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Job Title: C# WinForms Developer to Implement Licensing + 30‑Day Trial and WooCommerce License Integration Project Overview I have an existing Windows desktop application built with C# WinForms (.NET). I want to: Offer a 30‑day free trial. After 30 days, show a license key / activation window and block full use until a valid license is entered. Sell license keys online using a WordPress site with WooCommerce and a license manager plugin. I’m looking for an experienced developer to implement the trial and licensing logic in my C# app and integrate it with WooCommerce license generation. Scope of Work 1. Licensing Design & Setup Review and work with (or recommend) a WooCommerce license manager plugin (for example: WooCommerce Software Add‑On, WooCommerce API Manager, or a similar license manager I can purchase). Configure in WooCommerce: The product for my Windows app Automatic license key generation on purchase License email to the customer (key + brief activation instructions) You may advise me which exact plugin to use; I’ll buy/provide it. 2. Trial & License Logic in the C# WinForms App Provide C# WinForms (.NET) code that I can integrate to: On first run: start and store a 30‑day trial. On app startup: If trial active → allow normal use; optionally show “X days remaining”. If trial expired and no valid license → show a modal activation window. Activation window: Field for license key “Activate” button that: Calls the licensing API (from WooCommerce license manager or related service) or validates according to the plugin’s scheme On success: store activation locally, unlock full functionality On failure: show clear error (invalid key, expired, already used, etc.) Requirements for the code: Implemented in C# WinForms; compatible with my .NET target (I’ll specify: e.g., .NET Framework 4.8 or .NET 6). Well‑structured and commented, with a simple public interface such as: [login to view URL]() [login to view URL]() Designed with online activation in mind (license checked against WooCommerce/plugin API). 3. WordPress + WooCommerce Setup (Basic) Set up or configure a WordPress site (I will provide hosting and access). Install and configure: WooCommerce Chosen license manager plugin Payment gateway(s): Stripe and/ PayPal Create: A simple product page for the application (I can provide text and images; you structure it). Ensure full flow works: Customer visits product page → purchases → payment succeeds → WooCommerce generates a license key → key is included in the order confirmation email and visible on the thank‑you page. 4. Documentation & Handover Provide a short document that covers: Which license manager plugin and configuration you used. How the trial and license check works in the app: Where in the code to call the license check on startup. How/where trial data and license data are stored locally. How to: Create/edit products and pricing in WooCommerce. View customer licenses. Manually generate/revoke a license if needed. Change the trial length (e.g., from 30 days to 14 days). A brief recorded walkthrough or short call is a plus. Technical Environment App: C# WinForms, .NET (I will specify exact version when we start). OS: Windows 7 and newer. Site: WordPress + WooCommerce (new install on my hosting). Payments: Prefer Stripe and/or PayPal. Freelancer Requirements Solid experience with: C# / WinForms / .NET Implementing software licensing / activation for desktop apps WordPress + WooCommerce configuration Bonus: specific experience with WooCommerce license manager plugins or software license APIs. Please include in your proposal: Which WooCommerce license plugin(s) you recommend and why. A short description of at least one similar project you’ve done (desktop app + licensing and/or WooCommerce integration). Your: Estimated timeline (in days/weeks) Fixed price quote Any recurring costs I should expect (license manager plugin, other services). Budget I prefer a fixed price project. Budget range: USD $400 – $900, depending on: Your experience with C# + WooCommerce licensing How complete the integration and documentation are Please propose your fixed price and timeline within or close to this range.
Project ID: 40176084
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101 freelancers are bidding on average $492 USD for this job

Hello, I will implement a solid 30-day trial, license activation, and WooCommerce integration for your C# WinForms app. My plan includes a lightweight LicenseManager with CheckStatus() and ShowActivationDialogIfNeeded(), storing trial and license state locally and invoking online validation against the license API. On first run, the app starts a 30-day trial; on startup, I’ll show remaining days when active; after expiry, a modal activation window appears to enter a license key. Activation calls the chosen WooCommerce license API to verify and unlock full features on success. I’ll configure WooCommerce to auto-generate license keys on purchase, email keys, and display them on the thank-you page, using a plugin such as WooCommerce Software Add-On or API Manager as you prefer. I’ll provide clear documentation and a basic handover, including how to adjust trial length and how to manage licenses in WooCommerce. Which WooCommerce license manager plugin do you want me to use (if any preference), and what is your exact .NET target framework so I can tailor the activation flow and API calls? Best regards,
$750 USD in 29 days
8.6
8.6

