FunnelKit Launches Sublium: The Revolutionary Subscription Engine WooCommerce Has Been Missing

For fifteen years, I’ve built and sold software in the WordPress and WooCommerce ecosystem. In that time, one category has remained broken longer than any other: subscriptions.

The base WooCommerce Subscriptions plugin gets you charging cards on a schedule, but the moment you get serious, the gaps show. 

Native dunning exists, but it’s basic and often needs code to do anything sophisticated. 

Real analytics, such as MRR, ARR, churn, retention, mean buying a separate reporting tool, because the built-in reports assume every renewal succeeds. 

Retention tools like payment retries and cancellation flows barely exist. 

So you end up stitching together a stack with the base plugin, a reporting add-on, an email tool, and custom code to hold it together. 

Each piece is another renewal fee and another thing that breaks when WooCommerce ships an update.

Today we’re fixing that. Sublium is live, a complete subscription platform for WooCommerce, built from the ground up by the FunnelKit team.

Here's a quick walkthrough of what Sublium Subscriptions is all about:

Why We Built Sublium Subscriptions?

Recurring revenue is the most valuable revenue a store can have. It’s predictable, it compounds, and it’s the difference between a business that survives a slow quarter and one that doesn’t. 

A customer you bill again next month is worth far more than one you have to win back from scratch every time.

Yet the infrastructure for recurring revenue on WooCommerce has lagged years behind what Shopify and standalone billing platforms offer. 

The native pieces exist, but they’re thin and scattered. Setting up a subscribe-and-save option meant wrestling with settings, recovering failed payments meant writing code or buying a specialist plugin, and understanding your own churn rate meant exporting spreadsheets and doing the math yourself.

We didn’t want to ship another incremental plugin. We wanted the system I’d want to run myself. 

One tool that handles selling, growing, and retaining subscribers without a stack of fragile dependencies underneath it. 

That was the standard we held Sublium to from day one.

What Sublium Does?

Sublium is designed around the full lifecycle of a subscriber, not just the moment they first pay you, but every renewal, upgrade, and decision to stay or leave after that. 

Here’s how it works at each stage.

Three ways to sell, out of the box

Most subscription plugins do one thing. Sublium ships with three distinct selling models, because how you charge should match what you sell.

With the generous free plugin, you can create these plans and start selling for free.

• Recurring Subscriptions: Bill customers automatically on a daily, weekly, monthly, or yearly cycle for digital products, memberships, software licenses, or services.

• Subscribe & Save: Built for physical products, customers buy on repeat, such as coffee, vitamins, pet food, and skincare. Shoppers choose a delivery interval right on the product page and lock in a discount for committing to it.

• Installments: Let customers split a large purchase into fixed payments over weeks or months. For high-ticket products, coaching packages, or premium services, this removes the price barrier at checkout and lifts conversion on the orders that matter most to your bottom line.

All three work with simple products, variable variations, and digital downloads natively, no workarounds required.

Flexible billing without touching code

A subscription business lives or dies on the details of its offer, so Sublium makes those details easy to control. You can set billing cycles in days, weeks, months, or years. 

Add free trials to let customers try before they commit, paid trials, or one-time sign-up fees. Layer in recurring discounts and limited-time promotional pricing to attract new subscribers.

The part that saves the most time is global plan management. Instead of configuring products one by one, you build a subscription plan once and apply it across entire categories or dozens of products at once. 

You can even combine one-time purchases and recurring options on the same catalog. None of it requires a line of code.

High-converting plan layouts

How a subscription offer looks on the page directly affects how many people take it. Sublium includes conversion-optimized plan templates you can match to your brand. 

Show before-and-after pricing, highlight the savings, and add badges to steer customers toward your best plan. It automatically adjusts to your active theme.

Everything is mobile-friendly out of the box, because that’s where most of your customers are deciding.

Retention built in

This is where most subscription plugins stop and where Sublium actually starts. Acquiring a subscriber is hard, but keeping one is where the profit is. 

So we built the retention tooling directly into the core, instead of leaving you to assemble it from add-ons.

• Payment recovery and dunning 

When a renewal payment fails due to an expired card or a temporary bank decline, Sublium automatically steps in. 

Configure up to six retry attempts on a schedule you control, and the recovery emails can be edited with the visual builder’s drag-and-drop content blocks, so every dunning message looks like it came from your brand.

This is the same visual builder that customers boast in FunnelKit Automations.

Failed payments are one of the largest sources of silent, avoidable churn, and recovering them is the highest-return work a subscription business can do.

• Card updater

When a card expires, Sublium sends the customer a secure link to update their card in one click, no account login required.

You can brand the entire card update page, button text, and confirmation messaging to match your store.

Removing the login wall is one of the simplest ways to recover renewals that would otherwise quietly leak away each month. 

• Cancellation flow

When someone moves to cancel, Sublium doesn’t just let them walk away. 

It runs them through a cancellation flow you design, with a benefit page reminding them what they’d lose and a reason survey that tells you why people actually leave.

Offer them targeted incentives (such as a discount, a pause, or a skipped payment instead of a full cancellation) to keep them. 

Every screen is editable, you can show different offers conditionally, and the dashboard tracks exactly how much revenue the flow saved.

The reasons you collect become a roadmap for what to fix next.

Subscription upgrades that grow revenue from your subscribers

Retention keeps revenue. Upgrades grow it.

Sublium’s plan switching lets customers switch between plans from monthly to annual, or from a basic tier to a premium one, right from the cart, checkout, FunnelKit’s mini cart, or My Account page.

You can build targeted upgrade offers (“Switch to the Plus plan and get more value at 20% off”), control the banner copy and design.

Set conditions for who can see them, and handle proration automatically so the math is always fair.

This is the highest-margin revenue in any subscription business. More value to a customer who’s already said yes.

Analytics that actually inform decisions

Sublium gives you a real-time analytics suite built specifically for recurring revenue, not bolted-on order reports. 

You get dedicated dashboards for subscriptions, subscribers, upcoming revenue, MRR, ARR, churn, upgrade groups, payment recovery, and cancellation flow performance.

Track active MRR and how it moved against last month, new versus renewal revenue, zero-day churn, lost and paused MRR, upcoming orders, and the revenue at risk in recovery.

All these subscription metrics are filterable by time period and are current to the minute.

You shouldn’t have to export CSVs and build your own spreadsheet to know whether your subscription business is healthy. 

Now you see it at a glance and act on it.

Notifications your subscribers actually read

Sublium keeps your customers informed with consistent subscription notifications. 

These are your renewal reminders, card-expiry warnings, renewal confirmations, upgrade completions, cancellations, installment notifications, and admin-side alerts.

Sublium ships with built-in subscription notifications, built in the same drag-and-drop email builder, so every message in the lifecycle is on-brand and on-time, without a separate email tool stitched in behind it.

A customer portal that cuts support tickets

Every email asking you to pause a subscription or skip a delivery is a tax on your team and a moment where a frustrated customer might just cancel instead.

Sublium’s self-service portal hands that control to subscribers and you decide exactly what they can do. 

Let them pause or early-renew a recurring plan; pause, skip, or early-renew a Subscribe & Save order (with a limit on how close to the next order they can skip); pay off remaining installments in one go; restart a subscription; or update their own address.

Every action they handle themselves is one your team doesn’t, and one fewer reason for them to leave.

Full admin control

From the WordPress dashboard, you can edit next payment dates, adjust pricing with taxes, switch a customer’s payment method, add products to an existing subscription, or cancel directly.

Subscriber profiles give you the full picture of every customer, and activity logs record what happened and when.

This will help you track the trail when something looks off, instead of guessing.

Built to Power a Real Subscription Business

Sublium runs on Stripe, PayPal, and Square, with Mollie and Authorize.net in early release. It processes recurring renewals and regular one-time orders side by side without conflict.

Subscriptions are only useful if access follows the payment. 

Sublium connects directly to LearnDash and TutorLMS to grant and revoke course access as subscriptions activate, renew, pause, or end. 

It integrates with MemberPress and WooCommerce Memberships to keep membership access in lockstep with the subscription lifecycle. 

Sublium works hand in hand with AffiliateWP to track commissions accurately across renewals and status changes.

The right people keep access. The wrong people don’t. Automatically.

Where Sublium Fits At FunnelKit

FunnelKit exists to help WooCommerce stores capture more revenue at every stage: the funnel, the checkout, and the follow-up. 

Subscriptions were the missing piece, and because Sublium comes from us, it doesn’t just sit next to FunnelKit; it’s wired into it.

FunnelKit Cart

It works natively with FunnelKit Cart, so subscriptions show up cleanly in the slide-in cart alongside upsells and express-pay buttons.

You can even add attractive rewards to encourage your customers to opt in for more subscription products. 

FunnelKit Funnel Builder

It plugs into FunnelKit Funnel Builder, so you can build dedicated subscription sales funnels or a high-converting store checkout with order bumps and one-click upsells. 

And the recurring revenue gets seamlessly captured inside a flow designed to convert.

FunnelKit Automations

Sublium Subscriptions feeds FunnelKit Automations with a full set of subscription events, such as new subscription created, trial ending, renewal succeeded or failed, card about to expire, installments completed, and status changed.

You can run abandoned-cart recovery, post-purchase sequences, and pre-renewal nudges off real subscription triggers, not guesswork.

The most durable growth comes from building a base that pays you again and again. 

Sublium is how we help you build that base and the rest of FunnelKit is how you grow it.

Pricing Front: What We Charge and What We Won’t

Sublium starts at $99.50/year for a single site, with Growth and Scale tiers for businesses that need deeper analytics, upgrade campaigns, cancellation flows, and licenses for multiple sites.

Check the Sublium pricing:

One line in our pricing matters more than the number: zero transaction fees. 

I’ve watched merchants lose a slice of every single renewal to plugins that quietly tax their growth. That model is wrong. 

Your recurring revenue is yours. We don’t take a cut of it, and we never will.

Every plan is backed by a 14-day money-back guarantee, so you can put it to work on a real store before you commit.

We’re also planning to add Sublium Subscriptions to our FunnelKit bundle plan, so stay tuned for that. 

The Bar We’re Holding Ourselves To

Early customers are already migrating real businesses to Sublium, including stores with well over 1,000 active subscribers, moving off legacy tools.

Those migrations are the hardest test a subscription platform can face: existing subscribers, live renewals, real revenue on the line. That’s the bar we measure ourselves against, and the one we’ll keep raising.

Tom Battaglia, one of Woo Subscriptions, successfully migrated to Sublium with over 1,200 active subscribers/subscriptions. He is very happy that he made the switch and recommends Sublium to everyone in his review:

If recurring revenue is part of your business, or you want it to be, take a look at Sublium. 

We built it to put selling, retention, analytics, and growth under one roof. These are the things WooCommerce stores have had to buy separately and stitch together, for years. 

I think it’s the most complete subscription platform we could ship, and we’re only getting started.

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