circuly vs. Chargebee, Zuora, Recurly & More

The software that runs Netflix subscriptions cannot run your bike or stroller or furniture or appliance or any other consumer durable product subscription. The operations are too different. And that is what this guide dives into.

Chargebee, Zuora, Recurly, Subbly, Billwerk, Nitrobox, Loop all talk about subscription lifecycle management, recurring billing, dunning, churn reduction. They all look plausible in a product comparison spreadsheet.

And then you try to find where to put "the bike is currently with customer #1,847, it needs a service check when it comes back, and if they want to buy it at the end of the term the price should reflect the 8 months of payments they have already made" — and none of them have anywhere to put that.

The reason why that happens is not because it's a missing feature but a missing category.

Take a look at what Bugaboo said in an interview with circuly:

‍“Our first rental pilot was unsuccessful because we tried to incorporate the rental business into our existing ERP tool and into our existing process of sales, finance, and logistics—which was a huge mess and didn’t work out.” — Rolf Smeding, Director of New Business Development at Bugaboo

Subscription management software has historically been built for one type of subscription: digital. Software licences, streaming services, SaaS products, media memberships all fall under the same category, that is a model in which the subscription is a fianncial record.

When it ends, the product does not come back because there is no asset to track, no condition to grade, no return to schedule, no inventory to update.

Physical product subscriptions, like bikes, strollers, furniture, appliances, medical devices, cars, electronics, work completely differently.

The subscription is not just a billing cycle. It is a relationship between a customer and a physical object that exists in the world, moves between locations, wears over time, and needs to be managed across its entire lifecycle.

This page explains exactly what that difference means in practice, why it matters for your operations, and where each type of platform belongs.

The two categories of subscription software

What digital billing platforms are built for — and who uses them

Before going further, it is worth being clear: Chargebee, Zuora, and Recurly are excellent products. They are just excellent products for a different problem.

Chargebee describes itself as providing revenue infrastructure for "AI, SaaS, and consumer subscription businesses."

Its industry pages cover Gen-AI, B2B SaaS, Business Services, Media & Publishing, E-Commerce & Retail, and Education. Its customers include Calendly, Linktree, and Toyota — all digital subscription operations. It excels at complex billing logic, usage-based pricing, revenue recognition, and financial reporting for businesses where the subscription is a financial contract, not a physical object.

Zuora was founded by a Salesforce executive with a vision for the "subscription economy" — meaning software, media, and services businesses moving from one-time transactions to recurring revenue. Its marquee customers are Zoom, The Seattle Times, and 24 Hour Fitness. Its platform is organised around quote-to-cash: the cycle from contract to invoice to revenue recognition, with no physical asset in the middle.

Recurly positions itself explicitly as built for "high-volume digital commerce." Its documented use cases are SaaS companies managing recurring software subscriptions, digital media providers, and e-commerce subscription boxes — meaning consumables and replenishment, not durable goods that return.

Subbly is purpose-built for subscription box businesses and DTC consumables. Think coffee delivery, beauty boxes, and "subscribe and save" on products that get used up and need replacing. Not products that come back, get serviced, and go out to the next subscriber.

Nitrobox (now Instellix) targets SaaS, IoT, mobility, and digital platform businesses, with a focus on hybrid billing models combining recurring fees and usage-based charges — again, for digital and service models, not physical asset lifecycle management.

Billwerk+ (now Frisbii) focuses on the DACH region for small to mid-sized businesses with simple digital subscription models.

Loop focuses on subscription retention and cancellation flows for e-commerce businesses, primarily consumables and DTC brands on Shopify.

None of these platforms were designed around a world where the product physically moves.

The fundamental operational difference

Here is the simplest way to understand why this matters.

When a digital subscription ends, there are two possible outcomes: the customer renews, or they cancel. That is it. There is nothing else to manage.

When a physical product subscription ends, there are five possible outcomes — and each one triggers a completely different operational workflow.

A digital billing platform knows two of those outcomes. circuly manages all five — with the asset record, billing, customer communication, and operational workflow all moving together in each case.

This is not a gap that can be patched with integrations or workarounds. It is a foundational architectural difference. A platform built around the idea that a subscription is a financial record cannot also natively track where a physical unit is, what condition it is in, who it is currently assigned to, when it was last serviced, and what it should cost to buy out.

What physical product subscription management actually requires

Beyond the five outcomes, there are operational capabilities that digital billing platforms simply do not have — because they have never needed them.

The industries that tell the story

One of the clearest ways to understand the category divide is simply to look at which industries each type of platform names on their website.

Notice something. "Consumer goods & retail" appears on Recurly's list. But when you look at what that means in practice — consumables, replenishment, subscribe-and-save — it is a fundamentally different operational model from a bike subscription or a stroller rental. The consumable ships and is used up. The durable goods product ships, gets used, comes back, gets assessed, gets sent out again. Same word, completely different business.

When you try to use a digital billing platform for physical products

It is worth being specific about what happens in practice when a physical product subscription business tries to use a platform built for digital subscriptions.

Billing works. Everything else becomes a workaround.

You can set up recurring payments. You can send invoices. You can manage dunning. But then a customer wants to buy the product at the end of their subscription — and your billing platform has nowhere to record that a physical unit has transferred ownership, stop billing, and calculate a residual value based on payments already made. You build a spreadsheet for that.

A product comes back and needs a condition assessment before going to the next subscriber. Your billing platform has nowhere to put "Grade B, scratched left panel, serviceable." You build a spreadsheet for that too.

A payment fails on month four of a twelve-month commitment and the product is still with the customer. Your billing platform treats this like a failed payment on a SaaS subscription — it does not know there is a physical asset out in the field that you may need to recover if the customer does not resolve the payment. You handle that manually.

After a year, you have a subscription management platform and six spreadsheets. That is the common outcome. It is not a technology failure — it is a category mismatch.

What circuly is built for

circuly is a subscription management platform built specifically for physical and consumer durable product businesses operating subscription, rental, or lease models.

Every feature in circuly assumes there is a physical object involved. The subscription record is linked to an asset record. The billing cycle is connected to contract terms that are specific to rental and lease agreements. The five possible outcomes of a physical product subscription each have a native workflow. The customer-facing portal shows a live buy-out price, initiates return requests, and manages swaps — not just billing updates.

The products circuly is built for:

Bikes and e-bikes. Baby strollers and kids' gear. Consumer electronics and appliances. Furniture and home goods. Medical equipment and devices. Sports and fitness equipment. Cars and vehicles. Any consumer durable that ships, gets used over time, and comes back at the end of a subscription.

The business models circuly supports:

Subscription and rental. Product-as-a-service. Lease. Subscribe-to-own and rent-to-own. Try-before-you-buy. Fleet and B2B equipment programmes. Circular economy models where return, refurbishment, and redeployment are part of the operational cycle.

The bottom line

Subscription management software is not one category. It is two.

Digital billing platforms — Chargebee, Zuora, Recurly, Subbly, Billwerk, Nitrobox — are well-built tools for managing subscriptions where the product is intangible. If you are selling software access, streaming, content, or consumables, they are excellent choices.

Physical product subscription management is a different problem. The product moves. It wears. It gets returned. It gets serviced and sent out again. Sometimes it gets bought. Sometimes it gets swapped. Managing that across hundreds or thousands of subscribers is an operational challenge that a billing platform is not designed to solve.

If your subscription involves a physical product — a bike, a stroller, a sofa, a medical device, an appliance, a piece of electronics — the right tool is one built around that reality from the ground up.