Ultimate Calculator is your all-in-one toolkit for everyday money math — discounts, tax, loans, bill splitting, and more, all in one app.

What's inside:

💰 Discount Calculator — Instantly work out sale prices, percentage savings, and reverse-calculate the original price from a discounted total.

🧾 Tax & VAT Calculator — Add sales tax or VAT onto any price with a full breakdown of the tax portion.

📄 Tax Removal — Extract the pre-tax original price and the tax portion from any invoice total.

🍽️ Bill Splitter — Split restaurant or group bills fairly, including tips and extra charges.

👥 Group Order Splitter — Add every item, who bought it, and any shared shipping or discount — see each person's exact fair share, calculated automatically.

📊 Unit Price Comparison — Compare two products across different units and quantities to find out which one is really cheaper.

🏦 Loan & Instalment Calculator — Estimate monthly payments, total interest, and total amount payable for any loan.

...and more calculators covering business, profit margins, and everyday utilities.

How the free version works:

Every new user starts with 25 free credits — enough to explore the app right away, no payment required. Credits are used for calculations, and you can top up any time by watching a short, optional ad. Nothing is ever forced on you: ads are always your choice, never automatic pop-ups interrupting what you're doing.

Prefer zero ads entirely? Ultimate Calculator Pro (a separate one-time purchase) unlocks everything permanently with no ads and no credits system at all.

Also included:

🎨 10 visual themes to choose from — some available immediately, others unlockable for free by watching a short ad 💱 5 currency options, with your own default tax rate saved automatically 📱 Fast, clean interface built for quick everyday use

Whether you're comparing prices while shopping, splitting a bill with friends, working out a loan, or handling tax on an invoice, Ultimate Calculator keeps every tool one tap away.