Features & Capabilities

The Leaf Doctor performs quantitative assessments for plant diseases on plant organs such as leaves. Users collect or submit photographs of diseased plant organs and calculate the percentage of diseased tissue. Through a user’s touching of the device screen, the algorithm employs user-specified values for up to eight colors of healthy tissues in the photograph. The color of each pixel is then evaluated for its distance from the healthy colors and assigned a status of either healthy or diseased. Users may slide a threshold bar until satisfied that diseased tissues are represented accurately before the percentage calculation. The assessment data and photographs may be sent by e-mail to any recipients. Instructions for using the app are provided on the About screen. The Leaf Doctor was produced by the University of Hawaii at Manoa, College of Tropical Agriculture and Human Resources.

User Growth & Download Statistics

App
By:
University of Hawaii
Rating:
2.00
(23)
Version:
1.1 Last updated: 2017-10-24
Version code:
841459507
Creation date:
2014-05-08
Compatible devices:
Size:
3.28MB
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-06
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
University of Hawaii
Apple Apps Store
https://apps.apple.com/us/app/leaf-doctor/id874509900

User Reviews

This app is helpful for quickly quantifying the severity of disease lesions on plant tissue for use in determining treatment thresholds.
by b.*****, 2025-12-10

The app tells me everything is healthy. No matter the threshold, no matter the plant. Some of the plants I KNOW are sick. App doesn’t work.
by Je*****, 2022-10-13

If you want a diagnosis and assistance with control, see your local county extension agent. If you need to quantify the % leaf area containing lesions using an iPad then use this. Glad this is available. I am going to try it out and see if it can assist technicians with conducting ratings.
by re*****, 2022-06-09
View all user reviews ›

Best Leaf Doctor Alternatives

Here are some Apple apps that are similar to Leaf Doctor: