# Building Atoms, Ions, and Isotopes Free

> Educational app for building atoms, ions, and isotopes with interactive periodic table. (iPhone/iPad app by Carolina Biological Supply.)

- Source: https://appshunter.io/ios/app/building-atoms-ions-and-isotopes-free/id437002429 (this page in markdown: same URL + `.md`)
- Developer: [Carolina Biological Supply](https://appshunter.io/developer/413708533)
- Category: Education, Reference
- Price: Free with in-app purchases
- Rating: 1.90/5 from 7 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.0 · 10 MB
- Languages: American English
- Released: 2011-05-17
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/building-atoms-ions-and-isotopes-free/id437002429/reviews.md

## What is Building Atoms, Ions, and Isotopes Free?

With the Building Atoms, Ions, and Isotopes app, explore the composition of the elements. Build atoms, ions, and isotopes by selecting appropriate numbers of protons, neutrons, and electrons. For reference, this app also includes atomic theory information and a periodic table that is interactive in the iPad version.

## Key features

- Build atoms, ions, and isotopes
- Select protons, neutrons, and electrons
- Atomic theory information
- Interactive periodic table (iPad)
- Element composition exploration

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Atomic Elements Premium Content | $1.99 | one-time |


## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/building-atoms-ions-and-isotopes-free/id437002429/reviews.md

### 1/5 — Don’t bother

*2021-11-13*

It’s doesn’t work at all

### 1/5 — Just terrible

*2019-04-21*

I try to put protons + neutrons +electrons but it just doesn’t work!!!!!!😡😡😡

### 3/5 — It’s hard and it’s the only game with ions and isotopes

*2019-04-10*

It’s hard to drag and drop and not only that but the fact that you HAVE TOO SOEND MONEY just for to get to be able to make your own isotopes and ions is just annoying and this is the only game where it features ions and isotope abut you have to spend money to build isotope sand ions

### 1/5 — DOES NOT WORK

*2017-09-19*

this app doesn't even work, you can't drag and drop anything this is rip off and so is the paid version. Find another app!

### 1/5 — Unoptimised and pointless

*2017-05-16*

Bad UI means is very difficult to select elements.
 Pop ups don't fit in iPhone 7 screen properly.
Clunky and not very educational.

### 1/5 — Doesn't work

*2016-08-28*

Can't drag protons, electrons, or neutrons to create the atom.

### 5/5 — Yea

*2013-07-10, version 1.0*

So good

### 4/5 — Pretty cool

*2013-06-28, version 1.0*

I like this app. I need practice building atoms so it'll really help. 

The only problem that I have is that I can't get the trash can to work, but other than that it seems to be perfect for what I need it for. 

I also kinda wish that there was a way to see info on what you're trying to build. Like gold could be: "Considered a precious metal. Used in electronics." Stuff like that. Just to make it more interesting, y'know?

### 1/5 — App stinks

*2013-03-30*

If you want a good one, get the app nuclear. But this is stupid and a waste of 7.1 megabytes.

### 1/5 — Not right

*2012-10-25*

They mixed up the neutrons with the electrons

## Frequently asked questions about Building Atoms, Ions, and Isotopes Free

### What is the main purpose of Building Atoms, Ions, and Isotopes Free?

This app allows users to explore the composition of elements by constructing atoms, ions, and isotopes. It provides a hands-on way to learn about protons, neutrons, and electrons.

### What kind of learning content does Building Atoms, Ions, and Isotopes Free offer?

Beyond building atomic structures, the app includes atomic theory information. For iPad users, it features an interactive periodic table to further enhance learning.

### What devices is Building Atoms, Ions, and Isotopes Free compatible with?

Building Atoms, Ions, and Isotopes Free is available for iPhone and iPod devices. The interactive periodic table feature is specifically mentioned for iPad.

### How often is Building Atoms, Ions, and Isotopes Free updated?

The latest version of Building Atoms, Ions, and Isotopes Free is 3.1, which was last updated on August 9, 2016. This indicates infrequent updates.

### What is the user rating for Building Atoms, Ions, and Isotopes Free?

Building Atoms, Ions, and Isotopes Free has a rating of 1.9 stars based on 7 ratings. This suggests a generally negative user sentiment.

### Is Building Atoms, Ions, and Isotopes Free suitable for young children?

The app has an age rating of 4+, making it accessible for younger learners. However, the low user rating might indicate potential usability issues for any age group.

### Does Building Atoms, Ions, and Isotopes Free have ads?

Based on the provided data, Building Atoms, Ions, and Isotopes Free does not have advertisements. It is a free application.

### Are there any in-app purchases in Building Atoms, Ions, and Isotopes Free?

Yes, the app is listed as having in-app purchases. However, the specific nature or cost of these purchases is not detailed in the provided information.

## Version history (last 3 releases)

### 3.1 — 2016-08-09

This app has been updated by Apple to display the Apple Watch app icon.

**Added option to purchase all premium app content via in-app purchase

### 3.0 — 2013-10-18

**iOS 7 Bug Fixes and Compatibility

### 1.0 — 2011-05-16

No release notes.

## Apps similar to Building Atoms, Ions, and Isotopes Free

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Isotope Browser](https://appshunter.io/ios/app/isotope-browser/id943890538) | 4.8 (25) | Free | Education |
| [SciQuiz - Science Learning](https://appshunter.io/ios/app/sciquiz-science-learning/id1440078272) | 4.6 (53) | Free | Education |
| [Chemy: Chemistry Companion](https://appshunter.io/ios/app/chemy-chemistry-companion/id1542390153) | 5.0 (6) | Free | Education |
| [Periodic Table of Elements+](https://appshunter.io/ios/app/periodic-table-of-elements-plus/id6447423433) | 4.5 (30) | Free | Education |
| [Molecules](https://appshunter.io/ios/app/molecules/id284943090) | 3.6 (166) | Free | Education |
| [Molecular Constructor](https://appshunter.io/ios/app/molecular-constructor/id1299401504) | 3.9 (52) | Free | Education |

## More apps by Carolina Biological Supply

- [Owl Pellet Activities](https://appshunter.io/ios/app/owl-pellet-activities/id413713201)
- [Owl Pellet Activities HD](https://appshunter.io/ios/app/owl-pellet-activities-hd/id413714263)
- [Chemistry Formula Practice](https://appshunter.io/ios/app/chemistry-formula-practice/id422957082)
- [Chemistry Formula Practice Free](https://appshunter.io/ios/app/chemistry-formula-practice-free/id422958981)
- [Building Atoms and Isotopes](https://appshunter.io/ios/app/building-atoms-and-isotopes/id436996679)
- [Building Atoms, Ions, and Isotopes HD](https://appshunter.io/ios/app/building-atoms-ions-and-isotopes-hd/id436997933)

All apps by Carolina Biological Supply: https://appshunter.io/developer/413708533

## Related topics

[notago atomotive](https://appshunter.io/ios/topics/notago-atomotive)

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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 2026-06-05.*