---
title: "LumenLeaf: PPFD Grow Light - Reviews, Revenue and Downloads in Czechia | Apple App Store"
description: "LumenLeaf turns your phone into a real PAR / PPFD grow light metre for monstera, fiddle leaf fig, pothos, snake plant, succulents, orchids, microgreens, chilli plants, herbs and indoor gardens — all f"
---

# LumenLeaf: PPFD Grow Light — Czechia
> PAR DLI Metre for Houseplants

![LumenLeaf App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/50/a2/fd/50a2fd20-0af3-6716-4cd2-8db6a9f65cdb/AppIcon-0-0-1x_U007ephone-0-1-sRGB-85-220.png/434x0w.png)

**Developer:** [lapnito.cz s.r.o](https://apptail.io/developer/lapnitocz-sro-FQQe) (Czechia)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** cz.lapnito.lumenleaf
**Store:** Apple App Store
**Country:** Czechia
**Version:** 1.0 (released 2026-05-27)
**Original Release:** 2026-05-27
**Languages:** English, Arabic, Czech, Danish, Dutch, French, German, Greek (modern), Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Chinese, Spanish, Swedish, Thai, Turkish, Ukrainian, Vietnamese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/cz/app/app/id6771374329)
**AppTail Page:** [https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/czechia](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/czechia)

## LumenLeaf Description
LumenLeaf turns your phone into a real PAR / PPFD grow light metre for
monstera, fiddle leaf fig, pothos, snake plant, succulents, orchids,
microgreens, chilli plants, herbs and indoor gardens — all free,
offline, with no account, no ads and no subscription.

Measure photosynthetically active radiation (PAR / PPFD), Daily Light
Integral (DLI), illuminance (lux / foot-candle) and colour temperature
(Kelvin) directly with your phone's camera and ambient light sensor.

WHAT YOU CAN MEASURE
- PPFD in µmol/m²/s — real-time photon flux density
- DLI in mol/m²/d — daily light integral with photoperiod input
- Lux and foot-candle illuminance
- Colour temperature in Kelvin (CCT)
- Per-light-source readings: Sunlight, White LED, HPS, CMH, Fluorescent, Mixed

WHY LUMENLEAF
- 100% free — every feature, every plant preset, no paywalls
- No account, no email, no sign-up
- Works fully offline
- Available in 20 languages from launch
- Honest about accuracy — we tell you when you're on camera mode vs ALS estimate
- No physical hardware to buy — interactive printer-paper diffuser walkthrough
- Zero data collection, no analytics SDK, no advertising IDs

PERFECT FOR
- Houseplant parents — monstera, fiddle leaf, pothos, snake plant, calathea, ZZ
- Microgreen growers
- Indoor herb gardens — basil, mint, rosemary, oregano
- Succulents, cacti and orchids
- Conservatory and greenhouse hobbyists
- Chilli and tomato growers
- Hydroponic and aeroponic setups
- Aquarium plant keepers (v1.1)

HONEST ABOUT ACCURACY
LumenLeaf is the only free grow light metre that openly distinguishes
camera-grade readings from ambient light sensor (ALS) estimates. If
your phone doesn't have a calibration profile, we tell you — no
silent fallback that quietly halves your accuracy.

HOW IT WORKS
LumenLeaf uses your phone's rear camera in RAW mode (when supported)
for research-grade illuminance, then converts to PPFD using
light-source-specific coefficients. On phones without RAW support,
we fall back to the ambient light sensor and clearly mark which mode
you are on. A simple printer-paper diffuser is required — build one
in under 2 minutes with our visual guide.

## LumenLeaf Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d7/ab/2b/d7ab2b74-6bb0-1510-5b65-bf5e01203e7c/01_split_left.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d3/80/5e/d3805e03-88e3-ee6b-a2dc-16b12d309d41/02_split_right.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/44/fd/cc/44fdcc9f-1730-b78c-b4e3-eb61c8f57e73/03_dli.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f9/b0/d5/f9b0d5f5-e731-be8f-3904-6f41d654d824/05_targets.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/43/62/6a/43626ad5-aad4-d974-8065-cbcb7b5f59c8/04_plants.png/1284x2778.png)





## LumenLeaf Discovered Keywords
- ppfd grow light


## LumenLeaf Available In
- [United States](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/united-states)
- [Japan](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/japan)
- [Chile](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/chile)
- [Czechia](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/czechia)
- [Dominican Republic](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/dominican-republic)
- [Indonesia](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/indonesia)
- [Israel](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/israel)
- [India](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/india)
- [Austria](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/austria)
- [South Korea](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/south-korea)
- [Kazakhstan](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/kazakhstan)
- [Lithuania](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/lithuania)
- [Malta](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/malta)
- [Malaysia](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/malaysia)
- [Norway](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/norway)
- [Russia](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/russia)
- [Canada](https://apptail.io/app/lumenleaf-ppfd-grow-light-BFFA/canada)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*