HalloweenOS

Halloween, dialed in. Throw the best Halloween night on the block - costumes, decor, food, trick-or-treat route, candy budget, party schedule, pumpkin carve plan - in one private, offline-first app. Eight tabs. One file. Yours forever for one price. A guest list with RSVP yes/maybe/no, adult and kid head counts, costume reveal column, and dietary notes. A costume planner per family member with status (idea / bought / DIY / done) and a running cost. A theme picker (haunted house, witches, vampires, classic jack-o-lantern, kid-friendly) that sets the vibe for the rest of the dashboard. A decor checklist with where-to-buy notes and a live budget bar that combines decor + costumes + menu + candy. A themed menu - witches finger pretzels, mummy hot dogs, eyeball deviled eggs, pumpkin chili, kid witches brew, black widow martini, caramel apple bar - tracked by servings and cost. A trick-or-treat route planned stop by stop, a candy budget vs expected-kids math, and a real-time candy counter so you know exactly when to switch off the porch light. A party schedule block by block with a one-tap activity timer for the costume contest, the movie block, the pumpkin carve. A pumpkin carve tracker per family member. Settings for profile, party date, address, total budget, JSON export and import, and full reset. Every input saves locally to your device. Nothing goes to a server. No account, no subscription, no app store, no annual fee. Works on laptop in any browser, and adds to your iPhone or Android home screen as a standalone app for offline use on the night.

WHAT'S INCLUDED

• Guest list with RSVP yes/maybe/no, adults + kids head counts, costume reveal, dietary notes
• Costume planner per family member: idea / bought / DIY / done + running cost
• Theme picker: haunted house, witches, vampires, classic, kid-friendly
• Decor checklist with where-to-buy notes and live budget bar
• Themed menu (snacks, mains, drinks, dessert) by servings and cost
• Trick-or-treat route planner stop by stop
• Candy budget + real-time candy counter vs expected kids
• Party schedule block by block with one-tap activity timer
• Playlist seeder (Thriller, Monster Mash, This Is Halloween)
• Pumpkin carve tracker per family member
• Settings: party date, address, total budget, JSON export / import / reset
• Single HTML file - laptop + iPhone + Android home screen, fully offline

100% PRIVATE AND OFFLINE

All data stays on your device. No server, no cloud, no account. Works completely offline.

WORKS ON ALL DEVICES

Open on laptop, add to home screen on iPhone (Safari) or Android (Chrome) as an app. One file, all devices.

INSTANT DOWNLOAD

Download once, use forever. No subscription, no renewal, no expiry.

PERFECT FOR

• Parents who host the family Halloween party every year
• Neighborhood block hosts running 60+ kid trick-or-treat nights
• Halloween fanatics who plan in August
• Families coordinating costumes for 4+ people
• First-time Halloween hosts who want a step-by-step plan
• Anyone who wants to throw the best Halloween night on the block without subscribing to another planning app

Questions? Message us on Etsy - we reply within 24 hours.