CustomInvoice Support
Everything below describes the app as it actually behaves. If something here does not match what you are seeing, tell us - that is a bug worth knowing about.
Contact us
One person answers these, usually within a couple of days. Telling us your device and what you were doing when it went wrong makes it much faster.
info@customapps.usGetting started
There is no sign-up, no account and no email to confirm. A new install points you at Settings, then Your business - the name and address that appears at the top of every document you send. Add your logo and a brand colour there too if you want them. Then go to the Documents tab and write your first invoice. The whole thing takes about two minutes, and none of it requires a network connection.
Writing your first invoice
From the Documents tab, start a new invoice and pick a client, or add one there and then without losing what you have typed. Add a line item with a description, a quantity and a rate, and the total updates as you go. Apply a tax rate per line if the job needs it, discount a line or the whole document, and the balance due is computed for you.
Sending it, and what "sent" means
Open the preview to check the document, then send it by email from the app or push it through the share sheet. The PDF goes through your own mail app or share target, not through us. Nothing is marked as sent automatically: you tell the app it went out, which is what keeps the status honest. Printing and a second share button are deliberately switched off in the preview so that sending has exactly one path.
Recording a payment
Add a payment against the invoice for the amount you actually received. Add as many as you need. The document moves to part paid and then to paid on its own, and the list shows what is still owed. Outstanding and overdue are worked out from these payments every time they are displayed, so there is no separate status for you to keep in step.
Getting your records out
Settings saves a complete backup of everything - documents, payments, clients, tax rates, settings and your logo - as one file. Keep it somewhere safe, and restore it on a new phone from the same screen; restoring replaces what is on that phone. The Reports tab also exports your documents and payments to CSV for your accountant, but CSV is a report, not a backup: use the backup file to move to a new phone.
Something else went wrong
Close and reopen the app first. Your data is stored locally, so restarting loses nothing. If a document looks wrong, check Settings then Your business, which is where the name and address at the top of every document comes from. If it still looks wrong, email us with your device model and what you were doing.
Things people ask, and one limit worth knowing
My documents look anonymous. What did I miss?
Settings, then Your business. That is the name and address printed at the top of everything you send, and a new install points you there first. If it is still empty the preview will say so before you send, but it will never block you from sending.
How do I put my logo and brand colour on a document?
Both live in Settings alongside your business details, and once set they apply to every template. Choose a brand colour from the palette or enter your own. The bundled palette was picked so that the colour stays legible against the document background.
Can I use my own document numbers instead of INV-0001?
Yes. Set your own prefix and starting number, and each document type keeps a separate sequence, so invoices, estimates and receipts count independently. A number is never reused once issued, even if you void the document that used it.
How do I mark something as sent, or void it?
Each row in the documents list has a button that opens those actions, so you do not have to long-press to find them. Voiding keeps the document and its number in your records rather than deleting the history.
A client paid me half. How do I record that?
Add a payment for the amount you actually received. The document moves to part paid and the list shows what is still owed on it. Add the rest later and it moves to paid. You can record as many payments against one invoice as you need.
How do I get my records off the phone, or onto a new one?
Settings saves a complete backup of everything - documents, payments, clients, tax rates, settings and your logo - as one file. Keep it somewhere safe, and restore it on the new phone from the same screen (restoring replaces what is on that phone). The Reports tab also exports your documents and payments to CSV for your accountant; that is a report, not a backup.