The UX of your web app is the overall impression and feeling that users have when they interact with it. Optimizing it for conversions is essential, as you want to persuade users to take the desired action, such as donating to your cause or project. To do this, you should use clear and compelling copy that conveys your value proposition and story. Include headlines, subheadings, and bullet points to highlight key points and benefits. Additionally, use a clear CTA that tells users what to do and why. Social proof and urgency can also be used; testimonials, reviews, ratings, endorsements, or badges show users that others trust and support your cause or project. Countdown timers, progress bars, or limited offers create a sense of urgency and scarcity. Gamification and personalization techniques like badges, rewards, leaderboards, challenges, segmentation, recommendation or customization make your web app more fun and engaging. Finally, reduce friction and anxiety by using a simple donation process with minimal steps and fields; trust signals such as logos, certificates or seals also help show users that your web app is secure and legitimate. Guarantees, refunds or FAQs can address users' doubts and concerns.