Best Contractor Estimate, Work Order & Subcontractor Invoice Apps (2026)

Short answer: The best contractor estimate, work order, and invoice apps in 2026 for solo tradespeople, handymen, plumbers, electricians, and subcontractors are led by Keel ($0/month on iPhone, iPad, and iCloud Web Studio), which provides unlimited quotes, contractor work orders, change orders, PDF subcontractor invoices, receipt OCR, and tax mileage logs with zero monthly subscription and no bank connection. By comparison, Invoice Simple caps free users at 3 invoices ($6.99–$19.99/mo), Joist charges $14–$38/mo without mileage or tax packs, and Jobber, Housecall Pro, ServiceM8, and Tradify cost $39–$169+/mo for multi-truck dispatch.

⚡ Instant Contractor Estimate, Work Order & Subcontractor Invoice Toolkit ($0/mo + 🔗 Embed / CSV Template + 5 Free Saves): Build an itemized bid, work order, or invoice in the Free Contractor Invoice & Estimate Generator, export via 🔗 Embed / CSV Template, save up to 5 free quotes, work orders & invoices in your iCloud Web Workspace (5 Free Saves), explore the Quotes & Estimates App Store Edition, or Download Keel on the App Store ($0/mo, Unlimited Quotes & Invoices).

When an independent contractor, subcontractor, handyman, plumber, sparkie, or residential builder searches for a field app, they usually get pushed toward one of two frustrating extremes:

1. “Free” invoice makers that lock your 4th invoice behind a paywall: Apps like Invoice Simple or Invoice2go advertise a free download, let you type three estimates or invoices, and then demand $84 to $240+/year just to send your next bill—while still offering zero mileage logbook and zero tax-return preparation.
2. $600 to $2,000/year multi-crew dispatch suites: Platforms like Jobber, Housecall Pro, Contractor Foreman, ServiceM8, Tradify, and Fergus are built for 5-to-20-truck companies that need GPS fleet tracking, call-center routing, and QuickBooks/Xero cloud syncing. If you are a one-person or two-person operation, you end up paying $50 to $150/month for dispatch calendars you never touch.

Below is the 2026 field comparison of the best contractor estimate, work order, and subcontractor invoice apps across the US, UK, Australia, New Zealand, and Canada—showing exactly what each app includes, what it costs after introductory promos expire, and which tool fits a solo contractor best.

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How do the best contractor estimate, work order & invoice apps compare in 2026?

Category Winner & App	Monthly Price (2026)	Free Estimate & Invoice Limit	Contractor Work Orders & Change Orders?	Receipt Camera + Tax Mileage Logbook Included?	Regional Tax Rules (Sales Tax, CIS, ABN/BAS, GST/HST/QST, IRD)
#1 Best Overall for Solo Contractors & Subcontractors: Keel	$0/mo Free (Optional $49.99 5-Folder Tax Pack or $299.99 one-time Lifetime)	Unlimited free daily estimates, work orders & PDF invoices	Yes — 1-tap Quote $\to$ Work Order $\to$ Invoice + signed variations	Yes — On-device receipt OCR + IRS/HMRC/ATO/IRD/CRA mileage logbook	All 5 Markets: US 1099/Sales Tax, UK CIS 20%/30% & SA103, AU ABN/BAS, NZ GST/IR3, CA GST/HST/QST
#2 Best Known Trade Estimate App: Joist	$14 to $38+/mo USD (plus payment processing fees)	Limited free trial / feature locks on client exports	Yes, estimates, change orders & invoices	Basic receipt photo attachment; no tax mileage logbook	Basic tax % line; requires QuickBooks sync for full tax accounting
#3 Best Simple Template App: Invoice Simple	$6.99 to $19.99+/mo USD	Strict 3-invoice lifetime free limit	Estimates & invoices (no dedicated work order / tax pack)	Basic expense list on higher tiers; no statutory mileage logbook	Basic single tax rate
#4 Best for Multi-Crew US/CA Dispatch: Jobber	$39 to $199+/mo USD	14-day trial only	Yes, quotes, work orders, dispatch & invoicing	No built-in IRS Schedule C / CRA T2125 tax pack or mileage logbook	Syncs to QuickBooks Online ($30+/mo extra)
#5 Best for Multi-Tech Home Services: Housecall Pro	$59 to $169+/mo USD	14-day trial only	Yes, dispatch board, estimates & invoices	No standalone tax return pack or mileage logbook	Syncs to QuickBooks Online
#6 Best for AU/NZ/UK Multi-Van Dispatch: ServiceM8 / Tradify / Fergus	$35 to $79+/mo AUD/NZD/GBP per user	14-day trial only	Yes, job cards, quotes & variations	Requires Xero or MYOB ($35–$78/mo extra) for BAS/GST/IR3/SA103	Built as front-end add-ons to Xero/MYOB
#7 Best for Commercial GC Project Management: Contractor Foreman	$49 to $125+/mo USD	30-day trial	Yes, RFIs, submittals, work orders & AIA-style billing	Heavy construction PM focus; not a pocket tax/mileage ledger	Syncs to QuickBooks

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Which app wins for each trade and contractor workflow?