Hello there, Greetings! I am Abdul Waheed and I am excited to submit my proposal for the "C# WinForms Licensing Integration" project. With a strong background in .NET development, C# programming, WooCommerce integration, and API integration, I am well-equipped to deliver high-quality results tailored to your project requirements. My approach involves a meticulous integration process that ensures seamless functionality and user-friendly experiences. By leveraging my expertise, I guarantee efficient project completion with a focus on precision and effectiveness. Please do check out my profile for project reviews and portfolio at: https://www.freelancer.com/u/widichamp I would love to discuss your project in more detail and share ideas to make it a success. Let me know a convenient time to connect! Best Regards, Abdul Waheed
$375 USD in 3 days
7.2
7.2

Hello Sir, I have integrated 3rd party licensing modules in my .NET applications multiple times. I can do this for you without any problem. Lets discuss and kick off. Usman
$800 USD in 3 days
7.3
7.3

Hi, I sense the critical need in your project: transforming a standard C# WinForms app into a secure, user-friendly licensed product that seamlessly integrates with WooCommerce for streamlined sales. I bring solid expertise in C# WinForms (.NET), software licensing design, and WordPress WooCommerce setups. I recommend using the WooCommerce API Manager plugin—it excels in automatic license key generation and robust API support, ensuring smooth validation and activation flows. For a similar project, I implemented licensing and trial logic in a .NET desktop app integrated with WooCommerce, achieving clear trial periods, secure online activation, and reliable license email delivery. I’ll deliver well-structured C# code for trial and license management compatible with your specified .NET version and configure your WooCommerce site with Stripe & PayPal, ensuring a full purchase-to-activation flow. Documentation and a walkthrough will complete the handover. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Which version of .NET is your app currently targeting, and do you already have a preferred WooCommerce license manager plugin or open to my recommendation? Thanks, Asad
$250 USD in 10 days
7.0
7.0

Hi, I’m excited about the opportunity to enhance your C# WinForms application with effective licensing and trial integration. With solid experience in C# and WooCommerce, I can ensure a seamless 30-day trial setup and robust license management. I recommend using the WooCommerce API Manager for its comprehensive support and ease of integration. I’ve successfully implemented similar projects, combining desktop applications with WooCommerce for licensing. I estimate this project will take about 10 days, ensuring thorough documentation and testing for effective implementation. Let’s discuss any specific preferences you have regarding the licensing plugin and your existing setup.
$250 USD in 5 days
6.6
6.6

Hi x3mofile. I am very excited with your project because I have completed similar project recently. The skills required for your project are my main specialty. I can handle this perfectly and have abundent experiences. Please confirm that I am one of the best fits for you and drop me a message for further discussion. Thanks and Best Regards. Brayan Stiven A.
$500 USD in 5 days
5.8
5.8

⭐⭐⭐⭐⭐ C# WinForms Developer for Licensing and WooCommerce Integration ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for a C# WinForms developer to implement licensing and a 30-day trial. Look no further; Zohaib is here to help you! My team has successfully completed over 50 similar projects. I will create the trial and licensing logic in your C# app and integrate it with WooCommerce for seamless license management. ➡️ Why Me? I can easily implement your licensing and trial features as I have 5 years of experience in C# WinForms and software licensing. My expertise includes developing user-friendly activation systems, integrating with WooCommerce, and ensuring smooth user experiences. Additionally, I have a strong grip on WordPress setup and payment gateway integration. ➡️ Let's have a quick chat to discuss your project in detail. I can show you samples of my previous work and how I can help you achieve your goals. ➡️ Skills & Experience: ✅ C# WinForms Development ✅ .NET Framework ✅ Software Licensing ✅ WooCommerce Integration ✅ WordPress Setup ✅ API Development ✅ Payment Gateway Integration ✅ Trial Management Systems ✅ Code Optimization ✅ User Interface Design ✅ Documentation Creation ✅ Client Communication Looking forward to your response! Best Regards, Zohaib
$350 USD in 2 days
5.7
5.7

I'm experienced in implementing software licensing for desktop apps and integrating with WooCommerce. For this project, I will recommend and configure a suitable WooCommerce license manager plugin, design and set up the licensing logic in the C# WinForms app, and configure WordPress + WooCommerce. My past projects include similar desktop app licensing and WooCommerce integration. I propose a fixed price within your budget range and can complete the project within the estimated timeline.
$750 USD in 7 days
5.3
5.3

