# EELS Atlas

> EELS edge energy and shape reference for all stable elements. (iPhone/iPad app by Gatan, Inc..)

- Source: https://appshunter.io/ios/app/eels-atlas/id381594211 (this page in markdown: same URL + `.md`)
- Developer: [Gatan, Inc.](https://appshunter.io/developer/381594214)
- Category: Reference, Utilities
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.4 · 1 MB
- Languages: American English
- Released: 2010-07-31
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/eels-atlas/id381594211/reviews.md

## What is EELS Atlas?

Gatan Table of EELS Edge Energies – The classic Gatan EELS slide rule is now available as an iPhone application. Encoded in this application are the edge onset energies and general edge shapes for all stable elements in the periodic table. The data can be searched or browsed by element or by energy in an easy to use interface.

## Key features

- EELS edge onset energies
- General edge shapes
- All stable elements
- Search by element
- Browse by energy
- Easy-to-use interface

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/eels-atlas/id381594211/reviews.md

### 5/5 — Looks great on my iPhone 6

*2016-09-26, version 1.2*

I like this update because it fills the whole screen on my iPhone 6.  Would like to have a full screen iPad version.

### 5/5 — Great Update

*2016-09-09, version 1.2*

Works great, thanks for the bug fixes!

### 5/5 — Simple yet powerful

*2016-08-30, version 1.1.11*

Easy way to learn about elements. Good job

### 5/5 — Very very good

*2011-02-16, version 1.0.03*

Sanghyun

### 4/5 — Gatan EELS

*2010-11-19, version 0*

Very helpful just wish it included everything in the books. Also which you could find oxides as well as pure elements. Otherwise good.

## Frequently asked questions about EELS Atlas

### What is EELS Atlas?

EELS Atlas is a mobile application that provides a reference for electron energy loss spectroscopy (EELS) edge onset energies and general edge shapes for all stable elements in the periodic table.

### What information does EELS Atlas provide?

It includes data on edge onset energies and general edge shapes for every stable element, acting as a digital version of the classic Gatan EELS slide rule.

### How can I find information in EELS Atlas?

You can search for specific elements or browse the data by element name or by energy value using its user-friendly interface.

### Is EELS Atlas available on Android devices?

No, EELS Atlas is currently only supported on iPhone and iPod devices.

### How often is EELS Atlas updated?

The app was last updated on August 31, 2016, with version 1.2. It is a reference tool and may not require frequent updates unless significant new data becomes available.

### What is the age rating for EELS Atlas?

EELS Atlas has an age rating of 4+, making it suitable for a wide range of users.

### Does EELS Atlas have ads?

No, EELS Atlas does not contain advertisements.

### What is the user feedback on EELS Atlas?

The app has received a perfect 5.0-star rating from 2 reviews, indicating a very positive user reception.

## Version history (last 5 releases)

### 1.2 — 2016-08-31

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

Minor UI improvements. Updated Contact and Gatan links.

### 1.1.11 — 2016-08-26

This version has been updated to support iOS8. Features include a modernized UI and a palette to match updated company branding.

### 1.0.05 — 2011-05-12

This version provides better support for low memory conditions.

### 1.0.03 — 2010-08-14

No longer copies database to phone.

### 1.0.02 — 2010-07-30

Added ability to view search results sorted by edge energy.

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## Related topics

[eels atlas](https://appshunter.io/ios/topics/eels-atlas)

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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.*