Best Par Meter Apps

249+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated November 2026

If you already know Photone, this is the deeper bench. 249+ par meter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of November 2026.

Compare top Par Meter Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Photone - Grow Light MeterPhotone - Grow Light MeterFree4.6★ (5K)NoYesNov 2026
2PPFD METER - Grow Light MeterPPFD METER - Grow Light MeterFree4.6★ (131)YesYesNov 2026
3VIVOSUNVIVOSUNFree4.7★ (8.7K)NoNoNov 2026
4Par Meter : PPFD MonitorPar Meter : PPFD MonitorFree2.5★ (2)NoYesOct 2026
5Light Meter LM-3000Light Meter LM-3000Free4.5★ (2.6K)NoYesNov 2026
6LUX Meter - Light MeterLUX Meter - Light MeterFree4.4★ (13)NoNoNov 2026
7DROK MeterDROK MeterFree—NoNoMay 2026
8In. Licht pro-Lighting MeterIn. Licht pro-Lighting MeterFree—NoNoMay 2026

Top Picks for Par Meter

Photone - Grow Light Meter#1

Photone - Grow Light Meter by Lightray Innovation GmbH

Measure plant light: PAR, PPFD
Editor's Choice
🔧 Utilities
4.6😐(5K 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
PPFD METER - Grow Light Meter#2

PPFD METER - Grow Light Meter by Candas Pamukcu

LUX, PAR, PPFD, DLI & PAR Maps
Strong Contender
🔧 Utilities
4.6(131 ratings)
FreeAdsIn-App Purchases
PPFD METER - Grow Light Meter screenshot 1
PPFD METER - Grow Light Meter screenshot 2
PPFD METER - Grow Light Meter screenshot 3
PPFD METER - Grow Light Meter screenshot 4
PPFD METER - Grow Light Meter screenshot 5
PPFD METER - Grow Light Meter screenshot 6

This app measures light intensity for plants, converting LUX to PPFD and DLI. It offers advanced light mapping, uniformity analysis, and efficiency insights to optimize plant growth. Customize profiles for different environments and growth stages.

VIVOSUN#3

VIVOSUN by VIVOSUN INC

All for grow
Worth Considering
🔧 Utilities
4.7😊(8.7K ratings)
Free
VIVOSUN screenshot 1
VIVOSUN screenshot 2
VIVOSUN screenshot 3
VIVOSUN screenshot 4
VIVOSUN screenshot 5
VIVOSUN screenshot 6

Automate and simplify plant care with this app, offering real-time monitoring, manual controls, and automated grow recipes. Track climate, log growth with diaries, and receive alerts for optimal plant health. Connect with other growers and shop securely for supplies.

What We Love

  • 🚀 Seamless connectivity
  • 👍 Intuitive app interface
  • 🔍 Comprehensive environment monitoring
  • 💡 Helpful journal/logging feature
  • 🛒 Convenient in-app purchasing

Room to Improve

  • 🐛 Connectivity issues and disconnects
  • 🔧 Confusing configuration and automation settings
  • 🕰️ Inconsistent sync between app and hardware
  • 🔍 Lack of advanced customization options
  • 🔌 Compatibility issues with newer devices

More Par Meter apps to explore

FAQ about Par Meter

What are the best par meter apps for iPhone?
Photone - Grow Light Meter tops our par meter apps ranking as of November 2026, with a 4.6-star average from 5K App Store ratings, and it's free to download.
Yes — 20 of the top par meter 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 November 2026.
We track 249+ par meter apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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