With unparalleled proficiency across the entire .NET ecosystem, including C#, WinForms, and WP integration, I am the ideal candidate to seamlessly merge your Windows desktop application with WooCommerce licensing. My extensive experience in software licensing/activation for desktop apps offers an in-depth understanding of the intricate mechanisms involved in developing and implementing a robust licensing system, making me well-equipped to tackle this specific project. For an undertaking as meticulous as yours, it is essential to have a highly skilled developer capable of coordinating all parts harmoniously. Choose me for an exemplary job that unifies your Windows app, its trial + licensing logic, with WooCommerce license generation in a cohesive manner that breeds both functionality and user-satisfaction.
$500 USD in 7 days
5.2
5.2

Hello, I have carefully analyzed your requirements for adding a 30-day trial, license enforcement, and WooCommerce-based activation to an existing C# WinForms application. I recently completed a similar project where I implemented a time-limited trial, online license activation, and local license persistence for a .NET desktop app, integrated with WooCommerce using WooCommerce API Manager for automated key generation and validation. Your project requires a clean licensing flow and reliable backend integration. I will implement a well-structured C# WinForms licensing module that tracks trial usage, blocks access after expiration, and validates licenses online against WooCommerce. I will configure WooCommerce, install and set up the recommended license plugin, integrate Stripe/PayPal, and ensure the full purchase → license → activation flow works end to end, with clear documentation and handover. I am available to begin work immediately and am committed to delivering a secure, production-ready solution with clear documentation within the shortest possible timeframe. Best regards, Elenilson
$800 USD in 7 days
5.2
5.2

Hello, I hope this message finds you well. I am Suresh, the founder of Sanghvi Technosoft. Our mission at Sanghvi Technosoft is to provide everything your business needs to shine from marketing to top-notch graphic design and development. If your business is thriving and you're looking to gain more digital exposure and attract more clients, now is the perfect time to leverage our expertise. Here's how we can assist you: We are a full-service agency specializing in web and mobile development, digital marketing, graphic design, and more. We've helped numerous clients across various industries grow their businesses with high-quality services at affordable prices. Getting started with a simple website can take months, but with Sanghvi Technosoft, you can have a high-quality website and content quickly and effortlessly. Let's discuss your needs and explore how we can support your growth. Message us now to discuss more and get a free quote. I look forward to hearing from you soon! Thanks and Best Regards, Sanghvi Technosoft Note: Final quotation and timeframe for this project will be providing after our discussion.
$500 USD in 7 days
5.3
5.3

Dear Client, I am excited about your project "C# WinForms Licensing Integration" and confident I can deliver excellent results. With strong experience in similar work, I understand your requirements and can start immediately. I would love to discuss your project further and answer any questions. Thanks and best regards, Faizan
$270 USD in 10 days
4.8
4.8

Hello. You want to turn an existing WinForms application into a controlled product with a real trial, paid activation, and clean WooCommerce licensing flow. The main risk here is not coding, but state mistakes between trial, activation, and server validation, which often causes lockouts or unpaid use. In practice the trial must be anchored to first run and verified before UI loads, because delayed checks are easy to bypass. That’s why I design the license state as a single source of truth, with clear transitions and server confirmation only when needed. I’ve implemented this pattern before for desktop apps using WooCommerce APIs, where unclear activation rules caused disputes. Here the app checks status early, validates online, stores minimal local data, and always knows why access is granted or blocked. This flow is verified with clean error states and reversible activation, so changes never break existing users. We can start with plugin choice and API contract immediately.
$900 USD in 10 days
4.9
4.9

✔✔✔Hold on!! Looking for a Developer Who Gets Results? Hire Me, Relax, and Watch Your Project Turn Into Success✔✔✔ How I’ll handle your project • Recommend and configure WooCommerce API Manager (best balance of flexibility, REST API, activation limits, and desktop-app friendliness). • Set up WooCommerce product, auto license generation, email delivery, Stripe/PayPal, and full purchase → license flow. • Implement a 30-day trial in your C# WinForms app with tamper-resistant local storage. • Build a clean LicenseManager layer: CheckStatus() ShowActivationDialogIfNeeded() • Online activation against WooCommerce API with clear error handling (invalid, expired, exceeded activations, etc.). • Well-commented C# code compatible with .NET Framework 4.8 or .NET 6. • Short demo walkthrough + clear documentation for future maintenance and pricing changes. Relevant experience • Desktop software licensing (WinForms & WPF) with trials, machine binding, and server validation • WooCommerce license plugins + REST API integrations • Secure local storage (hashed + encrypted) Timeline 7–10 days total (including testing + documentation) Fixed Price USD $750 (within your range, no surprises) Recurring Costs • WooCommerce API Manager license (one-time or annual, paid directly by you) • Standard Stripe/PayPal fees only I communicate clearly, ship tested builds, and make sure you fully understand what you own. If you want this done right the first time, I’m ready to start.
$750 USD in 7 days
4.4
4.4

