1261512247

## Related topics

[scale of the universe](https://appshunter.io/ios/topics/scale-of-the-universe) · [wonders of the universe](https://appshunter.io/ios/topics/wonders-of-the-universe) · [size comparison](https://appshunter.io/ios/topics/size-comparison) · [universe splitter](https://appshunter.io/ios/topics/universe-splitter) · [universe size comparison](https://appshunter.io/ios/topics/universe-size-comparison)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*