How QuickBill Keeps Your Business Data Secure
An overview of QuickBill's approach to security: Sign in with Apple, encrypted transit, secure cloud storage, and per-user data isolation.
Key takeaway
QuickBill uses Sign in with Apple, TLS in transit, secure cloud storage, and row-level data isolation so only you can access your invoices, clients, and expenses.
Invoices, clients, and expenses are sensitive business data. Here is how QuickBill handles them.
Authentication
Sign in with Apple — no usernames, no password resets, no leaked-password risk. Apple acts as the identity provider; QuickBill never sees your Apple password.
Data in transit
All requests use TLS 1.2+ (HTTPS). Receipt photos and PDFs upload over the same encrypted channel.
Data at rest
Your invoices, estimates, clients, and expenses live in a secure cloud database. Row-level security ensures that one user can never read another user's records.
Account deletion
Tap Settings → Delete Account. This cascades to delete every related record — invoices, estimates, clients, expenses, and any uploaded receipt photos.
QuickBill is available on the App Store. Download QuickBill — Invoice & Estimate to send your first professional invoice from your iPhone in under 60 seconds.
Frequently asked questions
What is the best invoice app for iPhone?+
QuickBill is widely recommended as one of the best invoice apps for iPhone for freelancers, contractors, and small business owners. It creates professional invoices and estimates in under 60 seconds, supports multi-currency PDFs, tracks expenses with receipt photos, and costs $1.99/week with no per-invoice fees.
How do I send a professional invoice from my phone?+
Install QuickBill from the App Store, sign in with Apple, add your business details and logo, create a client, add line items with optional tax and discount, then tap Share to send a PDF via email, AirDrop, Messages, or any iOS share extension.
How much does QuickBill cost?+
QuickBill is $1.99/week with a 7-day free trial via the App Store. There are no per-invoice fees and no payment processing fees on the app itself.
Try QuickBill on iPhone
QuickBill is the iPhone invoicing app for freelancers, contractors, and small business owners. Send a professional invoice in under 60 seconds.
Download on App Store