With my strong grasp on C#, WinForms and .NET, I'm confident in my ability to efficiently design and implement the licensing logic you need. While I don't have specific WooCommerce license manager plugin experience, my extensive knowledge of WordPress, as well as API integration gives me the ability to work with any licensing module efficiently. I'll recommended the best license manager plugin for your exact requirement and make sure to provide a well-structured, documented solution including basic functions like 'CheckStatus' and 'ShowActivationDialogIfNeeded' while storing trial and license data locally. I've worked on similar projects earlier with desktop applications, responsible for licensing and WooCommerce integration. This has given me an understanding of best practices in this domain which I'll incorporate into my design and development for your project. Moreover, I'll utilize my experience in documenting software features alongside providing you the definitive instruction manual including the choice of license plugins OCDetail & configuration details, basic setup usage of products & viewing customer licenses. I believe my expertise in programming C# WinForms alongside integrating API and WordPress makes me an excellent fit for this task. Let's discuss further details during a short call or video walkthrough so that we can start giving shape to your project. Building up customer satisfaction with high-performance solutions is always my top priority!
$300 USD in 7 days
4.4
4.4

I have over 10+ years of experience C# WinForms Licensing Integration. Please feel free to further discuss the requirements and timeline for the project. I'd be happy to assist you. I am ready to start right now. You can visit my Profile https://www.freelancer.com/u/HiraMahmood4072 Thank you
$500 USD in 2 days
4.6
4.6

Hello, I can implement a clean 30-day trial + online activation flow in your C# WinForms app and wire it to WooCommerce so license keys are generated on purchase and validated through the plugin’s API. For the WooCommerce side, I typically recommend **WooCommerce API Manager** (strong license/activation endpoints and clear management) or **WooCommerce Software Add-On** (simple key delivery) depending on whether you need device activations, seat counts, and revocation; I’ll pick the best fit once I see your exact rules (single machine vs multi-device, max activations, renewals). On the app side, I’ll deliver a small, well-structured `LicenseManager` module that starts the trial on first run, shows “days remaining,” and blocks the app behind a modal activation window once expired. Activation will validate online against your WooCommerce license system, store the activation locally in a tamper-resistant way, and handle common failures clearly (invalid/expired/over-activated). I’ll also set up WordPress + WooCommerce on your hosting, configure Stripe/PayPal, create the product page, and confirm the full flow works end-to-end (buy → key issued → email/thank-you page → app activates). I can deliver this as a fixed-price job within your budget, including documentation on plugin setup, where the app checks licensing, where trial/license data is stored, and how to manage licenses in WooCommerce, plus a short walkthrough.
$350 USD in 5 days
4.8
4.8

C# WinForms Licensing Integration I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$250 USD in 5 days
4.8
4.8

Hi there,Good morning I am Talha. I can work with your project skills API Integration, Payment Gateway Integration, C# Programming, WooCommerce, .NET and WordPress I am excited to present my proposal, which centers around a personalized approach designed to elevate your project. We will start with an in-depth consultation to gain a deep understanding of your project's unique requirements, goals, and constraints. Our commitment to customization means that we will tailor our services to align perfectly with your project, and we will explain how this approach will meet your expectations. Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan
$250 USD in 12 days
4.3
4.3

Hi there, I’ve reviewed your C# WinForms licensing project and I’m confident I can implement a robust 30-day trial, license activation window, and a seamless WooCommerce integration.\nI’ll deliver a well-structured LicenseManager with startup checks, local storage, and online activation flow, plus a recommended WooCommerce license plugin (e.g., WooCommerce Software Add‑On) with clear docs; next steps: confirm the target .NET version and plugin choice, then deliver a working prototype in about 2–3 weeks Best regards,
$250 USD in 3 days
4.1
4.1

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