Search Results for "billing app"
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Showing 34 open source projects for "billing app"
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1
Simple Phone Billing
A simple phone billing console-based app (C language)
This simple console-based programme will launch an imaginary phone billing system. It is fully modularized with plain C functions to: 1) store number of calls to be billed (processed), 2) know call types to apply call type rate later, 3) know and act upon to apply extra charges, 4) store call duration and finally report a simple phone bill. -
2
RevenueCat
In-app purchases and subscriptions made easy
RevenueCat is a powerful, reliable, and free-to-use in-app purchase server with cross-platform support. Our open-source framework provides a backend and a wrapper around StoreKit and Google Play Billing to make implementing in-app purchases and subscriptions easy. Send enriched purchase events to analytics and attribution tools with our easy integrations. Fetch products, make purchases, and check subscription status with our native SDKs. -
3
billing-animal-hospital
Demo Invoicing APP for Veterinarian Medical Office
This is an sample Invoicing program written in vba and MS-Access. It is for a small, or personal, Vets Medical Office. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code or print reports (part of Office 365). The program processes Invoicing, Appointments, and Quotes, and produces reports for A/R,... -
4
Wallos
Open-source, self-hostable personal subscription tracker
...It focuses on turning subscriptions into a clear, organized view of your financial commitments, helping you spot waste, anticipate upcoming charges, and plan your budget with fewer surprises. The app supports subscription management with due dates and payment schedules so you can keep track of what’s active and when it renews. To make analysis more meaningful, Wallos includes category management so you can group expenses and identify spending patterns over time. It also supports multiple currencies, which is especially useful for people paying for services in different billing regions or traveling between countries. -
Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
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5
next-forge
Production-grade Turborepo template for Next.js apps
A mono repo template designed to have everything you need to build your new SaaS app as quickly as possible. Authentication, billing, analytics, SEO, database ORM and more. Create and preview email templates with a React-based email library. A twblocks website template with a type-safe blog, bulletproof SEO, and legal pages, powered by Content Collections. Simple, beautiful out of the box, and easy-to-maintain documentation. -
6
Invoice Ninja
Free and Open Source Invoicing, Expenses & Time-Tracking
Invoice Ninja is a free and open source invoicing, expenses and time-tracking app built with Laravel and Flutter. It offers a plethora of great features, including custom branded invoice design, recurring invoicing and auto-bill clients, real-time quote creation and custom proposals, expense reporting and so much more! Invoice Ninja is also capable of handling online payments from more than 40 payment gateways, including Stripe, PayPal and WePay. It also accepts payments using credit cards,... -
7
solidtime
Modern open-source time-tracking app
solidtime is a modern open-source time-tracking application built for freelancers, agencies, and teams that need structure beyond a simple timer. It centers on fast time entry and tracking, then layers in the operational pieces that make time data useful, such as projects, tasks, and clients. It supports billable rates at multiple levels, enabling realistic billing setups that differ by project, member, or organization. The product is organized around multi-organization support, which is... -
8
CoAI.Dev
Next Generation AI One-Stop Internationalization Solution
CoAI.Dev is an open-source “one-stop” AIGC web application that combines a modern chat-first UI with a full backend for running, managing, and monetizing multiple AI model providers from one place. It is designed to support a wide range of LLM and image-generation backends (including OpenAI-compatible endpoints), while also providing an admin dashboard for user, subscription, and pricing controls, so it can be operated as a self-hosted AI product rather than just a personal playground. The... -
9
Free Invoicing Software for Auto Shops
An Invoicing program for Auto Shops written in vba and MS-Access.
...The program processes Invoicing, Appointments, and Quotes, and produces reports for A/R, Inventory, History and Accounting Purposes. See the readme file, and manual for greatest use of this App. This is an upgrade to MSAut1a. The application now has an Appointment feature. Find this and a General Billing program at: https://gotomarcus.com/currentswms/index.php -
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10
Free Invoicing Software for 2025
Simple Invoicing program for Desktop written in vba and Access
This is a learning/sample/functional Invoicing program written in vba and MS-Access. It is for a small, or personal, business. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code or print reports (part of Office 365). The program processes Invoicing and Quotes, and produces reports for A/R,... -
11
Invoiso
Free Invoice & Billing Software for Windows & Linux
Free offline invoice software for Windows and Linux. Create professional PDF invoices, manage clients and products - no internet, no subscription, no account needed. Invoiso is a free, open-source desktop invoicing app for small businesses, shops, and freelancers on Windows and Linux. All data stays on your device — no internet required, ever. Default Login: Username: admin Password: admin You will be prompted to change the password on first login. -
12
e-Bridge Hotel
Hotel Property Management with OTA channel support.
