# The Scale of the Universe 2 — user reviews

> 77 indexed App Store user reviews of The Scale of the Universe 2 by Michael Huang, rated 4.63/5 from 134 ratings.

- Source: https://appshunter.io/ios/app/the-scale-of-the-universe-2/id1062423259/reviews
- App overview in markdown: https://appshunter.io/ios/app/the-scale-of-the-universe-2/id1062423259.md
- Rating breakdown: 5★ 109 · 4★ 12 · 3★ 7 · 2★ 0 · 1★ 6

## What do users think of The Scale of the Universe 2?

Overall sentiment: positive

**Pros**

- 🤩 Mind-blowing visuals
- 💡 Educational and informative
- 👍 Easy to use interface
- ✨ Fascinating scale comparisons
- 💰 Great value for money
- 👨‍👩‍👧‍👦 Good for kids and parents
- 🌌 Inspires awe and wonder
- 💯 Well-done app
- 🚀 Smooth interaction
- 🧠 Stimulates curiosity
- 🤩 Jaw-dropping presentations
- 👨‍🔬 Great for science enthusiasts

**Cons**

- 🐛 Inaccurate scientific data
- ✂️ Cut-off text descriptions
- 🔊 Unremovable sound/music
- 📱 Poor large screen support
- ⏳ Outdated information
- 🤏 Lacks some objects/details
- 🖼️ Some graphics could be better

**Commonly reported bugs**

- App screen full, cannot close
- Text descriptions cut off mid-sentence
- Some information is outdated
- Inaccurate sizes for certain objects
- Scale not correct for iPhone 7
- Missing descriptions after line 9
- Typo in light day definition

**Most requested features**

- Add more objects
- Update scientific data
- Fix cut-off text descriptions
- Add sound/music toggle
- Improve large screen support
- Add newer discoveries (e.g., Lanikea supercluster)
- Include more objects on the smaller side (e.g., atoms, quarks)
- Add Chinese (traditional) translation
- Add Hubble deep field
- Include coral polyp size
- Add animations (e.g., wavelengths)
- Add settings for sound off
- Add more obscure objects in favor of better graphics
- Re-check size of largest virus
- Add Baryon Oscillation Spectroscopic Survey (BOSS) Great Wall
- Add settings to turn volume off

## Newest reviews (15 of 77)

### 4/5 — Needs an update…

*2022-07-14, version 1.0*

Your science is dated. Please re-check size of largest virus…

### 4/5 — Nice app

*2021-04-28, version 1.0*

Missing the Baryon Oscillation Spectroscopic Survey (BOSS) Great Wall.

### 4/5 — Great App, But I Feel That It Needs More

*2020-07-14*

Being somebody who loves physics and science overall, I really enjoy engaging with this application. Could the app be updated though? Are there other objects and ideas that can be added? Can there be more accurate measurements according to comparable objects? My main interest regarding the objects in the app are the atoms, electrons, protons, quarks, neutrinos, etc. Can more be added? I would love to see this app continuously be updated.

### 5/5 — Amazing

*2020-04-15*

Thx cary and Micheal, i know this is an old project, but its fun. I wish you luck on bfb.

### 5/5 — One problem

*2020-03-16*

When the text is too long it just cuts off.

### 5/5 — This is just great yay🙂🙂🙂

*2020-02-13*

Play this game you can see how big things are and little just see the biggest and tiniest things EVER!

### 4/5 — Uhmm not sure what I’m supposed to write in here

*2019-10-15*

Awesome app, I like how it is easy to relate sizes. Very nice and visual; however, only one downside it does properly support large screens like iPhone X etc etc. if devs can increase the size of the screen so it will fit bigger models, this app should deserve 5 stars.

### 4/5 — One tiny flaw

*2019-10-13*

This is Great Would recommend
But the website is 1 power less than this so it hard to tell But overall its great

### 5/5 — Very cool!

*2019-08-29*

I thought this app was awesome and easy to use also you learn a lot...it’s very cool, I recommend it!

### 5/5 — Superb

*2019-05-17*

This is such a well done app. Simple and unique interaction, and I learned probably 5 new things in the first couple minutes of using it. Beautiful work.

### 5/5 — A real jaw-dropper!

*2019-05-09, version 1.0*

Even though I’m aware of the scales, this app presents them so well that it made my jaw drop!

### 5/5 — Very Good

*2019-02-26*

Worth every penny of the £0.99 I paid.

