# GrowRoom — Grow Room PPFD Calclator > Calculate grow room light levels (PPFD, YPFD) for optimal plant yield and energy efficiency. (iPhone/iPad app by Budmaster LED Ltd.) - Source: https://appshunter.io/ios/app/growroom/id1480516971 (this page in markdown: same URL + `.md`) - Developer: [Budmaster LED Ltd](https://appshunter.io/developer/1402486923) - Category: Utilities, Productivity - Price: Free - Rating: 1.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 11.0 · 44 MB - Languages: English - Released: 2019-09-19 - Data updated: 2026-06-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/growroom/id1480516971/reviews.md ## What is GrowRoom? Having the right light and the right amount of light in your grow room is crucial to obtaining the best yields at the lowest price. This is where the Y factor comes in, YPF and YPFD are the counterparts of PPF and PPFD, the Y stands for 'Yield'. YPF would for example show the amount of light that is used by your plants compared to PPF that shows the amount of light outputted by your lamp. Our app helps you accurately calculate all of these values and more to help you achieve the perfectly balanced growing environment. You can use this app to accurately plan the different phases of your grow using the slider in conjunction with the lamps power level to allow for exactly the right amount of light in your area for your current grow period. Compare one lamp against another to see which is best for your room and plant type. You can use our tool to help plan your upcoming rooms. Using the tools provided you can achieve huge energy savings in your grow rooms helping your pocket and the environment. If you have photo metric reports including .ies files for other horticultural lamps we will be happy to include the data in the next update. ## Key features - Calculate PPFD and YPFD values - Compare different grow lamps - Plan grow room lighting - Adjust light for growth phases - Estimate energy savings ## Frequently asked questions about GrowRoom ### What is GrowRoom used for? GrowRoom is used to accurately calculate light levels like PPFD and YPFD in your grow room. It helps you compare lamps and plan lighting for different growth phases to optimize plant yields and potentially save energy. ### How does GrowRoom help with energy savings? By accurately calculating the precise amount of light needed for your plants at different stages, GrowRoom helps you avoid over-lighting. This can lead to significant energy savings in your grow rooms, benefiting both your budget and the environment. ### Can GrowRoom compare different lamps? Yes, GrowRoom allows you to compare one lamp against another. This feature helps you determine which lamp is best suited for your specific room size and plant type, ensuring optimal light distribution. ### What kind of light metrics does GrowRoom calculate? GrowRoom calculates metrics such as PPFD (Photosynthetic Photon Flux Density) and YPFD (Yield Photon Flux Density). It also helps in understanding the relationship between light output from lamps (PPF) and light utilized by plants (YPF). ### Is GrowRoom available on Android? Based on the provided data, GrowRoom is available on iPhone, iPad, and iPod. Information regarding Android compatibility is not specified. ### How often is GrowRoom updated? The latest version of GrowRoom is 3.2, and it was last updated on July 16, 2021. The developer has indicated a willingness to include photometric data for other horticultural lamps in future updates. ### What is the rating for GrowRoom? GrowRoom has a rating of 1.0 stars from 1 rating. This indicates a very low user satisfaction based on the available data. ### Does GrowRoom have ads? The provided data does not specify whether GrowRoom contains advertisements. The 'hasAds' field is null. ## Version history (last 1 release) ### 3.2 — 2021-07-16 General Enhancements ## Apps similar to GrowRoom | App | Rating | Price | Category | | --- | --- | --- | --- | | [Track Monitoring](https://appshunter.io/ios/app/track-monitoring/id1640491476) | — | Free | Utilities | | [Dialogue: Your Chats Live On](https://appshunter.io/ios/app/dialogue-your-chats-live-on/id1550093409) | — | Free | Utilities | | [Grow with Jane - Grow journal](https://appshunter.io/ios/app/grow-with-jane-grow-journal/id1467850558) | 4.1 (340) | Free | Utilities | | [NSP32 nanoLambda Spectrometer](https://appshunter.io/ios/app/nsp32-nanolambda-spectrometer/id1480194984) | — | Free | Utilities | | [Light Meter LM-3000](https://appshunter.io/ios/app/light-meter-lm-3000/id1554264761) | 4.5 (2,424) | Free | Utilities | | [Bioline App-Biocontrol Advisor](https://appshunter.io/ios/app/bioline-app-biocontrol-advisor/id1465879769) | 1.7 (6) | Free | Utilities | ## More apps by Budmaster LED Ltd - [Budbox](https://appshunter.io/ios/app/budbox/id1442609533) - [GrowLight](https://appshunter.io/ios/app/growlight/id1451615693) - [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) 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 2026-06-24.*