PhotoFolia app for iPhone and iPad

4.6 ( 6656 ratings )

Utilities Food & Drink
Developer: Miguel Garvie

Free

Current version: 1.9, last update: 4 months ago
First release : 03 Oct 2023
App size: 5.8 Mb

Plant life depends upon photosynthesis, which starts with absorption of light energy by the green pigment chlorophyll. The chlorophyll concentration in a leaf can be inferred from its colour.

PhotoFolia uses a colour standard and proprietary algorithms to provide a calibrated measurement of leaf spectral reflectance, from which chlorophyll and nitrogen concentration as well as SPAD value can be inferred. Photofolia allows users to select the particular plant species to give the best possible meausrment. Results are stored in the cloud, and can be viewed on a web browser at https://colourworker.com/apps/photofolia/showmeasurements