### 5/5 — G is for George

*2019-02-02, version 1.0*

Lol u added Minecraft

### 5/5 — Educational and Mind-Blowing

*2019-02-02, version 1.0*

Wish I had this app when I was a kid. Amazing! Worth every penny to learn just how vastly small AND big I am in the universe!!!

### 5/5 — Great so far

*2019-01-26*

Can you add settings to turn the volume off? I would love to have headphones on and play music while using this

## Most critical reviews (10 lowest-rated)

### 1/5 — Can't control iPhone.

*2024-05-02*

When I open this app the screen is completely full with the app. I cannot swipe up or any direction to close this app. I had to restart my iPhone in order to close this app. This is the only app I have ever experienced this problem with.

### 1/5 — Wrong sizes!

*2018-05-05, version 1.0*

Well... the reason you are wrong is that
you rounded the moon and planet diameters up,
that Sirius B is actually smaller than Earth,
You forgot to put in Kepler-22b, the fact that
HD 100456 b is the largest planet, the Sun is 
actually 1,391,015 km, VY Canis Majoris is 
actually 1,970,000 km, and UY Scuti is the
largest star known at 2,370,000 km.

### 1/5 — No setting

*2017-05-22*

It is shameful that no setting to stop the annoying music

### 1/5 — Not Impressed

*2016-03-28, version 1.0*

I think the title says it all

### 3/5 — Good

*2021-07-06*

Even though it’s a great app. I rate it 3 stars because of a few errors with the description of a few objects, some of the words are cut off from the end. Also, some of the information is pretty old, maybe even older than the app like the largest star. If all of this is updated, it would be absolutely perfect.

### 3/5 — Cool for Visuals, Terrible for Information

*2021-03-26*

There are some really fantastic visuals for size/scale reference but the information provided for each object is so minimal it’s pathetic. Also, they should have skipped some of the more obscure objects in favor of better graphics.

### 3/5 — Fascinating, but flawed

*2020-02-05*

I tried to find support to contact the developer but there is no option for that. So I’m left to write this review. I love the information of this app but some of the descriptions are cut off. When you tap on an object/planet/etc. there is a short tidbit of info. Most of the time that info is complete. But there are many items where, for whatever reason, the information just stops, even leaving incomplete words, making it obvious there was more there.

### 3/5 — Uh, actually VY Canis Majoris is not the biggest star.

*2017-09-29*

VY Canis Majoris is not the largest star, it was the previous record holder, surpassed by UY Scuti, do your research, and yes, if you google it, it says VY Canis Majoris, but read the text, it was saying that VY Canis Majoris was a precious record holder and that’s why it says it the biggest up at the top, it’s really not the biggest. UY Scuti is the biggest. You need to fix this in your app

### 3/5 — Need update

*2017-07-23, version 1.0*

Good app but the scale is not correct for iPhone 7. Last time this was updated was 2015. Please update it

### 4/5 — Love it

*2022-08-06, version 1.0*

Love it but can't turn the sound off!

## Most praised reviews (10 highest-rated)

### 5/5 — Needs updates

*2024-07-14*

Could you add more objects to be a better app for me?

### 5/5 — Amazing app

*2023-08-29*

its a great app i didnt even know we actually lived in the second biggest object in the universe٫ Pisces-Cetus Supercluster Complex٫until now

### 5/5 — Yoylecake!

*2023-04-29*

Very good because I love space and bfdi so YOYLECaKE!

### 5/5 — Best 99 cents I’ve ever spent!!!

*2022-04-16, version 1.0*

This is a great app.

### 5/5 — 🤩🤩🤩🤩🤩

*2021-08-28, version 1.0*

It’s stupid and amazing and I can’t get enough of it!

### 5/5 — Universal!

*2021-07-19*

I loved that your 2008 channel hit 1,000,000 subscribers and the solar system!

### 5/5 — Greatness!

*2021-06-19, version 1.0*

I love size comparisons! But as a app? Oh my gosh wow :0 This is great!

### 5/5 — Great iPad app.

*2021-02-12, version 1.0*

Kids love it! hope developer updates for newer devices like the air 4 so it fills whole screen 👍

### 5/5 — Michaul haung

*2020-05-21, version 1.0*

I know that you are the creator of bfdi and It is my favorite show on YouTube I do not think that anyone alse figured it out

### 5/5 — Best app ever

*2020-04-25, version 1.0*

One word describes this app:amazing thanks for sharing your knowledge please read the devs please

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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 2026-06-10.*
