# Hydrology Formulator — user reviews

> 5 indexed App Store user reviews of Hydrology Formulator by Historycentral.com Inc, rated 5.00/5 from 1 ratings.

- Source: https://appshunter.io/ios/app/hydrology-formulator/id346512904/reviews
- App overview in markdown: https://appshunter.io/ios/app/hydrology-formulator/id346512904.md
- Rating breakdown: 5★ 1 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (5 lowest-rated)

### 1/5 — PE

*2011-12-24*

Needs to show formulas used in calculations.  If not careful one could get poor results.

### 1/5 — Not very user friendly

*2011-05-13*

Needs a better interface. Formulas should be shown. Text gets cut off on menus. Please update. You can do much better.  No sediment transport equations. Come on!!

### 1/5 — Not quite ready for professional use.

*2010-06-04*

great idea but needs more transparecy in formulas, more useful formulas, recommendations for obscure values (e.g. Vapor pressure), easier use of English units.

### 3/5 — A good tool..but

*2010-09-03*

All sorts of great calculators ...but what's up with the long scrolling to find anything. Some menus would be nice.    Also the words are too big and u can't see most of the description of what your clicking on!! But I give 3 stars cuz it's the only hydrology app!  Please update this sucker...it was 5 bucks!!

### 3/5 — Needed additions

*2010-04-21*

Not a bad start.  How about adding a conversions calculator for hydraulic conductivity that includes cm/s, ft/d, gal/d/ft2, and other commonly used units, and the analogous units for transmissivity.

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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 2026-07-15.*