1. Best for solo contractors, subcontractors, handymen & tradies ($0/mo): Keel

If you work for yourself—whether as a general contractor, residential remodeler, handyman, plumber, electrician, HVAC tech, painter, drywaller, landscaper, roofer, or CIS/ABN/NZBN subcontractor—Keel (Keel: Invoice Generator) replaces three separate subscriptions (an estimating app, a receipt scanner, and a mileage tracker) in a single offline-capable iPhone/iPad app and iCloud Web Workspace.

• 1-Tap Estimate $\to$ Contractor Work Order $\to$ Invoice Flow: Write an itemized estimate in the driveway separating trade labor from materials. When the customer approves, convert it into a contractor work order (without showing internal cost markups to site helpers if needed) and then into a numbered deposit invoice or final PDF invoice in one tap.
• Built for Subcontractor Billing Across All 5 Countries:
  • United States (1099-NEC & State Contractor Rules): Prints your state contractor license number (CSLB, DBPR, TDLR, ROC, DORA), separates taxable materials from exempt installation labor, and tracks IRS Schedule C expenses plus 72.5¢ / 76¢ per mile business driving.
  • United Kingdom (CIS Subcontractor Invoice & HMRC SA103): Automatically calculates 20% (or 30%) CIS labour deductions while leaving materials at 100% gross, handles Domestic Reverse Charge VAT, and logs 45p / 25p per mile HMRC mileage. See our UK CIS subcontractor invoice guide.
  • Australia (ABN Tax Invoice & Tradie Quote & Invoice): Validates 11-digit ABN headers so commercial payers never withhold 47% No-ABN tax, splits 10% GST (1/11th) for quarterly Simpler BAS (G1, 1A, 1B), photographs faded Bunnings/Reece thermal dockets, and logs 88c / 91c per km or 12-week ATO logbook trips. See Australia quoting app for tradies.
  • New Zealand (NZBN / GST Taxable Supply Information & Kiwi Tradie Invoice): Calculates 15% GST (3/23 fraction), tracks 20% Schedular Payment (WT) subcontractor deductions under IR330C, and logs IRD Tier 1 ($1.17/km) & Tier 2 vehicle kilometres with 0% cut of your income (saving $1,000–$1,500/year compared to Hnry’s 1% fee). See NZ invoice and quote apps.
  • Canada & Québec (T2125, GST/HST/PST & Soumission Gratuite Entrepreneur): Handles Ontario 13% HST, Alberta 5% GST, BC 5% GST + 7% PST material rules, WSIB/WorkSafeBC/CNESST clearance notes, and bilingual Québec TPS 5% + TVQ 9,975% (14,975%) devis and facture travailleur autonome.

2. Joist vs Keel: When to switch from Joist

Joist became popular because it let contractors build clean estimates on an iPad or iPhone. However, since moving its core workflow behind $14 to $38+/month subscriptions and payment-processing upsells, solo contractors run into two major gaps:

1. Joist is not a bookkeeping or mileage app: Even if you pay $300+/year for Joist Pro/Elite, you still have zero IRS/ATO/CRA/HMRC mileage logbook and zero Schedule C / T2125 / SA103 / BAS tax return pack—forcing you to buy QuickBooks, Xero, or Driversnote on top.
2. PlanGrid-style fast switching: In Keel, your client list and itemized price memory stay on-device at $0/month, and every paid invoice automatically feeds your job profit and tax reserve. Read our full Joist app alternative guide for contractors and Keel vs Joist.

3. Invoice Simple vs Keel: Avoiding the 3-invoice paywall

Invoice Simple is easy to use for a first test invoice, but its free trial stops after 3 documents, followed by $6.99 to $19.99/month plans capped by monthly invoice counts on lower tiers. If you send 10 to 40 estimates and invoices a month across handyman, plumbing, electrical, or lawn care jobs, Keel gives you unlimited daily estimates and invoices for $0/month plus full receipt OCR and mileage tracking. See our Invoice Simple alternative guide and Keel vs Invoice Simple.

4. Jobber, Housecall Pro, ServiceM8 & Tradify vs Keel: Multi-truck dispatch vs solo speed

If you manage 4 or more vans with a full-time office dispatcher assigning routes and live GPS technician arrival texts, Jobber (US/CA), Housecall Pro (US), ServiceM8 (AU/UK/NZ), Tradify (NZ/AU/UK), or Fergus (NZ/AU) earn their $50 to $199/month price tag—and you will typically pair them with QuickBooks Online or Xero ($35–$75/month extra) for accounting.

If you are a 1-to-2 person contractor or subcontractor, however, paying $90 to $250/month combined for dispatch software plus cloud accounting is overkill. Keel gives you the entire Quote $\to$ Work Order $\to$ Invoice $\to$ Receipt Scan $\to$ Mileage Log $\to$ Tax Pack loop on your iPhone in 30 seconds at $0/month. See Keel vs Jobber, Keel vs Housecall Pro, Keel vs ServiceM8, and Keel vs Tradify.

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What essential features must every contractor estimate and work order include in 2026?

