C
Blog topic
Posts about checkout.
10 posts from the Plandalf blog on checkout, newest first. Teardowns, pricing notes and product updates from the team.
No credit card required. No coding required.
Checkout
Every post about checkout.
Newest first. Switch topics or go back to everything.
- 5 min readGuideStripe test cards: numbers for every scenarioFree Stripe test card picker: copy the number for a successful payment, a decline, 3D Secure, a fraud check, a dispute or a refund. Checked against Stripe's docs.
- 8 min readGuideHow to sell digital products: checkout, pricing, deliveryHow to sell digital products online in seven steps: pick the product, set the price, take payment, deliver instantly, add bumps and upsells, and test the whole path.
- 8 min readConversionScarcity marketing examples that are honestScarcity marketing examples by type (quantity, time, access), what regulators flag as fake, and how to set up limits that are real at checkout.
- 6 min readUpsellsWhat is an upsell? 7 practical examplesAn upsell is an offer for a higher-value version of what a buyer is already choosing. See how it differs from an order bump, 7 examples, and rules that keep it from annoying people.
- 4 min readPricingSamCart pricing in 2026: what each plan costsSamCart's Core, Pro and Done for You plans as listed on its pricing page on 2026-10-16, with a yearly cost table and the plan price as a share of revenue.
- 6 min readFunnelsFunnel builder or checkout? What you needChoose a funnel builder for pages and email, or keep your existing tools and add checkout, order bumps, upsells and deadline offers.
- 3 min readMemberpressIntroducing Plandalf for MemberPressMeet our open-source MemberPress checkout plugin: membership price mapping, signed purchase events, real screenshots and the v0.1.0 early-access download.
- 2 min readConversionThree things every checkout should do firstBefore you A/B test button colors, get the fundamentals right: page weight, address autofill, and a payment method customers actually want to use.
- 3 min readConversionHow Bonjoro lifted SaaS conversions by 40%The Bonjoro upgrade experiment that led to Plandalf: a feature-led offer, an in-product payment flow, and a reported lift from a 10–12% baseline to 16.6%.
- 3 min readStripeFive Stripe checkout handoffs to get rightChoose the right plan, prepare customers for payment, connect checkout sessions to purchases, deliver the upgrade, and return people to their work.
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Checkout teardowns, pricing notes and product updates. Only when there is something worth reading.
The team
Built by a team obsessed with conversion.





15+ years testing every pricing model under the sun. Every part of Plandalf comes from a real checkout problem we’ve had to solve ourselves.
No credit card required. Nothing to migrate.