# Optogenetics Pro vs TRG VoltTrack

The clearest difference is update cadence: TRG VoltTrack at every 3 months against Optogenetics Pro's every 45 months. TRG VoltTrack also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Optogenetics Pro ships an update every 45 months, TRG VoltTrack every 3 months. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Optogenetics Pro | TRG VoltTrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/optogenetics-pro/id641358148/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 45 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 365 MB | 49 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Popneuron Ltd.](https://appshunter.io/developer/569968720) | [俊华 邹](https://appshunter.io/developer/1276442287) |

## What reviewers say

### Optogenetics Pro

[App page](https://appshunter.io/ios/app/optogenetics-pro/id641358148)

This tool helps researchers calculate the necessary optical power for optogenetics experiments involving light delivery to deep brain areas. It considers brain region scattering properties, opsin type, and optical fiber characteristics to estimate excitation depth as a function of optical power.

**Highlights:** Calculate required optical power, Estimate opsin excitation depth, Model light scattering in brain tissue, Input brain region properties, Input opsin properties, Input optical fiber properties

**Features:** macOS Compatibility

**In-app purchases:** none


### TRG VoltTrack

[App page](https://appshunter.io/ios/app/trg-volttrack/id6738936773)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Optogenetics Pro free?

Optogenetics Pro is free to download, with no in-app purchases.

### Is TRG VoltTrack free?

TRG VoltTrack is free to download, with no in-app purchases.

### Do Optogenetics Pro or TRG VoltTrack have ads?

Neither Optogenetics Pro nor TRG VoltTrack shows ads.

### Which is updated more often, Optogenetics Pro or TRG VoltTrack?

Optogenetics Pro ships an update every 45 months, and TRG VoltTrack every 3 months. Most recently, Optogenetics Pro was updated on October 7, 2026 and TRG VoltTrack on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*