# Biotic Plant Light Meter — Light meter for houseplants

> Light meter for houseplants (iPhone/iPad app by Biotic Instruments.)

- Source: https://appshunter.io/ios/app/biotic-plant-light-meter/id6795663857 (this page in markdown: same URL + `.md`)
- Developer: [Biotic Instruments](https://appshunter.io/developer/1847652359)
- Category: Lifestyle, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 25 MB
- Languages: American English
- Released: 2026-08-24
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/biotic-plant-light-meter/id6795663857/reviews.md

## What is Biotic Plant Light Meter?

"Bright, indirect light" means nothing until you can measure it.

Plant Light Meter turns your iPhone's camera into a horticultural light meter, so you can find out what a spot really gives, and whether the plant you want will grow there.

MEASURE ANY SPOT
Point the camera at the light and get a reading in foot-candles, PPFD, and DLI, the daily light total that decides whether a plant thrives or slowly declines. Readings come from the camera's exposure, the same physics a dedicated meter uses, calibrated per iPhone model.

CHECK A PLANT BEFORE YOU COMMIT
Pick a plant and see whether your spot suits it. When it doesn't, the app suggests plants that would do well there instead.

MAP A WHOLE ROOM
Scan your room and see daylight modelled across the floor: through your real windows, at your real latitude. No LiDAR? Tap the floor corners instead. Works on any iPhone.

SEE THE WHOLE YEAR
A south-facing window in June is a different room in December. The seasonal forecast shows how each spot changes month by month, so you can place a plant for the year rather than for today.

PUT PLANTS ON THE MAP
Drop a plant onto any spot and see how it would fare across the seasons — which months carry it, and which fall short.

Readings are estimates from your camera, not laboratory measurements. They're built for comparing one spot against another and matching plants to them, which is the question that actually matters.

Free. No account, no ads.

Made by Biotic Instruments.


## Version history (last 1 release)

### 1.0 — 2026-08-24

No release notes.

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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 2026-08-26.*