# GDU Calculator — user reviews

> 4 indexed App Store user reviews of GDU Calculator by IFA Productions Inc., rated 2.50/5 from 11 ratings.

- Source: https://appshunter.io/ios/app/gdu-calculator/id850528308/reviews
- App overview in markdown: https://appshunter.io/ios/app/gdu-calculator/id850528308.md
- Rating breakdown: 5★ 2 · 4★ 1 · 3★ 2 · 2★ 2 · 1★ 4

## Most critical reviews (4 lowest-rated)

### 1/5 — Instantly Crashes

*2022-09-08*

Crashes after tapping on field name. App is great when it works.

**Developer response:** We apologize for the issues you're having.  Please try deleting and re-installing the app to see if this resolves the problem.  If you continue to have problems, please reach out to us at info@agphd.com.

### 1/5 — Doesn’t work properly

*2020-04-26*

This app does not configure to you screen!! So when you enter info you can barely hit the done button. Then went to edit some info and you can’t even see the done button and can’t scroll down either. BAD app

**Developer response:** We apologize for this error and are currently working to issue a fix ASAP.  You should be receiving the update any day now.

Thanks,
Ag PhD

Edit #1:  Update to the app has been submitted to the App Store for review.  Fix should be deployed within 24-48 hours.  

Edit #2 (04-29-20):  Update is now live in the App Store.  Please let us know if your issue has been resolved.

### 2/5 — Ok

*2020-08-20*

I like the features of the app, but to make it great I’d like to see a five year average of GDU’s and a +/- from this year and also a +/- from last year to really know how the year is stacking up.

### 5/5 — PGR calculator

*2021-06-12*

Works for calculating GDD to time PGR apps for turfgrass. I am shooting for .125oz/1k sqft every 300 GDD on 1/2” zenith zoysia. This app makes it easy to know when to reapply.

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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 2026-06-04.*