SubStacking

Tagline

The crowd-sourced antidote to zombie subscriptions and hidden price hikes.

Problem Statement

The average consumer loses over $200 annually to "zombie subscriptions” forgotten services, complex cancellation loops, and unannounced price increases. Existing apps try to solve this by demanding full access to your bank accounts, which raises massive privacy concerns, or they charge heavy fees, defeating the purpose. There is no privacy-first, community-powered way to stay ahead of predatory subscription models.

The Solution

SubStacking is a privacy-focused, crowded subscription tracker and alert system. Instead of scraping bank data, it uses a lightweight, secure browser extension or email parser to identify receipts and upcoming renewal dates.

More importantly, it features a Community Intelligence Engine: when a user flags that a popular streaming service just hid a cancellation button or raised its monthly fee by $3, everyone on the platform subscribed to that service gets an instant alert and a 1-click generation tool for a pre-written cancellation or negotiation script.

Why It’s Unique & Impactful

• Zero Bank-Linking: Solves the primary trust barrier holding users back from traditional financial management apps.
• Crowd-Sourced Defensive Data: It turns individual consumer frustration into collective power. If a company makes it hard to cancel, the community maps the fastest exit route for everyone else.
• High Virality: Users naturally want to share "how much I saved this month" dashboards, driving organic growth.

Who We Are Looking For

• Full-Stack Developer: Experienced with building secure browser extensions and lightweight dashboard UI.
• UX/UI Designer: Someone obsessed with turning boring financial data into clean, satisfying, and motivating visuals.
• Community Growth Specialist: To help seed the initial user base and cultivate the crowd-sourced alert culture.

How to use this for your challenge:

1. Head over to BuiltOnIdeas.com.
2. Create a new project listing using the sections above (feel free to tweak the name or specific details to match your personal style!).
3. Once published, copy your unique project link.
4. Paste that direct link right into your challenge submission description.