Regardless of which app you choose, make sure every estimate, work order, and subcontractor invoice you send includes these five protective elements:

1. Separated Labor and Material Lines (or Clear Lump-Sum Scope): Separating labor from materials protects your margin when supply-house lumber, copper, or PVC prices jump and ensures accurate sales tax, UK CIS 20% deduction, or BC/SK PST treatment.
2. Deposit & Progress Draw Schedule: State the exact deposit required before materials are ordered (for example, 30%–50% upfront on custom builds, or within statutory deposit caps such as California CSLB’s 10% / $1,000 rule or Alberta’s Prepaid Contracting license rules).
3. Written Change-Order / Variation Clause: Never perform hidden-damage repairs or verbal extras without tapping “Add Variation / Change Order” so the revised total is approved before the work is closed out.
4. License, Insurance & Tax Registration Header: Print your state contractor license, RBQ/OBC/NSAA/QBCC/LBP credential, ABN/NZBN, GST/HST/QST number, or UK UTR/VAT Reverse Charge notice directly in the PDF header.
5. Job-Linked Receipt & Mileage Trail: Attach the supply-yard receipt photo and your site-visit mileage directly to that job so you know your true net profit after materials and fuel.

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How do you convert an estimate into a work order and subcontractor invoice in one tap?

In Keel, you never have to re-type customer details or line items between quoting, field execution, and final billing:

1. Draft the Estimate: Select your client, add itemized labor and material lines from your saved price memory, and send a clean PDF quote by text, email, WhatsApp, or AirDrop.
2. Generate the Contractor Work Order: Once approved, tap to issue the field work order showing scope, site address, and scheduled start date—plus any signed mid-job change orders.
3. Issue the Deposit or Final Subcontractor Invoice: Convert the work order into a sequential PDF invoice with automatic US sales tax, UK CIS 20% deduction, Australian ABN/GST, New Zealand 15% GST (3/23), or Canadian GST/HST/QST (TPS/TVQ 14.975%).

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How do contractor invoice apps handle tax deductions and mileage logs?

Most standalone quoting apps (including Joist and Invoice Simple) stop the moment the invoice PDF is sent—leaving you with a shoebox of faded supply-house receipts and no mileage log when tax season arrives.

In Keel, every job automatically links to your on-device receipt scanner and statutory mileage logbook (IRS Publication 463, HMRC SA103, CRA T2125, ATO Simpler BAS, and IRD IR3), so your year-end 5-Folder Statutory Tax Pack is ready in one tap without paying for QuickBooks, Xero, or Driversnote.

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Frequently asked questions

What is the best free app for contractor estimates, work orders, and invoices?

Keel (Keel: Invoice Generator) is the best free all-in-one app for solo contractors and subcontractors because its $0/month free tier includes unlimited daily estimates, work orders, change orders, PDF invoices, on-device receipt scanning, and mileage tracking—with no 3-invoice trial cap and no bank connection required. You can also create and save up to 5 free records in the browser-based iCloud Web Workspace.

How is a contractor work order different from an estimate or an invoice?

An estimate (or quote) is the proposed scope and price sent to the customer for approval before work begins. A contractor work order authorizes the specific field tasks, site address, materials, and schedule once the job is approved (or dispatches a service call before final quantities are measured). An invoice is the final payment demand issued once the work stage or job is completed. In Keel, a single job record flows seamlessly from Estimate to Work Order to Invoice without re-typing a single line item.

What is the best subcontractor invoice app for US 1099, UK CIS, and AU/NZ ABN/NZBN tradies?

Keel is purpose-built for subcontractors across all five markets: it handles US 1099-NEC gross billing and Schedule C write-offs, UK Construction Industry Scheme (CIS) invoices (automatically splitting 100% gross materials from 20%/30% CIS-deductible labour and Domestic Reverse Charge VAT), Australian ABN Tax Invoices (10% GST and Simpler BAS), New Zealand GST & Schedular Payment (WT) invoices, and Canadian GST/HST/QST subcontractor billing.

Why do most free invoice apps stop working after 3 invoices?

Apps like Invoice Simple and Invoice2go use a “3-document paywall” model: they rank for “free invoice app” searches, wait until you have entered your logo and first three clients, and then block your fourth invoice unless you subscribe for $84 to $240+/year. Keel’s core daily workflow—sending quotes, work orders, and invoices, snapping receipts, and logging mileage—remains free ($0/month) with no document count limit.

Do I need Jobber or ServiceM8 if I work by myself?

Usually no. Jobber, Housecall Pro, ServiceM8, and Tradify are designed to coordinate multiple vans, office dispatchers, and external cloud accounting subscriptions (QuickBooks or Xero). If you are a solo contractor or 1-to-2 person crew, Keel gives you estimates, work orders, invoices, receipt OCR, mileage logs, and your year-end tax pack in one pocket app without paying $1,000+/year for fleet dispatch software.

Can I use Keel on both my iPhone in the truck and my computer at home?

Yes. Keel runs natively on iPhone and iPad and syncs privately through your own Apple iCloud account with the Keel iCloud Web Studio in any desktop browser—so you can draft a multi-line estimate on your laptop at night and send or invoice it from your iPhone on the jobsite the next morning.

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