Generate Invoices.
Anywhere.
No Internet Required.
Whether you are working remotely, traveling, or just value your privacy, Clock & Bill allows you to create professional PDF invoices completely offline on your Android device.
Most billing apps fail when you lose connection.
We believe you shouldn't be locked out of your financial data just because your connection dropped. Clock & Bill is built from the ground up as a native offline invoice maker app, ensuring your business never stops exactly when you need to bill a client.
Secure, Private
Local Storage
Say goodbye to cloud subscriptions that hold your data hostage. Every client, time log, and invoice is stored safely on your phone's internal storage, protected by PIN lock and Biometric (FaceID/Fingerprint) security — both free for all users.
Generate PDFs
without WiFi
Our powerful local rendering engine creates professional PDF invoices with your logo, digital signature, and brand color — all free — directly on your Android device. No cloud processing required, and completely exportable to CSV anytime.
100% Free. Every Feature. No Catch.
No subscriptions. No sign-up. No hidden fees. Every feature included from day one.
- Unlimited Time Tracking
- Unlimited Clients & Custom Rates
- Professional PDF Invoices
- Custom Company Logo & Brand Color
- Hand-Drawn Digital Signature
- PIN Security
- Biometric Lock (FaceID / Fingerprint)
- Privacy Screen
- CSV Data Export
- 100% Offline — No Internet Needed
- Local-Only Storage (Your Data Stays Yours)
- Dark / Light / System Theme
- No Account or Sign-Up Required
Offline App FAQ
Common questions about using Clock & Bill entirely offline.
Does this invoice maker work completely offline?
Yes! Clock & Bill is an offline-first mobile application. You do not need any internet connection to generate professional PDF invoices, track your time, or manage clients. Everything runs locally on your Android device.
Is there a limit to how many invoices I can create offline?
No limits at all. The free tier allows you to generate unlimited PDF invoices directly on your phone's storage alongside unlimited clients.
How do I send an offline invoice to my client?
Once you generate the PDF file on your device, you can use any native Android sharing app (like Email or WhatsApp) to send the file. You only need internet briefly to send the message.
Is my offline data safe?
Extremely safe. Your data never leaves your device — there is no cloud sync. All storage is fully local. Both PIN lock and Biometric (FaceID/Fingerprint) security are available free to all users, so your financial data stays strictly private.
Ready for true offline billing?
Join thousands of independent workers who stopped relying on the internet to get paid.
Download for Android