243+ iOS apps curated and reviewed
If you already know PPFD METER, this is the deeper bench. 243+ light meter free plant apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of November 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (131) | Yes | Yes | Nov 2026 | |
| 2 |  | Free | 3.9★ (10) | No | No | Oct 2026 | |
| 3 |  | Free | 3.4★ (9) | No | Yes | Oct 2026 | |
| 4 |  | Free | 4.6★ (5K) | No | Yes | Nov 2026 | |
| 5 |  | Free | 5.0★ (8) | No | Yes | Nov 2026 | |
| 6 |  | Free | 4.4★ (13) | No | No | Nov 2026 | |
| 7 |  | $2.99 | 4.6★ (1.1K) | No | No | Nov 2026 | |
| 8 |  | Free | 2.2★ (13) | No | Yes | Nov 2026 |
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.
This app uses your device's camera to measure sunlight intensity. It helps you determine the best locations in your home for your houseplants to receive optimal light for growth.
Transform your phone into a precise light meter to assess the illumination in any area. Discover which plants will flourish in specific spots based on real-time lux readings and a comprehensive plant database.
