Rithum is the company that used to be ChannelAdvisor, and its pricing works the way ChannelAdvisor’s always did: a recurring subscription fee plus a variable fee calculated as a percentage of the sales value you push through the platform, with the percentage itself written into your contract and never published. That structure is confirmed in Rithum’s own service-description pages (rithum.com/terms/, checked 2026-08-14) — the architecture is public, the rate is not. This Rithum review covers what the CommerceHub merger actually changed, what is knowable about Rithum pricing before a sales call, what reviewers report going wrong, and which sellers still have a reason to sign.
Every claim about the company below was checked against rithum.com and dated primary sources on 2026-08-14. This is an evidence-based assessment of public information and dated third-party reviews, not a hands-on benchmark — no self-serve signup exists, so the dimensions that need account access are flagged as such.
What Rithum Is, and What Happened to ChannelAdvisor
The name change was the end of a three-step consolidation, not a simple rebrand.
CommerceHub agreed to buy ChannelAdvisor in September 2022 and completed the acquisition on November 15, 2022, at $23.10 per share in cash; ChannelAdvisor shares stopped trading on the New York Stock Exchange the same day (Rithum press room, dateline “Latham, NY – November 15, 2022”, checked 2026-08-14). Thirteen months later, on December 12, 2023, the combined group announced that CommerceHub, ChannelAdvisor and Dsco would all trade under one new name — Rithum — alongside the acquisition of AI search startup Cadeera. That announcement claimed more than 40,000 companies as customers, over $50 billion in annual gross merchandise value, and 420+ marketplaces and retail sites (rithum.com blog, checked 2026-08-14).
Two practical consequences for an Amazon seller evaluating this in 2026.
First, ChannelAdvisor is not dead — it is a login. Rithum’s own footer lists four separate customer login portals today: OrderStream, DemandStream, Dsco, and ChannelAdvisor (rithum.com, checked 2026-08-14). What you buy is a Rithum contract; what a long-standing customer signs into may still carry the old name. Rithum’s homepage now claims “more than 40,000 of the world’s largest brands and retailers” and “600+ marketplaces in the Rithum network” (checked 2026-08-14) — the customer figure is unchanged from the 2023 announcement while the channel count has grown.
Second, the review corpus is split across two companies. A large share of what you will read about “ChannelAdvisor” describes an independent, publicly traded SaaS company that no longer exists; a large share of what you will read about “Rithum” describes a private-equity-held group. Insight Partners made a strategic investment in the CommerceHub business on December 2, 2020, joining existing investors GTCR and Sycamore Partners (press release dated December 2, 2020, now hosted under the Rithum brand, checked 2026-08-14). Rithum has retro-branded its old press archive, which is worth knowing before you cite anything from it: the page carrying the November 2022 ChannelAdvisor closing announcement now sits at a URL containing “rithum-completes-acquisition-of-rithum”.
Rithum Pricing: What Is Published, and What Sellers Report
No price is published. Checked 2026-08-14, rithum.com/pricing/ and rithum.com/plans/ both return HTTP 404, and no pricing link appears in the site’s navigation or footer. Capterra’s Rithum listing shows “Contact vendor for pricing”, no free trial and no free version; Software Advice’s listing shows “Connect with an advisor for pricing” and “Pricing available upon request” (both checked 2026-08-14).
What is published — and what most write-ups of this product miss — is the fee architecture, which Rithum documents in its own service descriptions. The Marketplaces Module page lists three fee types: “Upfront Fees, Startup Fees, Setup Fees, Launch Fees, and/or additional fees may also apply, as stated in the SOW”; “A recurring Subscription Fee for Self-Service access to the Marketplaces Module, or a recurring Service Fee for Managed Services”; and “A variable GMV Fee for use of the Marketplaces Module” (rithum.com/terms/marketplaces/, checked 2026-08-14).
