3 Apps to Build With AI This Weekend
A free step-by-step prompt guide.
You don’t need to code to try these. Copy one master prompt into Runable and ask it to build the app. Review and test the result before publishing. Start with one app at a time.
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Habit Tracker
Build an app that helps you stay consistent with the habits that matter to you.
Copy-and-paste prompt
Build me a clean, calming, mobile-first habit tracker as a fully functional single-page web app. Let me add, edit, and delete up to 8 habits, each with a custom name and emoji. Create a Monday-to-Sunday grid where I can tap to check off habits, a streak counter for each habit, and progress bars showing weekly completion. Celebrate a 7-day streak with a motivational message. Show my daily progress and allow me to view previous weeks. Save my habits and check-ins locally so they remain when I return to the same browser. Make it beautiful, simple, and fast to use. Ask me a few questions only if needed, then build and test the working app. Show me the preview before publishing. Do not build a static mockup.
Why build it: Keep your routines visible without the clutter of a complicated habit app. Check in each morning in seconds.
Personal Budget Planner
See where your money goes and catch overspending before the month ends.
Copy-and-paste prompt
Build me a fully functional, clean, mobile-friendly monthly budget planner as a single-page web app. Let me enter monthly income, add or edit custom categories such as rent, groceries, subscriptions, transportation, and business tools, and set a spending limit for each. Let me log, edit, and delete expenses with an amount, date, and category. At the top, show total income, total spent, and money remaining. Show a progress bar for each category: green when comfortably under budget, yellow when near the limit, and red when at or over budget. Add a simple spending breakdown and allow me to review previous months. Save all entries locally so they remain when I return to the same browser. Use an attractive, minimal design with clear charts and large mobile-friendly controls. Include optional clearly labeled demo data. Ask essential questions if needed, then build and test calculations, entries, and saved data. Show me the preview before publishing. Do not ask for bank credentials or build a static mockup.
Why build it: Make a budget that fits your own categories and see the impact of each new expense immediately.
Halloween AI Costume Generator
Preview costume ideas using your own selfie or full-body photo.
Copy-and-paste prompt
Build me a fully functional, mobile-friendly web app called Halloween AI Costume Generator. Users can upload a selfie or full-body photo, then either type a description of the outfit they want or upload one or more costume reference images. Generate a new image of the person realistically wearing that costume while keeping their facial identity and natural proportions as closely as the model allows. Change the background to match the costume and scene, with an optional background picker or automatic background selection. Include example costume presets (vampire, witch, zombie, pirate, ghost, cyberpunk character), a Generate button, loading feedback, before-and-after comparison, Regenerate, and Download. Make it fun and polished with purple, orange, and black Halloween styling. Use an image-generation model or integration genuinely supported by Runable; test an actual photo-to-costume generation rather than faking a result. If external configuration or credits are needed, explain that before proceeding. Treat uploaded photos privately and ask before publishing. Show me a working preview.
Why build it: Test different Halloween looks and backgrounds without buying a costume first.
How to Get Better Results
- Start with one prompt. Answer any clarification questions Runable asks.
- Test the core interaction: mark a habit, log an expense, or generate a costume image.
- Ask Runable to refine the layout, colors, wording, or features until you’re happy.
- Only publish after testing. Basic browser-local storage is device-specific; it does not automatically sync across phones and computers.
- AI image generation depends on the models and connections available to your account, and may use credits.
Build Your First App
I used Runable for the prompts in this guide. Pick one app, paste the prompt, and test it before you publish.
Try Runable ↗
Get 50% off Runable when you sign up through my link.