e-Bridge Hotel is a property management software. Supports Open Travel Alliance (OTA) specification. OOB support for OTP login and MEPR500 passport scanner. Subscription available for Expedia or Agoda Channel, OBE, Houskeeping, Mifare. Line & Telegram IM Referral program $$ for Cloud and Lite subscriptions. e-Bridge Hotel - PMS, OBE , Guest web pages Housekpping app https://play.google.com/store/apps/details?id=com.e_bridgedirect.www.housekeeping Web server requires: *... -
13
Easy Database Forms For All
Create Web Based Forms Quickly, With In-built DB, For All Your Teams
Please watch the video till 18m:00s / screenshots below for easy installation steps. This video is taken from my other project, with many similarities and some naming differences. After installation, login to the Administrator Page with : Username : root Password : change_this and look at the team1 database and the sample_table in it, from all aspects. You can now create your own tables/forms. Also, login into the team1 user page ( from homepage ) with : Username : team1... -
14
php-billing-app
A basic PHP/MySQL/HTML Billing APP. Meant for developers learning.
Here is PHP/MySQL/HTML code that is a sample Entry Level Billing APP. It is Free, and mostly for learning purposes. You can install on a Windows or linux server, and look at the PHP code files on your PC. -
15
Du hast beispielsweise einen Online Shop und möchtest deine Bestellungen direkt abspeichern und sie jederzeit abrufen? Diese Bestellungs App (kompatibel mit Linux, Mac und Windows) gibt dir die Möglichkeit deine Bestellungen abzuspeichern, eine Rechnung zu hinterlegen und den aktuellen Status der Bestellung zu bestimmen. Neu hinzugefügt: Die Möglichkeit an beliebige Nutzer wo ein Kontakt (Email) hinterlegt wurde eine Mail zu senden. Ebenfalls an alle gleichzeitig. Voraussetzung...
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16
Laravel Shopify App
A full-featured Laravel package for aiding in Shopify App development
A full-featured Laravel package for aiding in Shopify App development, similar to Shopify_app for Rails. Works for Laravel 7 and up. -
17
Earner
Display earnings in real time and log work to Excel
Windows app that display your earnings in real time and log work on user specified tasks to Excel. -
18
billing-equipment-repair
A billing APP for Equipment Sales/Repair Shops written in MS-Access.
If you are selling and/or repairing equipment you want to track (like computers, tractors, boats, snowmobiles, TV's, dishwashers or other things like that), this might be a good app for you. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code (part of Office 365). The program processes Invoicing,... -
19
Crater
Free & Open Source Invoice App for Freelancers & Small Businesses
Crater is an open-source web & mobile invoicing app made especially for freelancers and small businesses. It's the complete invoicing solution you need, allowing you to track expenses and payments, calculate taxes, and create estimates and invoices. As both a web and a mobile app, Crater allows you to manage your invoices and keep track of everything even on the go. Crater's web application is made with Laravel & VueJS, while the mobile apps are built using React Native. Crater is a... -
20
Buffet Box
Most Advance online restaurant menu, food delivery system
Most Advance online restaurant menus, food delivery systems, online restaurant menus, free online restaurant menu, free online restaurant menu apps, and online restaurant menu service providers. Most Advanced POS Billing & Invoicing Software that can perfectly fit your whole sale & Retail Business. -
21
playSMS
Free and Open Source SMS Gateway Software. Not A Free SMS Service.
playSMS is a free and open source SMS management software, a web interface for SMS gateways and bulk SMS services. -
22
lllumine App
Illumine helps you simplify administration and improve planning.
Illumine a one-stop technology platform for Early education which caters the needs of Parents, Teachers & Administrators. Our key focus areas are Parent Engagement, Child development, Operational efficiency. Illumine will save you time, money and build parent engagement which is proven to increase your enrollments. Illumine has everything that you need: SIGN IN-OUT / ATTENDANCE, STAFF TIMECARD, DAILY SHEETS/REPORTS, LEARNING, PHOTOS, VIDEOS, MESSAGING, BILLING and much more. Who’s... -
23
cg-invoice
Invoice and office utilities program for customer managment
cg-invoice is a HTML5, Bootstrap, PDO simple yet productive way to write invoices and then retrieve the client data in more than one way. Invoicing invoices from anywhere online. View table or you can reprint the invoice as it was originally written. Business management for quotes or estimates. Contacts and vendors listing tabs for easy search. Office or personal tools to track customers, inventory, mailing lists, company phone numbers with a scheduler calendar included. Scripts written... -
24
Excel Invoice
Excel Invoice windows desktop app template
The Invoice template enables you to manage your client details, Product/Service details, Multiples V.A.T rates and Discounts. Besides making Invoices, it will generate a summary of your debtors/accounts receivable and you can also generate Account Statements for your clients. -
25
Lite Billing
Intuitive quote, delivery note, invoice, payments management app
Lite Billing is a easy to use free and open source web application meant to help manage & create quotes, delivery notes, invoices in a simple way. Please see the online demo here http://litebilling.maithamanyala.com Email maithamanyala@gmail.com
