# Optogenetics

> Optogenetics (iPhone/iPad app by Popneuron Ltd..)

- Source: https://appshunter.io/ios/app/optogenetics/id570438151 (this page in markdown: same URL + `.md`)
- Developer: [Popneuron Ltd.](https://appshunter.io/developer/569968720)
- Category: Utilities, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 365 MB
- Languages: English
- Released: 2012-11-03
- Data updated: 2026-05-22
- User reviews in markdown: https://appshunter.io/ios/app/optogenetics/id570438151/reviews.md

## What is Optogenetics?

Optogenetics is a tool which aids an investigator in calculating the required optical power for a given in-vivo experiment involving optogenetics or any other experimental approach that includes light delivery to deep brain areas via optical fibers. Different brain areas have different optical properties, which determine how light scatters and distributes, once it exits the optical fiber. To estimate the amount of light required for a given experimental design, knowledge about the specific scattering properties of the brain region of choice, the specific opsin to be used, and the properties of the optical fiber are required. Once a user inputs these parameters into the APP, it calculates the maximal depth at which excitation of the opsin can be expected. The penetration depth is plotted as a function of optical power (mW), such that a user can see how light scatters in the brain tissue under the specific circumstances. 

For the scientific basis of this calculator, please see Al-Juboori, Dondzillo, Stubblefield, Felsen, Lei, and Klug: Light scattering properties vary across different regions of the adult mouse brain, PlosONE, e67626(8) 2013.

For additional information, please see www.optogeneticsapp.com.

The pro and regular versions of the app are identical.


## Version history (last 5 releases)

### 5.0 — 2026-05-20

The interface has been rewritten using the latest iOS API to enhance the user experience.

### 4.1 — 2025-11-16

Bug fix and logo change.

### 4.0 — 2025-10-05

The app’s interface was redesigned with a modern aesthetic to enhance user experience.

### 3.0 — 2022-03-09

The Optogenetics App has been updated to compile with all the latest iOS requirements.

### 2.3 — 2018-03-21

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

Update to be compatible with iOS 9.

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## More apps by Popneuron Ltd.

- [Optogenetics Pro](https://appshunter.io/ios/app/optogenetics-pro/id641358148)
- [StereoAim](https://appshunter.io/ios/app/stereoaim/id6745112329)

All apps by Popneuron Ltd.: https://appshunter.io/developer/569968720

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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 2026-05-22.*