Personal finance

LucasApp Blog

Practical personal finance notes: budgeting, spending, subscriptions and saving, written by the maker of LucasApp.

budgetingJuly 3, 20264 min read

The 50/30/20 budget: a simple rule to organize your money

How the 50/30/20 rule splits your income into needs, wants, and savings — with realistic examples, common pitfalls, and how to adapt the percentages to your life.

subscriptionsJuly 3, 20264 min read

How to audit your subscriptions (and stop paying for forgotten ones)

A practical subscription audit in four steps: find every recurring charge, sort each one into keep, downgrade, or cancel, and track renewals so they never surprise you again.

debtJune 29, 20265 min read

Credit card APR, minimum payments, and how to pay off a balance

Understand how APR works on revolving balances, why minimum payments keep you in debt, and practical steps to pay off credit card balances faster.

savingJune 29, 20265 min read

How compound interest works (and why starting early matters)

Compound interest turns small, consistent savings into meaningful growth over time. Learn how it works, the rule of 72, and how to apply it to real savings goals.