# iPAR

> iPAR (iPhone/iPad app by Ignacio Porris Gomez.)

- Source: https://appshunter.io/ios/app/ipar/id960013368 (this page in markdown: same URL + `.md`)
- Developer: [Ignacio Porris Gomez](https://appshunter.io/developer/733151712)
- Category: Reference, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 7.1 · 184 MB
- Languages: English
- Released: 2016-09-21
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/ipar/id960013368/reviews.md

## What is iPAR?

iPAR estimates the Photosynthetically Active Radiation (PAR) using photos of the shadows on the orchard floor taken with an iPhone. Designed and supported by the Lampinen Lab at UC Davis. 

iPAR gives an objective assessment on the canopy PAR interception  of almond and walnut orchards providing an estimate of the potential yield and estimated nitrogen application needs for your almond or walnut orchard directly on your phone. 

Photos are taken of shadows on the orchard floor on a clear day (no clouds) within one half hour of solar noon. The images are then processed to generate a summary directly on your iPhone. 
You can also receive a summary of results by email and locate your orchard on an aerial image to easily spot spatial variations in the orchard.


## Version history (last 2 releases)

### 1.2 — 2018-07-28

This app has been updated by Apple to display the Apple Watch app icon.

Solved unwanted pictures at the start of the app

Other minor improvements

### 1.1 — 2016-09-21

No release notes.

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## More apps by Ignacio Porris Gomez

- [WP Logger](https://appshunter.io/ios/app/wp-logger/id1502284859)

All apps by Ignacio Porris Gomez: https://appshunter.io/developer/733151712

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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 2026-05-19.*