The same pages define the base the percentage runs on. GMV means “the sum equal to the value of Customer’s products processed for sale using any Service (for example, sold on a Network Site or Customer’s e-commerce website)”, and it “excludes shipping, sales tax, and, where applicable, VAT and GST” (checked 2026-08-14). The Commerce Core description adds the timing: the monthly GMV fee “shall be calculated at the end of the calendar month in which it was accrued”, applying the percentage rate stated in your SOW; annual-reset contracts bill on the difference between cumulative year-to-date GMV and the prior month’s cumulative figure (checked 2026-08-14).
The rate lives in the SOW, so no public figure can be trusted as yours. That is the honest answer to “what percentage does Rithum take” — the mechanism is documented, the number is negotiated per contract.
On what triggers the percentage: ChannelAdvisor’s SEC filings from its public-company era described a customized structure in which a portion of the GMV-based subscription fee is fixed, based on a minimum amount of GMV the customer expects to process, and the remainder is variable, charged as a percentage of GMV or ad spend exceeding that committed minimum — with customers committing to higher minimums in exchange for a lower rate on the committed portion, and a higher rate on the excess. Treat that as documentation of the pre-2022 ChannelAdvisor model, not as a current Rithum rate card; the terms pages above show the same committed-plus-variable shape survived the merger.
Third-party figures, split by era:
| Figure | Reported as | Era it describes | Status |
|---|---|---|---|
| No published price of any kind | rithum.com, checked 2026-08-14 | Rithum, current | Verified absent |
| Subscription above $2,000/month plus 2–3% of revenue | Competitor blogs and review round-ups in our research corpus | Mostly ChannelAdvisor-era reporting, repeated for Rithum | Third-party, unverified |
| Mid-market first year of roughly $30,000–$100,000 all-in | Same third-party round-ups | Mostly ChannelAdvisor-era | Third-party, unverified |
| Annual fee increases of about 4% per year | One dated Trustpilot reviewer, 2026-01-15 | Rithum, current | Single customer account |
| Cancelled orders counted toward billable GMV | One dated Trustpilot reviewer, 2025-04-02 | Rithum, current | Single customer account |
Two of those deserve care. The “$2,000/month plus 2–3%” figure circulates almost entirely through pages published by competing platforms, which is not a neutral source; no Rithum page confirms it. The cancelled-order complaint is one account, but it is specific and it is consistent with the published GMV definition, which keys off products “processed for sale” rather than off settled revenue. That reviewer wrote: “We had over 700 cancelled orders do to an integration issue with a new marketplace and Rithum billed us for those orders.” [sic] (Trustpilot, 2025-04-02). Whatever your rate turns out to be, get the treatment of cancellations, returns and test orders written into the SOW.
What to ask for in writing before a demo: the subscription fee at your channel count, the GMV percentage and the committed minimum it applies above, the setup/launch fee, the contract term, the annual uplift, and the definition of billable GMV.
What the Platform Actually Does
Rithum sells to two sides of the same trade, and its own navigation splits accordingly (rithum.com, checked 2026-08-14).
For brands, the product set is Marketplace Listings, Inventory Management, Order Management, Commerce Insights & Reporting, Retail Media Advertising, and Paid Search & Shopping Ads. For retailers, it is Dropship, Private Marketplaces, Commerce Insights & Reporting, Shipping Optimization, Delivery Date Prediction, Shipping Label Management, and Delivery Insights and Reporting.
The Marketplaces Module description is the plainest statement of the seller-side product: it “allows a Customer to manage products on multiple marketplaces from a single user interface”, with “inventory and listing management, order and fulfillment management, and performance reporting” (rithum.com/terms/marketplaces/, checked 2026-08-14). Included components are Inventory, Marketplace Connectivity, Orders/Shipments, Reporting, Admin, Alerts and Notifications, Developer Network, and Limited Flex Feeds.
