
DBFI Finance Calculators
Loan, mortgage, savings, tax
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Free
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About
DBFI Finance Calculators, shown as DBFI Simulateurs on your device, brings together twenty-one financing and wealth calculators, in five families: credit and financing, property, savings and investment, taxation, business.
Every calculator shows its work. Under the result, the detail unfolds: the inputs used, the steps, the subtotals. You see where the figure comes from, and you can redo it by hand.
Borrowing capacity, monthly payment, early repayment charge, rental yield furnished or unfurnished, notary fees, property taxation, savings projection, life insurance, SCPI, factoring, stock pledge, balance sheet analysis, Lombard credit, owner buy-out.
Every calculation runs on your phone, offline. No registration, no account, no advertising, no analytics. Your simulations stay on the device.
If a simulation interests you, you can ask to be called back: your name, your phone number and the simulation in progress are sent to us, and nothing else, after your explicit consent.
The interface and the content are in French, and the calculations follow French rules and French market practice.
The simulations are indicative and have no contractual value. They are neither a credit offer nor personalised advice.
DB FRANCE INVEST, credit and payment services intermediary, registered with ORIAS under number 20008511, verifiable at www.orias.fr.
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What's New in DBFI Finance Calculators
1.0.1
September 16, 2026
The legal form shown on the About screen is corrected. The app now declares French as its language. The twenty-one calculators and their formulas are unchanged.
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