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Best Growing Plants Light Apps

247+ iOS apps curated and reviewed

4.0 avg rating
19 free apps
Updated September 2026

Out of 247+ growing plants light apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Growing Plants Light Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Photone - Grow Light MeterPhotone - Grow Light MeterFree4.6★ (4.9K)NoYesSep 2026
2PPFD METER - Grow Light MeterPPFD METER - Grow Light MeterFree4.6★ (118)YesYesSep 2026
3Grow Calc: Plant Light MeterGrow Calc: Plant Light MeterFree—NoNoAug 2026
4Plant Light MeterPlant Light Meter$2.994.6★ (1.1K)NoNoSep 2026
5Bask Light MeterBask Light MeterFree3.8★ (9)NoNoSep 2026
6PlantLight - Light for PlantsPlantLight - Light for PlantsFree—NoYesJun 2026
7LumenLeaf: PPFD Grow LightLumenLeaf: PPFD Grow LightFree—NoNoMay 2026
8Plant Light Meter: Lux & PPFDPlant Light Meter: Lux & PPFDFree1.7★ (11)YesYesSep 2026

Top Picks for Growing Plants Light

Photone - Grow Light Meter#1

Photone - Grow Light Meter by Lightray Innovation GmbH

Perfectly light your plants!
Editor's Choice
🔧 Utilities
4.6😐(4.9K ratings)
FreeIn-App Purchases
Photone - Grow Light Meter screenshot 1
Photone - Grow Light Meter screenshot 2
Photone - Grow Light Meter screenshot 3
Photone - Grow Light Meter screenshot 4
Photone - Grow Light Meter screenshot 5
Photone - Grow Light Meter screenshot 6

This app acts as a professional-grade light meter for plants, measuring PAR, PPFD, DLI, and more using your device's camera. It helps optimize plant lighting by providing accurate readings and in-app guides, with optional advanced features available through purchase.

What We Love

  • 🚀 Accurate readings
  • 💡 Helpful for growing plants
  • 👍 Easy to use
  • 🚀 Saves money compared to expensive meters
  • 👍 Useful for adjusting lighting

Room to Improve

  • 🐛 Inconsistent readings
  • 💰 Expensive in-app purchases
  • 🔒 Requires additional equipment (diffuser) to work properly
  • 🐛 Readings not accurate without calibration
  • 🔒 Limited functionality in free version

More Growing Plants Light apps to explore

FAQ about Growing Plants Light

What are the best growing plants light apps for iPhone?
Photone - Grow Light Meter tops our growing plants light apps ranking as of September 2026, with a 4.6-star average from 4.9K App Store ratings, and it's free to download.
Yes — 19 of the top growing plants light apps we rank are free to download, including Photone - Grow Light Meter and PPFD METER - Grow Light Meter.
Photone - Grow Light Meter has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 247+ growing plants light apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Photone is a mobile application that functions as a highly accurate light meter for plants. It uses your device's camera to measure various light metrics such as PAR, PPFD, DLI, lux, foot-candles, and color temperature (kelvin). This data helps users understand and optimize the lighting conditions for their plants.
Key features include industry-leading accuracy comparable to professional PAR sensors, pre-calibration for your specific device, and excellent low light sensitivity. It also offers in-app guides, light source selection for different grow lights, and a hands-free 'read aloud' function. Some advanced features like Extended PAR and underwater measurement modes require an in-app purchase.