Track interest on money lent or borrowed
ByajApp keeps a clear ledger of who owes what, calculates interest the way you'd do it on paper, and shows repayments in plain numbers — no spreadsheets, no guessing.
What you can do
Per-customer ledger
Add an entry for each transaction and see running interest and balance update automatically.
Interest calculators
Simple interest, compound interest, rate finder, and forecast — built in for one-off calculations.
Repayments & settlement
Record part-payments, settle entries on the date you choose, and review the full payment history.
Receipts & agreements
Attach photos or PDFs to any entry so the paperwork stays with the number.
PIN lock
Optional PIN to keep your ledger private if you share your phone.
PDF export
Share a clean PDF of any customer's ledger or a single entry's detail.
Get the app
ByajApp is available on Google Play. An iOS version is in the works.
Legal & support
- Privacy Policy — what data the app collects and how it's used.
- Terms & Conditions — the agreement that applies when you use ByajApp.
- Contact Us — get in touch for support or feedback.