A free no spend tracker that runs in your browser

What this tracker counts

Most no spend trackers score a run of perfect days. You mark each day clean or spent, and the number they show you is how many days you have managed in a row. Buy one coffee and it goes back to zero.

This tracker counts money. Every time you decide against something, you record what you were ready to spend and what you actually spent, and the difference is added to a running total. Buy the thing and there is simply no entry that day. The total does not move, and it never goes backwards.

Counting money also means the tracker can record the middle. Ninety dollars planned and forty spent is a fifty dollar entry, which a tracker built on clean days has nowhere to put.

Using the tracker

1. Press Log a Diff. Or pick one of the worked examples above, which opens the same form already filled in.
2. Put in what you were ready to spend. The real number you had accepted paying, which is usually lower than the most expensive version you could justify.
3. Say what you actually spent. Usually nothing, which is what the "Didn't buy it" button is for.
4. Watch the total. The total only ever goes up, one better decision at a time.

This page forgets everything

Close the tab and the total is gone. There is no account here, nothing is stored, and nothing is sent anywhere. The app makes a promise in the same spirit: we never see what you log in it. If you want the total to still be there tomorrow, install the app.

Keep the Diff is free on iPhone, iPad, Mac, Apple Watch, Windows, Linux and Android. The free app remembers the total between sessions, marks milestones like your first $100 kept with a card to share, and after four weeks shows what this pace adds up to over a year. There is a longer explanation of the approach, a paper version you can print, and a calculator for working out when a total gets you to something.