Best invoicing and estimate apps for contractors (2026)

Do contractors need an invoicing app or field service software?

An invoicing app sends estimates, invoices and payment links, and it is the cheapest way to bill like a real business. Field service software does the same, but the invoice is built from a job that was already booked, scheduled and done in the same app. If you work alone and keep the schedule in your head, an invoicing app may be all you need.

• An invoicing app (Invoice Simple, Invoice2go, Square Invoices) fits a solo contractor who quotes on site, does the work and bills the same day. Plans start under $10 a month, and Square has a free one.
• Accounting software (QuickBooks Online) fits an owner who wants invoices to land straight in the books and has an accountant working from the same file.
• A field service app (Jobber, Claver, and Joist on its Run plan) fits once you juggle more jobs than you can remember, send a crew, or take online bookings. The quote, the visit, the invoice and the payment all sit on one customer record.

How many invoices can you send on each plan?

The cheapest invoicing plans cap how many invoices you can send each month, and card fees often drop as you move up. The table shows the limits and fees each vendor publishes for its standalone invoicing plans.

From each vendor's public pricing page, checked September 27, 2026. On annual billing, Invoice2go caps invoices per year instead: 30 on Starter and 100 on Professional.

How we compared these tools

We compared published prices, plan limits and features on each vendor's own site on September 27, 2026. We did not test the apps hands-on or survey their users, so nothing here ranks tools on ease of use or support. Where a vendor doesn't publish a figure, the table says so.

The seven tools are the invoicing apps, accounting software and field service apps contractors most often weigh for billing. Each profile uses the vendor's own plan names and descriptions. Claver's plan details come from Claver's own product.

What does each invoicing app offer?

Each profile covers what the tool is, who it suits, what it costs and one real tradeoff. Every price is the vendor's own published figure, with promotions marked where the vendor was running one.

Which invoicing app should a contractor choose?

Choose by how many invoices you send and whether you also need to schedule the work. A solo contractor billing a few jobs a month can pay nothing or under $10. Once you send invoices every day or run a crew, compare the plan with unlimited invoices against a field service app that also books and schedules.

• A few invoices a month. Square Free costs nothing but card fees. Invoice Simple Essentials ($6.99/mo) allows 3 invoices a month, Invoice2go Starter ($7.99/mo) 2, and Joist Basics ($10/mo) 5 documents.
• A solo contractor billing every week. Joist Pro ($17/mo) and Invoice Simple Premium ($21.99/mo) have no invoice cap. Claver Starter ($19/mo, 2 users) also adds scheduling, online booking and recurring plans.
• A crew with a schedule to run. Claver Crew is $39/mo for 8 users with dispatch, e-signatures and progress invoicing. Jobber Connect is $199/mo for up to 5 users ($149/mo billed annually).
• Big jobs paid in stages. Look for deposits, change orders and milestone billing: Claver has progress invoicing on Crew, Square Plus has payment schedules, and Joist Elite has change orders.
• Books first. If your accountant lives in QuickBooks Online, invoice from it or from a field service app that syncs with it.

For total cost across tools, see our field service software pricing guide and the Jobber vs QuickBooks comparison.

What should a contractor look for in an invoicing app?

Look past the entry price to the invoice cap, the card fees and whether estimates turn into invoices in one step. Then check deposits and milestone payments for bigger jobs, QuickBooks sync, and whether the app can schedule the work too.

• Invoice caps. Several cheap plans allow 2 to 10 invoices a month. Count a busy month, not a slow one.
• Card fees. A lower fee on a higher plan can pay for itself on big invoices. Some apps also let you pass the card fee to the customer where state law allows.
• Estimate to invoice in one step. An approved estimate should become the invoice without retyping, ideally with the customer's signature on file.
• Deposits and milestone payments. For jobs over a few thousand dollars, collect a deposit and bill in stages.
• Recurring invoices. Maintenance customers should be billed on a schedule automatically.
• QuickBooks sync. Check which plan includes it, so payments land in the books without double entry.
• Scheduling. If you'll need to book and dispatch jobs within a year, starting in an app that does both saves a switch later.