Invoice123

Install this free plugin into your WordPress website, and by linking it with Invoice123 (in Lithuanian – Sąskaita123), simplify your data management process. This tool is suitable for everyone conducting online business, regardless of the business format.
Invoice123 offers seamless invoice automation and customer management for efficient online accounting. The Invoice123 system has turned the old-fashioned manual invoicing method into a digital process that’s four times faster, available online 24/7.
We provide all the necessary tools, from various integrations to connections with accounting systems or e-commerce platforms, tax calculators and more.
Invoice123 is everything businesses of various types need to make their accounting easy and straightforward. We look forward to seeing you on our platform at www.invoice123.com

Manage sales and purchases, clients, inventory, and invoices. Everything business needs is in one system.

sylvestreui

Clielo turns any Custom Post Type into a full client service management system. Each post gets its own real-time chat, allowing clients and service providers to communicate directly, place orders, track progress and pay online.
Core Features (Free)
<ul>
<li>Real-time chat attached to any CPT post</li>
<li>Service packs and options management with pricing, delays and descriptions</li>
<li>Order workflow: pending → paid → started → completed → revision → accepted</li>
<li>Client account page with dashboard, orders, invoices and profile (<code>[clielo_my_account]</code> shortcode)</li>
<li>Admin dashboard with statistics and recent activity</li>
<li>In-app notification system</li>
<li>Customisable accent colour and chat button position</li>
<li>Fully responsive — mobile-friendly sidebar and chat</li>
<li>WP-Cron warning if DISABLE_WP_CRON is active</li>
</ul>
Premium Features (via Freemius)
<ul>
<li>Stripe Checkout integration for online payments (single, deposit, installments, monthly subscription)</li>
<li>Automatic PDF invoice generation</li>
<li>Email notifications (new order, status change, payment links, reminders)</li>
<li>Full email template editor with live preview</li>
<li>Todo list per order with progress tracking</li>
<li>Automatic payment link sending on due date (WP Cron)</li>
<li>Configurable payment reminders N days before due date</li>
<li>Unlimited services (free plan limited to 1)</li>
<li>Extra pages, express delivery and maintenance pricing options</li>
<li>Elementor Dynamic Tags integration</li>
</ul>
<h3>External Services</h3>
This plugin optionally connects to the following third-party services:
<h4>Stripe (premium only)</h4>
Used to process online payments via Stripe Checkout. Only active when Stripe is enabled by the site administrator and API keys are configured. 
* Service: https://stripe.com 
* Privacy Policy: https://stripe.com/privacy 
* Terms of Service: https://stripe.com/legal
<h4>Freemius</h4>
Used to manage plugin licensing, upgrades and trials. Activated on first use of the plugin admin area (opt-in required). 
* Service: https://freemius.com 
* Privacy Policy: https://freemius.com/privacy
No data is transmitted to external services in the free plan without explicit configuration by the site administrator.

Clielo

Turn any Custom Post Type into a complete client service platform — chat, orders, payments, invoices and notifications in one plugin.

Invoice123 vs Clielo