# GrowLight — Horticultural Spectrum Calc

> Horticultural spectrum calculation and visualization tool. (iPhone/iPad app by Budmaster LED Ltd.)

- Source: https://appshunter.io/ios/app/growlight/id1451615693 (this page in markdown: same URL + `.md`)
- Developer: [Budmaster LED Ltd](https://appshunter.io/developer/1402486923)
- Category: Productivity, Reference
- Price: Free
- Rating: 1.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 35 MB
- Languages: English
- Released: 2019-02-06
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/growlight/id1451615693/reviews.md

## What is GrowLight?

Caclulate Yield photon flux and Yield photon flux density by accurately calculating spectral efficacy for your desired action spectra.

Create dynamic visual spectrum's to help aid your research projects or marketing campaigns.

Overlay one spectrum against another for illustration and analysis.

Calculate the effectiveness of a spectrum vs another spectrum.

Full list of horticultural spectrum's included.

Save and share spectrum images and x,y data for external use.

## Key features

- Calculate Yield Photon Flux
- Calculate Yield Photon Flux Density
- Create dynamic visual spectra
- Overlay and compare spectra
- Full list of horticultural spectra
- Save and share spectrum data

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/growlight/id1451615693/reviews.md

### 1/5 — Waste

*2020-05-13, version 1.5*

Does seem to do anything.

## Frequently asked questions about GrowLight

### What is GrowLight used for?

GrowLight is used to calculate spectral efficacy for horticultural applications, helping users understand and visualize the effectiveness of different light spectra for plant growth and research.

### Can I compare different light spectra with GrowLight?

Yes, GrowLight allows you to overlay one spectrum against another for direct illustration and analysis, helping you determine the effectiveness of one spectrum compared to another.

### Does GrowLight include pre-set horticultural spectra?

Yes, GrowLight comes with a full list of included horticultural spectra, providing a comprehensive resource for your calculations and visualizations.

### Can I export my spectrum data from GrowLight?

Yes, you can save and share spectrum images and x,y data for external use, making it easy to integrate your findings into reports or other projects.

### What devices is GrowLight compatible with?

GrowLight is available for iPhone, iPad, and iPod, allowing users to access its features across various Apple devices.

### How often is GrowLight updated?

The latest version of GrowLight was released on July 7, 2021. The app was originally released on February 6, 2019.

### What is the age rating for GrowLight?

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

### What are the user reviews for GrowLight?

GrowLight has received 2 ratings with an average of 1.0 stars, indicating a generally negative user sentiment based on available data.

## Version history (last 1 release)

### 3.3 — 2021-07-07

Major enhancements
You can now categorize your spectrums
Please back up any user spectrums before installation

## Apps similar to GrowLight

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [LandPKS](https://appshunter.io/ios/app/landpks/id1084892005) | 4.8 (5) | Free | Productivity |
| [Agri-Tech](https://appshunter.io/ios/app/agri-tech/id1491962254) | — | Free | Productivity |
| [PosiCharge ProCore](https://appshunter.io/ios/app/posicharge-procore/id1086160390) | 3.6 (5) | Free | Productivity |
| [Bluetooth: Headphones Finder](https://appshunter.io/ios/app/bluetooth-headphones-finder/id1628357194) | 3.6 (10) | Free | Productivity |
| [Rezilio Manager](https://appshunter.io/ios/app/rezilio-manager/id1621732964) | — | Free | Productivity |
| [DISH](https://appshunter.io/ios/app/dish/id1456263522) | — | Free | Productivity |

## More apps by Budmaster LED Ltd

- [Budbox](https://appshunter.io/ios/app/budbox/id1442609533)
- [Mills Nutrient Calculator](https://appshunter.io/ios/app/mills-nutrient-calculator/id1467729839)
- [Snoops Nutrient Calculator](https://appshunter.io/ios/app/snoops-nutrient-calculator/id1475253746)
- [AutoPot](https://appshunter.io/ios/app/autopot/id1475770911)
- [GrowRoom](https://appshunter.io/ios/app/growroom/id1480516971)

All apps by Budmaster LED Ltd: https://appshunter.io/developer/1402486923

---

*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 2026-06-10.*