# EST-Leaf — Leaf Inclination Angle Meter

> Leaf Inclination Angle Meter (iPhone/iPad app by Oleksandr Borysenko.)

- Source: https://appshunter.io/ios/app/est-leaf/id6785401199 (this page in markdown: same URL + `.md`)
- Developer: [Oleksandr Borysenko](https://appshunter.io/developer/6783645817)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 16.6 · 5 MB
- Released: 2026-07-08
- Data updated: 2026-09-12
- User reviews in markdown: https://appshunter.io/ios/app/est-leaf/id6785401199/reviews.md

## What is EST?

EST-LEAF is a free of charge application designed for scientific purposes.

Leaf inclination angles are measured using the phone placement. Relevant leaf inclination angle distribution parameters (mean, standard deviation, beta, Campbell, G-function, deWit type) are estimated. Measurements, results can be stored and exported.

Designed for plant scientists, agronomists, ecologists, and anyone conducting leaf area index (LAI) or canopy structure field campaigns.

EST-LEAF is licensed under creative commons, license: CC BY-NC-SA 4.0


## Version history (last 1 release)

### 1.0 — 2026-07-08

No release notes.

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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 2026-09-12.*