InvoraOwnware
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STAMPStonegate Advisors
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Related Products
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About
Self-hosted invoicing you own outright - no monthly fee, no cut of what you bill, no invoice cap. Estimates convert to invoices in one click, every document renders to a branded PDF, and clients open a public link without an account. Record part-payments and see what you are owed by client and by age.
Recurring invoices draft each cycle for you to review; a unique period stamp means the same month can never draft twice. Nothing is emailed automatically - every client email is a button you press, sent through your own SMTP, each attempt logged. Version 3.1 adds emailed invoices and reminders plus an .ics feed of due dates, all shipped switched off.
Also included: REST API with revocable keys, webhooks, an MCP endpoint for AI assistants, 2FA, OIDC sign-in, scheduled backups, audit log, dark mode. Plain PHP 8 + MySQL or SQLite, no framework, no build step. It never phones home.
A live demo runs on the product page - it opens signed in, with no signup and no password.
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About
Assess customer, channel and employee sentiment, significantly improve your ability to retain accounts, increase recurring revenue, and maximize customer lifetime value. View real-time external facing dashboards on every client account visualizing how well you are delivering on the needs of each client. View account manager dashboards, enabling you to see how well each account manager is performing across their book of business. Not only does STAMP provide the Net Promoter Score (NPS), but also uses our proprietary algorithm to calculate your STAMP Score to quickly show what clients are loyal or at risk of loss. Provides high-level summary of account performance on key indicators such as Net Promoter and Ease of Doing Business. An overall “customer sentiment” score is also provided, based on STAMP’s proprietary algorithm.
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Not Supported
On-Premises
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
Supported
iPad
Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Small businesses, freelancers and agencies that want to own their invoicing stack instead of renting SaaS
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Audience
Customer Success platform for companies wanting to onboard, educate, engage, and retain more users
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
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
$99 one-time
One-time purchase. Single licence $99 - one domain you own or operate, client work included. Extended licence $229 - as many domains as you own or operate, plus one installation handed over per client project. Full source code included. No subscriptions, no per-user fees, no cut of what you bill.
Free Version
Not Supported
Free Trial
Not Supported
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Pricing
No information available.
Free Version
Not Supported
Free Trial
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
Supported
In Person
Not Supported
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Company InformationOwnware
Founded: 2026
Slovakia
ownware.io/p/invora
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Company InformationStonegate Advisors
Founded: 2005
United States
www.stampcsm.com
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Alternatives |
Alternatives |
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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
Not Supported
Hourly Billing
Not Supported
Invoice History
Supported
Mobile Payments
Not Supported
Multi-Currency
Supported
Online Invoicing
Supported
Online Payments
Not Supported
Payment Processing
Not Supported
Project Billing
Not Supported
Recurring/Subscription Billing
Supported
Service Ticket Billing
Not Supported
Tax Calculator
Supported
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Customer Success Features
Account Alerts
Supported
Account Management
Supported
Communication Management
Supported
Customer Engagement
Not Supported
Customer Lifecycle Management
Supported
Health Score
Supported
Onboarding
Supported
Revenue Management
Not Supported
Usage Tracking / Analytics
Supported
Win / Loss Analysis
Supported
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Integrations
ChatGPT
Supported
Claude
Supported
Claude Duet
Supported
Claude for Legal
Supported
n8n
Supported
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Integrations
ChatGPT
Not Supported
Claude
Not Supported
Claude Duet
Not Supported
Claude for Legal
Not Supported
n8n
Not Supported
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