Double-entry personal finance

Your money.
Your rules.

Apollo gives you the mathematical truth of professional accounting — automated by transparent rules you write, never a black-box AI.

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In $13.4KOut $11.2K

Why double-entry

Aggregators are pretty but shallow.

Single-entry apps lose track the moment you move money between accounts. Apollo posts every dollar twice — so your net worth, cash flow, and savings rate are always exactly right.

Double-entry truth

Every dollar posts twice. Net worth, cash flow, and savings rate stay mathematically exact.

Rules, not AI

Deterministic automation you write and audit. Match sources, destinations, amounts, and patterns — transparently.

Income-based budgets

Allocate percentages of salary so variable months stay balanced automatically.

Variable income

Budgets as percentages of salary

Freelancers and contractors don't get a fixed paycheck. Apollo allocates in percentages — so a $2,500 month and a $10,000 month both stay perfectly allocated.

Salary · May

$8,420

Needs 50% Wants 30% Savings 20%

Connect an account in two minutes.

Apollo handles the accounting — you keep the authority.

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