What is Reddit's opinion of Unit Price Comparison?

From 3.5 billion Reddit comments

App is called Unit Price Comparison on Android (https://play.google.com/store/apps/details?id=com.paulkoepke.unitpricecomparison) but I think any unit price will work.

I can't share my Excel sheet, but here are my columns.

Category (Flipp) Sort Category (Flipp) (used so I can sort and group categories) Product Price
Size Unit
Unit Price
Common Unit (used when I need to compare lb to g/kg) Unit Price
Store (so I know where I last bought it) Date (so I know when I last bought it, good to know if you haven't seen a comparable price in months)

A couple hours the first couple weeks to start and get set up. After that, I think I spend a hour a week checking flyers. Then it's deciding how many stores I might need to hit that week.

The big thing is figuring out your staples and build on those one week at a time.

I took this class on Coursera: https://www.coursera.org/course/androidapps101/ - It's perfect for a beginner: moderately paced and he shows you all of his steps. I did every assignment as well as I could and followed his code during lectures, because when you're as new as am every chance to code is a chance to learn new things.

At the same time I was reading this book: http://math.hws.edu/javanotes/ - it's a free textbook on Java, so it helped me understand the syntax and theory.

Then I sat down and wrote this app: https://play.google.com/store/apps/details?id=com.paulkoepke.unitpricecomparison - I knew that what I was making was essentially a calculator, so I found a tutorial online that showed you how to make a calculator for Android and modified what I learned into this app.

Now I can say that I'm an Android developer and my app has dozens of downloads - DOZENS!

This is the one I use on Android

https://play.google.com/store/apps/details?id=com.paulkoepke.unitpricecomparison

Funny, I made a barbell plate calculator too! https://paulkoepke.com/barbellPlatesCalculator/ I'd like to see yours too.

I also made a unit price calculator because my local grocery store doesn't post unit prices on a lot of things: https://paulkoepke.com/unitpricecomparison/ (web) https://play.google.com/store/apps/details?id=com.paulkoepke.unitpricecomparison (Android app)

And a tip calculator that rounds the total to the nearest dollar: https://paulkoepke.com/tip_calculator/ (web) https://play.google.com/store/apps/details?id=com.paulkoepke.tipcalculator (Android app but really just a webview).

Like you said, these things already existed elsewhere. But mine have no ads, are lightweight and fast, do things they way I want them to (minimal input required), and were an opportunity to practice.