If you do a search for "invoice" on the Google Play Store, you'll come up with quite a number of hits. Out of those hits I have weeded out which of those I believe are best suited to help small business users take work on the go without missing a single bill. Let's examine these top five apps.
Invoice2Go is probably my top choice is this particular list because it's not only a full featured invoice tool, it also has one of the better interfaces to help make the process of billing highly intuitive (Figure A).
Invoice2Go running on the Verizon-branded Samsung Galaxy Tab.
The feature list includes: Create invoices (Figure B), estimates, credit, memos, and purchase orders; over twenty invoice templates; supports products and services; include PayPal buttons for quick payment; keep track of outstanding bills; invoice preview; email as PDF, create estimates and quotes; convert estimates/quotes into invoices; inventory; auto tax calculations and configurations; twelve drill-down reports; and more.
Creating an invoice with Invoice2Go.
Within the product you can also add on apps for Calendaring, barcode scanning, maps, document signing, and account statements. Invoice2Go does require an account and you can sign up for the unlimited free trial. However, once you've created your first three documents, you will have to upgrade from the free trial. The Starter plan is $49.00 per year and allows you to create 100 documents. The app is $9.99 or you can try the free version which limits you to the number of documents and items you can create.
2. Zoho Invoice and Time Tracking
Zoho Invoice and Time Tracking requires you have a Zoho account – but if you're already using the powerhouse groupware tool, Zoho Invoice makes for a perfect extension. With this app you can use ready to use templates, categorize expenses, accept online payments, track time, print and download invoices, track payment status, and much more. The Zoho Invoice tool is integrated with Google Apps for more power and flexibility. The interface for Zoho Invoice is clean (almost minimal – Figure C) and gives you quick access to creating a new invoice/contact/estimate, record expense, and add time entry.
The Zoho Invoice main interface.
You can also set payment terms, auto-generate invoice numbers, add notes and terms/conditions to invoices (Figure D).
Adding payment terms for invoices.
The app is free, but you will have to subscribe to Zoho with paid plans starting at $15/month.
3. Invoice Control
Invoice Control is a much more basic app, but for those needing the bare minimum (at no cost), Invoice Control is for you. It is a free, ad-based app (Figure E) that can function for anyone needing simple, on the go invoicing.
On the go invoicing.
One nice feature of Invoice Control is that it is a multi-user environment – so you can have more than one employee use the tool. The app also features: Invoice creation (Figure F) customer management, product/inventory control, quote generation in PDF format, generation partial invoices, include company logo, choose color of invoice header, import data from spreadsheets, backup data, send invoices through Whatsapp or Line, save invoices into Dropbox account, scan barcodes, mark invoices as sent or paid.
Creating an invoice with Invoice Control.
You can also integrate Invoice Control with Control Expenses (by the same company) to help track spending.
4. Invoice Maker Pro
Invoice Maker Pro is another bare-bones, but effective invoicing tool. With an easy to use interface (Figure G) that offers little to no learning curve, you can have Invoice Maker Pro up and running with little time and zero cost.
The Invoice Maker main window.
You do not have to sign up for any plans and the app is free. The feature list of Invoice Maker Pro includes: Preview invoices directly from device, email invoices as attachments, auto-calculate sales tax, track invoice payments, view clients unpaid balance, customize PDF with company logo, assign unique codes to each client (Figure H), auto backup of invoices, generate invoices as estimates, support for over one hundred currencies, and more.
Creating a new client with Invoice Maker Pro.
5. Street Invoice Beta
Street Invoice Beta is, as the name implies, currently in beta. Even so, the application is solid and powerful. During the beta testing period, the app is free to use, which allows you to see just how much invoicing power you can have in your hands. Street Invoice Beta features: Invoice/bill on the spot, include PayPal link with invoice, create preview estimates, pull customer contact information from phone or tablet, email printed invoices/statements/receipts, print invoices on the go, wireless sync across all mobile and desktop devices, live back office reporting, and much more. With a clean interface (Figure I), you can quickly navigate through all the functions of the app.
The Street Invoice Beta main window.
One of best features of Street Invoice Beta is the ability to use it for multiple companies. Simply create as many companies as you need and then select which company to apply an invoice to in the Invoice Options (Figure J).
Making use of the multi-company feature.
If you're looking to take your small business on the go, fear not, there are plenty of apps to help you easily meet this challenge. To ensure invoicing and billing is efficient and accountable, give one of these Android apps a go – your clients and your company will thank you for it.
Jack Wallen is an award-winning writer for TechRepublic and Linux.com. He’s an avid promoter of open source and the voice of The Android Expert. For more news about Jack Wallen, visit his website jackwallen.com.