QuagMartello Systems
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Related Products
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About
Duevero is simple invoicing and profit-tracking software for freelancers, consultants, contractors, and solo service businesses. Create estimates and invoices, manage clients, track expenses, monitor invoiced, collected, spent, and profit totals, follow up on overdue work, and accept eligible invoice payments through your own connected Square account.
The free Basic plan includes up to 10 active clients, 10 invoices per month, 5 estimates per month, one workspace, expense tracking, and raw CSV exports.
Duevero Pro is $12/month and adds unlimited clients and invoices, 2 workspaces, recurring invoice templates, reports, time tracking, formatted and accountant-ready exports, an overdue and reminders workspace, and branded invoices with your logo.
Duevero is designed to be lighter and easier to use than a full accounting suite, giving independent service businesses one straightforward place to manage the client-money workflow from estimate to invoice to payment and profit.
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About
Quag is a browser-based work tracker for gig workers, freelancers, brand ambassadors, and independent contractors who manage work across multiple employers, clients, or platforms. It brings jobs, companies, contacts, earnings, expenses, mileage, documents, and invoices into one workspace. Users can move jobs through lead, applied, confirmed, done, and paid stages; monitor outstanding and overdue amounts; schedule work on a calendar; and save work-source and contact details. Quag records expenses and mileage, organizes receipts and documents, and estimates a quarterly tax set-aside from logged income and expenses; the estimate is not a tax filing. It also supports CSV earnings imports, PDF invoice creation and email delivery, invoice status tracking, document-expiry alerts, and a home-screen progressive web app for phone use. A free tier is available, while paid plans add expanded history, more sources and storage, invoicing, and other features.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Freelancers, independent consultants, contractors, designers, photographers, web designers, cleaners, and other solo or small service businesses that invoice clients and want a simpler way to manage estimates, invoices, expenses, payments, overdue follow-up, and profit.
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Audience
Freelancers, gig workers, brand ambassadors, 1099 contractors, and others managing work and income from multiple sources.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$12/month
Free Basic plan available. Pro is $12/month. Basic includes up to 10 active clients, 10 invoices/month, 5 estimates/month, 1 workspace, expense tracking, and raw CSV exports. Pro adds unlimited clients and invoices, 2 workspaces, recurring invoice templates, reports, time tracking, formatted/accountant-ready exports, overdue/reminders workspace, and branded invoices.
Free Version
Supported
Free Trial
Not Supported
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Pricing
$0
The free plan costs $0 and includes up to two sources, 30 days of history, and 100 MB of storage. Pro costs $6.99/month for the first 20 paying customers, who keep that rate; the regular monthly price is $9.99. Pro Annual costs $55/year for the first 20 customers; the regular annual price is $79. Quag AI costs $20/month, or $200/year with annual billing. Paid plans renew automatically and can be canceled at any time.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationDuevero
Founded: 2026
United States
duevero.com
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Company InformationMartello Systems
Founded: 2026
United States
quag.app
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Categories |
Categories |
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Billing and Invoicing Features
Billing Portal
Not Supported
Contact Database
Supported
Contingency Billing
Not Supported
Customer Portal
Not Supported
Customizable Invoices
Supported
Dunning Management
Supported
Hourly Billing
Supported
Invoice History
Supported
Mobile Payments
Not Supported
Multi-Currency
Not Supported
Online Invoicing
Supported
Online Payments
Supported
Payment Processing
Supported
Project Billing
Not Supported
Recurring/Subscription Billing
Supported
Service Ticket Billing
Not Supported
Tax Calculator
Not Supported
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