---
title: "DifCal - Reviews, Revenue and Downloads in Ecuador | Apple App Store"
description: "Calculate diffraction angles for a particular crystal with a defined orientation matrix.  New crystals can be added to the database.  Energy/wavelength can be changed. Currently knows about 4-circle, "
---

# DifCal — Ecuador

![DifCal App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/5f/1b/ad/5f1badbb-45e9-7d06-9dd2-42392c5adbcd/AppIcon-0-0-1x_U007emarketing-0-8-0-0-85-220.png/434x0w.png)

**Developer:** [Sean Brennan](https://apptail.io/developer/sean-brennan-DMud)
**Category:** Education
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.fairviewassociates.DifCal
**Store:** Apple App Store
**Country:** Ecuador
**Version:** 2.42 (released 2025-12-13)
**Original Release:** 2014-09-28
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/ec/app/app/id898026479)
**AppTail Page:** [https://apptail.io/app/difcal-gEbp/ecuador](https://apptail.io/app/difcal-gEbp/ecuador)

## DifCal Description
Calculate diffraction angles for a particular crystal with a defined orientation matrix.  New crystals can be added to the database.  Energy/wavelength can be changed. Currently knows about 4-circle, Z-Axis and Theta-Theta diffractometers as well as 2-circle, powder and amorphous diffraction modes.  Current crystals include silicon, diamond, GaAs, Muscovite (mica), graphite, many 3-5 and 2-6 crystals.  There are separate screens for setting the crystal (or creating a new one), defining the orientation matrix, defining the diffractometer mode, and calculating either angles, given h,k,l, or hkl given a set of angles.  With the larger screen of the iPad all the controls are visible on a single page.

## DifCal Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/c5/6c/85/c56c858a-23e8-78ae-e0be-dcf5b9d1852e/pr_source.png/640x960.png)







## DifCal Available In
- [France](https://apptail.io/app/difcal-gEbp/france)
- [United States](https://apptail.io/app/difcal-gEbp/united-states)
- [Spain](https://apptail.io/app/difcal-gEbp/spain)
- [Ecuador](https://apptail.io/app/difcal-gEbp/ecuador)
- [Mexico](https://apptail.io/app/difcal-gEbp/mexico)
- [Pakistan](https://apptail.io/app/difcal-gEbp/pakistan)
- [Egypt](https://apptail.io/app/difcal-gEbp/egypt)

---

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