# GrowPAR — PPFD, DLI & Light Optimizer

> PPFD, DLI & Light Optimizer (iPhone/iPad app by Halil Fatih Ozturk.)

- Source: https://appshunter.io/ios/app/growpar/id6762544264 (this page in markdown: same URL + `.md`)
- Developer: [Halil Fatih Ozturk](https://appshunter.io/developer/1894571973)
- Category: Utilities, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 11 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, European Spanish, Turkish
- Released: 2026-04-21
- Data updated: 2026-08-05
- User reviews in markdown: https://appshunter.io/ios/app/growpar/id6762544264/reviews.md

## What is GrowPAR?

GrowPAR turns your iPhone into a professional-grade PAR light meter for indoor growing, hydroponics, and plant research.

What is PAR?
Photosynthetically Active Radiation (PAR) measures the light your plants actually use for photosynthesis — between 400–700nm. Unlike lux meters, GrowPAR measures what matters most to your plants.

KEY MEASUREMENTS
- PPFD (μmol/m²/s) — Instant photon flux density
- DLI (mol/m²/day) — Daily Light Integral for growth optimization
- CCT (Kelvin) — Color temperature of your light source
- Lux — Illuminance measurement

PLANT INTELLIGENCE
GrowPAR includes a database of 36+ plants with scientifically accurate targets:
- Stage-based PPFD targets: Seedling → Vegetative → Flowering → Harvest
- Ideal temperature (day/night), humidity, and CO₂ levels
- Hydroponics parameters: pH range and EC values
- LED distance and photoperiod recommendations
- Real-time sufficiency indicator: Is your light enough?

LIGHT SOURCES
Calibrated for all grow light types:
- Full Spectrum LED • Red/Blue LED • HPS • CMH • Natural Sunlight

MEASUREMENTS & HISTORY
- Save unlimited measurements with timestamp
- Filter by plant and light source
- Export to CSV for analysis

CALIBRATION
Use with Apogee MQ-500 or similar quantum sensor for research-grade accuracy.

11 LANGUAGES
English · German · Spanish · Turkish · French · Italian · Portuguese · Russian · Japanese · Chinese · Arabic

Whether you're growing tomatoes, microgreens, or orchids — GrowPAR gives you the data to grow smarter.
Privacy Policy: https://hfozturka.github.io/growpar/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/


## Version history (last 5 releases)

### 1.9 — 2026-08-02

Smart Home integration: control your Apple Home (HomeKit) plugs from GrowPAR and automate your grow lights based on DLI targets. Added sunlight guide, VPD calculator, growth journal, and custom plant support. Bug fixes and performance improvements.

### 1.7 — 2026-07-21

- Performance improvements and bug fixes

### 1.6 — 2026-07-16

- Performance improvements and bug fixes
- Enhanced plant database
- UI improvements

### v1.5 — 2026-07-14

- Performance improvements and bug fixes
- Enhanced plant database
- UI improvements

### V1.4 — 2026-07-13

- Performance improvements and bug fixes
- Enhanced plant database
- UI improvements

## Apps similar to GrowPAR

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [MoeuPLTest](https://appshunter.io/ios/app/moeupltest/id6757464940) | — | Free | Utilities |
| [LumenSpatial](https://appshunter.io/ios/app/lumenspatial/id6760910947) | — | Free | Utilities |
| [Eventscase Kiosk](https://appshunter.io/ios/app/eventscase-kiosk/id1456591810) | — | Free | Utilities |
| [LUX METER- Lux,Fc,PPFD](https://appshunter.io/ios/app/lux-meter-luxfcppfd/id6780143255) | — | Free | Utilities |
| [LumenLeaf: PPFD Grow Light](https://appshunter.io/ios/app/lumenleaf-ppfd-grow-light/id6771374329) | — | Free | Utilities |
| [Grow Light Meter: PPFD](https://appshunter.io/ios/app/grow-light-meter-ppfd/id6784830058) | — | Free | Utilities |

## More apps by Halil Fatih Ozturk

- [SurgeAI](https://appshunter.io/ios/app/surgeai/id6764264458)

All apps by Halil Fatih Ozturk: https://appshunter.io/developer/1894571973

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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 2026-08-05.*