Paywalls that optimize themselves.
Belfort designs, tests, and ships the paywalls inside your app — then an agent keeps hunting for the version that earns more. You just approve the winners.
Everything a paywall needs to earn its keep.
Build it, test it, and read the revenue — without shipping an app update or writing a line of pricing logic.
Ship paywalls, not app updates.
Design paywalls remotely and publish them instantly. Start from four battle-tested templates, target any trigger, and roll out to a slice of traffic — no App Store review, no release train.
- Classic, Hero, Storyboard & Minimal templates
- Trigger on any event or manual placement
- Audience targeting & staged rollouts
Test everything. Trust the math.
Run A/B experiments on copy, layout, and price. Belfort tracks conversion and revenue per variant, watches for statistical significance, and calls the winner the moment the data is ready.
- Conversion & ARPU tracked per variant
- Significance & sample-size guardrails
- Automatic winner promotion
An optimization team that never sleeps.
Belfort's agent drafts fresh paywall variants from what's already working in your data, predicts the lift, and queues them for your approval. It quietly retires the losers, too.
- Drafts variants from cohort priors & past winners
- Predicts expected lift before you ship
- Auto-pauses paywalls that fall below your floor
- Nothing goes live without a human approval
Revenue you can actually see.
Every paywall reports the numbers that matter — impressions, conversion, ARPU, and the MRR each screen contributes. Follow a cohort all the way from view to purchase.
One SDK. Then let Belfort drive.
Drop in the SDK, name your placements, and ship. Targeting, experiments, and winner promotion all run server-side — your app just asks for the right paywall.
Install the SDK
One package for iOS, Android, and web. Configure it with your publishable key and you're connected.
Design paywalls in Belfort
Build screens and wire them to placements like session_limit — no redeploy required.
Belfort tests & optimizes
Experiments run automatically. The agent drafts challengers and promotes winners while you sleep.
# install $ npm i @belfort/sdk import { Belfort } from '@belfort/sdk' const belfort = await Belfort.configure('pk_live_ab12…') // Show the right paywall at the right moment. // Belfort serves the winning variant automatically. await belfort.present('session_limit')
“Belfort's agent found a 14% lift on our onboarding paywall while we slept. Now our whole team does one thing each morning — approve the winners.”
Priced to pay for itself.
Start free while you're small. Add the agent when you're ready to let Belfort run the experiments for you.
- Up to 10k MAU
- Unlimited paywalls & templates
- A/B experiments
- Core revenue analytics
- Up to 250k MAU
- The optimization agent
- Sequential testing & guardrails
- Roles, audit log & approvals
- Unlimited MAU & products
- SSO/SAML & SOC 2
- Data warehouse export
- Dedicated success team
Your paywall is the register.
Stop leaving it on default.
Connect your app and ship a smarter paywall today. Belfort takes it from there.