From Free Add-on
to Paid Business.
QuadRamp is Uptrend Motion's flagship product — a monetization and analytics platform purpose-built for Google Workspace add-on developers. We built the billing infrastructure, entitlement engine, and analytics stack that developers would otherwise spend 4–6 months engineering themselves.
The Monetization Gap Every Add-on Developer Hits
Building a Google Workspace add-on is the easy part. Charging for it is a 4–6 month engineering project — before you've earned a single dollar.
Traction Without a Path to Revenue
A developer builds a Google Sheets productivity add-on. Over 18 months it grows to 2,000 installs. Users are engaged, requesting premium features, asking about pricing. The traction is real. But monetizing it means solving a completely different engineering problem.
Stripe's API requires server-side code — Google Apps Script runs in a sandboxed environment that doesn't expose a public endpoint. That means standing up a backend from scratch, then building webhook handlers for every subscription lifecycle event, a customer billing portal, entitlement checks on every add-on open, dunning logic, invoice generation, and plan upgrade flows. A minimum viable billing system is 4–6 months of part-time work — before a single paid feature ships.
Apps Script Has No Server-Side Endpoint
Stripe webhooks need a public HTTPS endpoint. Apps Script doesn't provide one — so every developer who wants to monetize must stand up and maintain their own backend first.
Subscription Lifecycle Is Deeply Complex
Payment failure, plan change, cancellation, trial expiry — each Stripe event requires its own handler and must translate into the correct entitlement state inside the add-on in real time.
No Analytics on Free Add-ons
Without usage data, developers can't see which features drive engagement, where users drop off, or which segments would convert to paid — making even the pricing decision a guess.
The Entire Billing Stack. Already Built.
We built QuadRamp as the monetization infrastructure layer that every Google Workspace add-on developer needs — so they can go from free to paid in an afternoon, not a quarter.
Connect Your Add-on
Add the QuadRamp SDK to your Apps Script project and drop in one config block. No server setup, no OAuth flows to manage — done in under 15 minutes.
Set Your Pricing
Define subscription tiers or one-time payments via the QuadRamp dashboard. Stripe is wired up automatically — no API keys in your add-on's code.
Gate Your Features
Add a single QuadRamp.verify() call on add-on open. Returns subscription status in real time so you can show or hide premium features instantly.
Manage and Grow
Track revenue, monitor DAU/MAU, manage subscriptions, and handle customer support — all from a single QuadRamp dashboard.
Full-Stack Billing Infrastructure From the Ground Up
QuadRamp isn't a wrapper around Stripe — it's a complete monetization platform engineered from the ground up for the specific constraints of Google Workspace add-ons. Building across Stripe's full billing surface, real-time entitlement, webhook idempotency, and a cross-surface SDK is the kind of technical depth behind our award-winning team, led by Rebecca Koniahgari, recognized as Product Developer of the Year and Technical Professional of the Year.
Stripe-Native Billing Layer
QuadRamp's backend sits between Stripe and the add-on, handling payment intents, subscription creation, customer portal sessions, dunning for failed payments, and all billing state — none of that complexity reaches the developer.
- Full subscription lifecycle management
- Stripe Customer Portal integration
- Automatic dunning and retry logic
Lightweight Apps Script SDK
A compact JavaScript library added to the add-on project. Wraps the entitlement API in a clean interface, handles auth transparently, and keeps all Stripe credentials server-side — never in the add-on's code.
- Single file, minimal footprint
- No Stripe keys in client code
- Identical API across all 5 surfaces
Real-Time Entitlement API
A single QuadRamp.verify() call returns the user's subscription state in under 150ms — enabling instant feature gating without blocking the UI or creating noticeable latency.
- <150ms average response time
- Returns tier, status, and expiry
- Works across all Workspace surfaces
Webhook Event Processor
Handles every Stripe lifecycle event — subscription.created, payment_failed, invoice.paid — translating each into a user entitlement state change with automatic retries.
- Processes all Stripe lifecycle events
- Idempotent event handling
- Automatic retry on transient failures
Analytics Pipeline
Usage events from the SDK are aggregated into real-time dashboards covering DAU/MAU, feature engagement, conversion funnel from free to paid, cohort retention, and revenue forecasting.
- Real-time usage and revenue dashboards
- Conversion funnel and cohort analysis
- Revenue forecasting and reporting
Multi-Surface Compatibility
The same SDK, entitlement model, and dashboard work identically across Google Docs, Sheets, Slides, Forms, and Drive — one integration pattern for all five surfaces, with Calendar, Gmail, and Meet coming soon.
- Consistent API across all surfaces
- One dashboard for all add-ons
- Calendar, Gmail, Meet in roadmap
What Developers Say After Integrating QuadRamp
Early customers moved from months of planned infrastructure work to accepting payments in a single afternoon — and the revenue impact has been measurable.
"Subscription and analytics tools helped us grow revenue by 300% in six months. The data from the analytics dashboard completely changed how we thought about our pricing."
"We started accepting payments in minutes, saving months of development. I expected to spend a full quarter building billing — QuadRamp meant I spent that time shipping features instead."
"The analytics provided invaluable insights for understanding our users. Integration was seamless with responsive support at every step — I've never had an infrastructure integration go this smoothly."
What Building QuadRamp Demonstrates
QuadRamp required building every layer of a production SaaS product — from API design to SDK development to analytics pipelines. This is what it looks like when we ship a flagship product end-to-end.
Full-Stack SaaS Architecture
We designed and built every layer: the REST API, webhook processor, entitlement engine, customer portal, analytics pipeline, and developer-facing SDK — a complete product stack, not a prototype.
Deep Stripe Integration Expertise
QuadRamp covers the full Stripe billing surface: payment intents, subscription management, customer portal, dunning, invoice lifecycle, and webhook idempotency — implemented correctly for production scale.
Developer Tooling and SDK Design
We built an SDK developers actually want to use — minimal surface area, intuitive API, zero credential exposure, and identical behavior across all five Google Workspace surfaces.
Ready to Monetize Your Add-on — or Build One?
Whether you've got an existing Google Workspace add-on that needs a monetization layer, or you want to build a product from the ground up, we've done this before — and we know exactly what it takes.