ViperJob
ViperJob is a quoting, invoicing and job-management app for tradespeople. It turns a spoken job description into priced quote lines using a saved price list, adds VAT and creates branded PDF quotes that customers can view and accept online. Users can track jobs from quote through payment, including deposits, part-payments, receipts and overdue invoices, and issue invoices with payment links. The app also includes customizable document templates, customer signatures, job photos, scheduling and reminders, job maps and mileage, VAT totals, per-job profit reporting and exports to accounting software and spreadsheets. Designed for trades such as handymen, locksmiths, electricians, plumbers, cleaners and installers, ViperJob supports offline work and is available for Android phones, tablets and Chromebooks.
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BillSend
BillSend makes it simple for tradespeople to send professional quotes and invoices — no accounting software required. Every document is automatically branded with your logo, colours, and contact details. Quotes convert to invoices in one click, with no duplicate data entry.
Customers approve quotes via a shareable link — no login needed — and pay directly through the invoice using Stripe. A pipeline view shows the status of every quote and invoice: sent, viewed, approved, or overdue, with automated reminders so you're not chasing payments manually.
Works across mobile and desktop, supports multiple currencies for international clients, and includes reusable templates for repeat jobs. A free invoice generator and quote calculator are also available without creating an account.
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Coretool
Coretool is a browser-based invoicing application for German businesses, freelancers, sole traders, tradespeople, and small service businesses. Users can create and manage quotes and invoices, including XRechnung and ZUGFeRD e-invoices, track customers, send payment reminders, and organize appointments. The app supports GiroCode QR codes, digital quote signatures, and validation of e-invoice documents through its REST API. API-based workflows can connect with automation tools such as Make, Zapier, and n8n; availability of some platform-specific modules may depend on approval. Calendar feeds can be added to Google, Apple, or Outlook calendars. The optional Kalkulations-Assistent supports project estimates, material and labor calculations, and quote creation. Coretool runs in a web browser without local installation. Its free plan allows three invoices per month; Solo costs €9/month plus VAT and can be canceled monthly.
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Vocalys
Vocalys is an Android app for independent tradespeople and field-service professionals who prepare customer quotes and invoices on site. Users dictate job details, review the structured draft, and edit descriptions, quantities, prices, and taxes before confirming. The app can scan supplier price labels, apply a chosen margin, and add materials to a quote. Users can include customer, business, payment, and deposit details, then share PDFs or send quotes for electronic signature through AgoSign. Accepted quotes can be converted into invoices; documents can be organized and exported for an accountant. Some viewing and editing work offline, while dictation, scanning, synchronization, sending, and remote signature need an internet connection. Country settings adapt document formats, currency, and tax fields. Vocalys is designed for plumbers, electricians, landscapers, service technicians, and other independent field professionals.
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