PayLogic — Shopify Functions app for payment-method customization + free Scripts → rules converter

Ask & Offer
1

Hello Shopify community!

Jack Petersen here, solo developer at Mama Dog LLC. I want to introduce PayLogic on this board now that it’s been live on the App Store for a few weeks and would love honest feedback from anyone who’s recently migrated payment Scripts to Functions — the patterns I’ve seen in the wild have edge cases I’m still learning.

What it is:

PayLogic is a Shopify Functions-native app for payment-method customization at checkout. Visual rule builder for hiding, renaming, or reordering payment methods based on rules you define with no code required.

Rule conditions you can combine:

  • Cart total, currency, item count
  • Shipping country, shipping method title
  • Customer tags (any tag in your admin — not a hardcoded allowlist)
  • Product tags
  • Customer history — first-time vs returning, lifetime spend, prior-order count
  • Prior-order risk — this one is the differentiator. PayLogic reads Shopify’s own order-risk assessments from a customer’s past orders and lets you auto-hide Cash on Delivery for customers Shopify already flagged HIGH or MEDIUM risk. Particularly useful for COD-heavy markets fighting return-to-origin losses, since it uses Shopify’s existing native signal rather than third-party data.

Why it exists:

Shopify Scripts execution stops on June 30, 2026. Editing was already disabled April 15. Stores using payment-customization Scripts need to migrate before then.

For merchants weighing options, there are three migration paths I commonly see:

  1. Install a Functions-based app from the App Store (several exist in this category for $2–30/month).
  2. DIY — write a Rust or JS Function, deploy via Shopify CLI. Free but requires engineering.
  3. Hire a Shopify Partner agency. Typically $1–5k.

PayLogic is path 1 for the payment-method side specifically.

Free tool — no install needed

For anyone in the inventory/audit phase of their migration, I built a no-signup, in-browser converter that parses a Shopify Script and shows what’s cleanly translatable to Functions, what’s partially supported, and what isn’t expressible in Functions yet. Runs entirely client-side — just plop your Ruby in the left side and see the rules in converts to on the right.

paylogic.dev/scripts-converter

It’s useful whether you end up using PayLogic, a different app, DIY, or hiring an agency. Just an audit tool.

Pricing — transparent

  • Starter — $1.99/month, up to 3 active rules. Cart-total / country / currency / item-count / shipping / first-time-or-returning rules. Hide / rename / reorder actions.
  • Standard — $4.99/month, unlimited rules + custom customer-tag rules + big-spender rule.
  • Plus — $9.99/month, everything in Standard plus the risk-composite rule, customer prior-risk rule, and rule versioning with one-click rollback.
  • 3-day free trial on every paid plan.
  • Free for Shopify Partner development stores (full Plus features at no charge).

Plan compatibility

Works on every Shopify plan (Basic and up). One narrow regional exception: in the US and Canada, hiding credit-card payment methods specifically requires Shopify Plus – this is a common issue that I see users post about in forums. That’s a Shopify platform restriction since June 2024, not a PayLogic limitation, and it applies to every Functions-based payment-customization app. Outside the US and Canada, or for any non-credit-card method anywhere (Cash on Delivery, bank transfer, BNPL, wallets, manual methods), all Shopify plans work.

What I’m asking for:

Honest feedback on:

  • The converter — does it cover the patterns in your Scripts?
  • The rule templates — anything obviously missing?
  • The pricing tiers — does the Plus-tier feature mix justify the gap from Standard?
  • Listing copy / screenshots — are they clear about what the app does?

Particularly want to hear from anyone in COD-heavy markets (India, MENA, SEA, LATAM) on whether the risk-gated COD feature maps to your actual RTO pain.

App Store listing: PayLogic Payment Customization - Hide, reorder, rename payment methods — no code needed. | Shopify App Store

Thanks for reading! Happy coding/shopifying.

Jack Petersen
Mama Dog LLC
[email removed]

5

This is the best framing I’ve seen in the thread, thanks for that. The metric that matters is whether the rule actually cut RTO and losses without blocking good buyers. Active rule count is just the thing that’s easy to meter. It isn’t what merchants actually care about.

I’ll be straight about where PayLogic is right now. Today it’s the enforcement and safety layer, not the measurement layer. It does have versioned rules with rollback, a prior order risk condition that reads Shopify’s own risk signals, and an importer that flags any Script it can’t map one to one. What it doesn’t have yet is shadow mode or outcome attribution. So I’d be overselling if I claimed monitored loss reduction today.

The part you’re most right about is how hard the attribution is. RTO shows up at delivery, days after checkout, and to do it properly you need a counterfactual for the good customer you might have blocked. That means running rules in shadow or holdout mode and reporting by country, new vs returning, per rule, and false block rate. Not a dashboard of hides. Migration deserves the same bar. A real parity test runs the old Script and the new rule on the same inputs and diffs the output, instead of trusting import flags.

On your last question, yes. Measured loss reduction and migration assurance is the more durable value, and it’s the direction that would justify pricing on outcomes instead of rule counts. I’m solo and early, so I’m building the enforcement and safety pieces first, but that measurement layer is the version worth building. Happy to keep talking about what a shadow mode test would need to capture to actually be trusted.