# KNF Solutions — user reviews

> 7 indexed App Store user reviews of KNF Solutions by Eric Weinert, rated 4.70/5 from 11 ratings.

- Source: https://appshunter.io/ios/app/knf-solutions/id1224969180/reviews
- App overview in markdown: https://appshunter.io/ios/app/knf-solutions/id1224969180.md
- Rating breakdown: 5★ 9 · 4★ 1 · 3★ 1 · 2★ 0 · 1★ 0

## Most critical reviews (7 lowest-rated)

### 3/5 — Featureless

*2020-03-01*

For $4 you would think the app comes with more than a calculator without instructions on how to use. There’s almost nothing to this app. It could be built in an excel sheet in a few minutes.

### 4/5 — Quick reference

*2021-10-18*

Really great for mixing solutions and to check some instructions and storage data when making inputs. Has recipes under the quick help menu. Could use some spelling refinement in those recipes, and some more information on the soap calculator(dilution rates for wetting agent) would be really helpful, but I love the app and use it a couple of times per week.

### 4/5 — Handy and concise

*2018-06-07*

Could use the addition of some images and videos. But overall a simple collection of info and easy to use measurement calculator.

### 5/5 — Next level + OG feeding

*2020-08-11, version 4.2.2*

Thank you for the YouTube vids, I can’t wait to use this app to start producing my own food for my foods ;)

### 5/5 — Support KNF!

*2019-08-23*

This app is handy and I think KNF classes should be mandatory for every person in the world...  Even if you know the math, buy this app and support these folks as they are truly spreading an important message!

Note: In the soap calculator KOH is listed as an ingredient but is not explained on the acronyms help page.

### 5/5 — Easy to use

*2019-08-03*

Super simple if you’re not looking to convert too much. We Run a 5 gallon bucket and a 100 liter bucket. Using this makes it super simple!! 
Here’s some other important conversions: 

1 us teaspoon: 4.93 ml
1 us tablespoon: 14.78 ml
1 us fluid oz: 29.57 ml
1 us cup: 240 ml
1 US pint: 473.17 ml
1 us quart: 946.35 ml
1 us gallon: 3785.41 ml

(Note: us metrics are different than imperial)

Drake, you’re more than welcome to use that right by the “quick help with solutions” area. It comes in super handy!!

### 5/5 — Great, thanks Eric!

*2018-05-06, version 4.0.0*

Really appreciate all your content and teaching us this information for free on YouTube. You're an amazing human being!

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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 2026-06-25.*