About Bill Organizer

Bill Organizer is made by Dixon App Studio (DixonAppStudio LLC), an independent developer of small, focused apps. It started as an Android app, came to iPhone and iPad, and this website is its web version.

What we believe about bill apps

• No bank login. You shouldn't need to hand over banking credentials to remember when the electric bill is due.
• No account. Your bills stay on your device. We can't see them, lose them or leak them.
• No subscription. The app is free with ads, and a one-time purchase removes them. The website is free with no ads.

How the calculators are built

The 23 calculators use the same formulas as the app: standard amortisation for loans, month-by-month simulation for debt payoff, and monthly compounding for savings. Those formulas are covered by automated tests, including textbook cases like a $200,000, 30-year loan at 6% costing $1,199.10 a month. Every calculator page shows its formula and a worked example generated from the calculator itself.

Calculators give estimates for planning. They aren't financial, tax or legal advice, and your lender's or landlord's terms always take precedence.

Corrections and feedback

Found a mistake or want a calculator we don't have? Email support@dixonappstudio.com. We fix confirmed errors and update the "reviewed" date on the page.