# Grow Room Calculator — Recommends ideal room specs

> Calculates ideal indoor grow room specifications for optimal cannabis cultivation. (iPhone/iPad app by Pierre Villanueva.)

- Source: https://appshunter.io/ios/app/grow-room-calculator/id1447971646 (this page in markdown: same URL + `.md`)
- Developer: [Pierre Villanueva](https://appshunter.io/developer/1447699657)
- Category: Medical
- Price: $1.99
- Rating: 4.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 17+
- Requires: iOS 11.0 · 7 MB
- Languages: English
- Released: 2018-12-31
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/grow-room-calculator/id1447971646/reviews.md

## What is Grow Room Calculator?

Grow Room Calculator calculates ideal grow room specs to produce the tightest, most resinous, potent indoor buds.  

Produces the Highest Yield. Recommendations based on the latest knowledge in indoor cannabis horticulture. 

Saves Time and Effort. Setup your grow tent right the first time and avoid mistakes.

Calculate Ideal Room Specs for 
- Light Requirements
- Light Ventilation
- Odor Control 
- Potential Air Conditioning Requirements
- Potential Dehumidification Requirements
- Lighting Amp Load

Supported Varieties
- Indica
- Indica-Sativa Hybrids
- Sativa
- Sativa-Indica Hybrids

Supported Lighting
- Fluorescent
- High Pressure Sodium (HPS)
- Metal Halide (MH)
- LED

Supported Units
- US
- Metric

Supported Voltages
- 120v
- 240v
- 220v

## Key features

- Calculate ideal room specs
- Light requirements
- Ventilation and odor control
- Climate control recommendations
- Supports multiple plant varieties
- Supports various lighting types
- US and Metric unit support

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/grow-room-calculator/id1447971646/reviews.md

### 3/5 — Can’t change voltage from 120 to 240v

*2020-03-18, version 0.4.1*

This app would be better if you can switch to 240v

**Developer response:** Hi Jclarkhvac,
Thanks for taking the time to review the app. I have incorporated 240v, and 210v volt options because of your feedback. Please update your app to see these changes. Best, Grow Room Calculator

## Frequently asked questions about Grow Room Calculator

### What is Grow Room Calculator used for?

Grow Room Calculator helps you determine the ideal environmental specifications for your indoor grow room. It provides recommendations for lighting, ventilation, odor control, and climate management to help you achieve the best possible yield and bud quality.

### What types of plants does Grow Room Calculator support?

Grow Room Calculator supports Indica, Sativa, and various Indica-Sativa and Sativa-Indica hybrid varieties. This allows growers to tailor recommendations to their specific plant needs.

### What lighting systems are compatible with Grow Room Calculator?

The app supports calculations for Fluorescent, High Pressure Sodium (HPS), Metal Halide (MH), and LED lighting systems. This broad compatibility ensures it can be used with most common indoor grow setups.

### Does Grow Room Calculator support both US and Metric units?

Yes, Grow Room Calculator supports both US and Metric measurement units. This flexibility allows growers from different regions to use the app with their preferred system.

### What voltages does Grow Room Calculator consider?

The app takes into account 120v, 240v, and 220v voltages when calculating lighting amp load and other electrical requirements for your grow room.

### How often is Grow Room Calculator updated?

The latest version, 0.5.1, was released on May 2, 2020. While updates may not be frequent, the core functionality remains relevant for grow room planning.

### What is the price of Grow Room Calculator?

Grow Room Calculator is a paid application priced at $1.99. This one-time purchase grants access to all its features for optimizing your grow room.

### What is the age rating for Grow Room Calculator?

Grow Room Calculator has an age rating of 17+. This is likely due to the nature of the content it pertains to within the medical cannabis cultivation context.

## Version history (last 1 release)

### 0.5.1 — 2020-05-02

-Add 240v, 220v options
-Add dark mode styling

## Apps similar to Grow Room Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [GrowDoc](https://appshunter.io/ios/app/growdoc/id1494454306) | 1.8 (9) | Free | Medical |
| [Ohio Marijuana](https://appshunter.io/ios/app/ohio-marijuana/id1459836758) | 5.0 (3) | Free | Medical |
| [KlickTrack](https://appshunter.io/ios/app/klicktrack/id1317621600) | — | Free | Medical |
| [WeedMatcher: Find Your Strain](https://appshunter.io/ios/app/weedmatcher-find-your-strain/id1487438470) | 4.8 (214) | Free | Medical |

## More apps by Pierre Villanueva

- [Gym Cruncher](https://appshunter.io/ios/app/gym-cruncher/id1412631809)

All apps by Pierre Villanueva: https://appshunter.io/developer/1447699657

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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 2026-06-10.*