How to build the perfect app for mustachians?

[richardreeze]

Hi all,

I'm a huge MMM fan (read every post). In fact, I spent all of 2017 writing a blog (52 posts) summarizing the lessons of MMM and other FI bloggers: https://medium.com/personal-finance-series-by-richard-reis

Recently, I realized that no app has been built specifically for our movement. Mint, Personal Capital, NerdWallet, etc weren't really built for us.

By "for us" I mean an app that:
1. Looks at your income.
2. Calculates how much you need to retire (yearly spending * 25)
3. Helps you get to that amount (helps you pay off debt, encourages you to save money, looks at cheaper alternatives in your area for things like wifi or any service, etc...).

So my question is: Have any of you used one (or more) of the finance apps out there and thought "I wish it did this" or "I would LOVE if it did this"? If so, what is "this"? I really want to build it because I believe our approach to personal finance is by far the best one out there and yet highly underserved.

[deborah]

While this isn’t an app, it’s good.

https://forum.mrmoneymustache.com/share-your-badassity/one-sheet-to-rule-them-all/

[richardreeze]

While this isn’t an app, it’s good.

https://forum.mrmoneymustache.com/share-your-badassity/one-sheet-to-rule-them-all/

Wow! Now THAT is a spreadsheet. Thanks for sharing. I wonder how much of this could be automated if the user just adds their bank account(s).

Quick, unrelated question (because it says your location is Australia), how do the FI principles differ in another country? I assume that the 4% withdrawal amount from Vanguard rule will be different in another country, right? I ask this because I'll make my app US only at first, but only because (I think) I have no choice.

[jong21]

While this isn’t an app, it’s good.

https://forum.mrmoneymustache.com/share-your-badassity/one-sheet-to-rule-them-all/

Wow! Now THAT is a spreadsheet. Thanks for sharing. I wonder how much of this could be automated if the user just adds their bank account(s).

Quick, unrelated question (because it says your location is Australia), how do the FI principles acmarket download differ in another country? I assume that the 4% withdrawal amount from Vanguard rule will be different in another country, right? I ask this because I'll make my app US only at first, but only because (I think) I have no choice.

This is cool