The Commerce Core description also publishes platform limits that are useful as a scale signal: 350,000 Amazon products, 250,000 eBay listings, 200,000 online store listings, and 600,000 first-party retail inventory items (checked 2026-08-14). Those are catalogue sizes almost no private-label Amazon business will approach.
The dropship and retailer-network half is the part competitors do not replicate. If your requirement is “list on Amazon, eBay and Walmart from one catalogue”, the market is crowded. If it is “be a supplier inside a large retailer’s dropship program”, the field narrows sharply, and that is the inherited CommerceHub capability rather than the inherited ChannelAdvisor one.
What Reviewers Complain About
The complaint pattern is unusually consistent across sources and across the name change. Our research corpus holds 16 collected items for this vendor — the largest for any brand still unreviewed on this site — of which nine are dated Trustpilot reviews rated 1 or 2 stars, spanning 2024-03-18 to 2026-03-10.
Support and account management. This dominates. A 2-star reviewer on 2024-11-06 wrote: “Powerful tool. Customer service is absolutely useless.” A 1-star reviewer on 2024-07-06 listed “WORST CUSTOMER SUPPORT - I was yelled at and demeaned by 2 different project managers” as complaint one of five. Reviewers on G2, as summarised in third-party round-ups, describe a historically email-only, single-threaded support model on the ChannelAdvisor side, including one case running to a 27-message thread over several weeks on an Amazon account issue.
Implementation length and rigidity. Reviewers describe implementations that were slow to get fully live and customization that is rigid where a workflow does not match the platform’s assumptions — a pattern echoed in a competitor’s published analysis of 40 reviews , which lists steep learning curve, lengthy implementation, pricing, slow support and management effort as the recurring exit reasons.
Reliability and remedy. A 1-star reviewer on 2026-01-15 wrote: “If their system goes down for 4 days… no compensation for lost sales and extra staff needed.” A 2024-08-23 reviewer described integrations that “only work 90% of the time” and products being delisted while issues were fixed.
Contract exit. Multiple reviewers describe being locked in: “A CONTRACT THEY WONT LET YOU OUT OF EVEN IF YOU ARE DEMEANED AND TALKED DOWN TOO AND ITS OBVIOUS IT DOESNT WORK FOR YOUR BUSINESS” (Trustpilot, 2024-07-06). [sic]
Two caveats before you weigh this. Trustpilot skews negative for enterprise software bought on annual contracts, because satisfied buyers rarely post; and Capterra and Software Advice both show Rithum at 3.8 out of 5 across 61 reviews (checked 2026-08-14), which is a middling score, not a failing one. The signal is not “the platform does not work” — it is that the cost of getting it to work is concentrated in implementation and support, which is exactly where the fee structure gives you the least leverage.
Rithum Across Our Eight Dimensions
Every tool on this site is read against the same eight dimensions — see our scoring methodology . Rithum has no trial and no self-serve tier, so this assessment rests on documented capability and dated public reviews rather than account access.
- Accuracy — Not independently assessable. Listing and inventory sync accuracy cannot be inspected without a contracted account; reviewers report marketplace integrations that mostly work with periodic breakages, which is a reliability observation, not a measured error rate.
- Ease of Use — Weak. Steep learning curve and a real ramp-up period are the most repeated criticisms across G2 summaries and Trustpilot alike.
- Depth — Strong. Listings, inventory, orders, retail media, paid search, dropship and delivery-date prediction in one platform is a scope no mid-market listing tool matches.
- Automation — Broad, but implementation-dependent. The capability is there; reviewers consistently say the work of configuring it is not small, and rigidity appears where your workflow differs from the platform’s model.
- Team Fit — Built for teams. This is software with project managers, onboarding managers and account managers attached. A one- or two-person operation is paying for a layer it cannot use.
- Support — Weakest dimension on the evidence. Support quality is the single most common complaint across every source we collected, and it spans both the ChannelAdvisor era and the Rithum era.
- Pricing — Poor on transparency, before any judgment on value. Subscription plus a contracted percentage of GMV plus setup fees, none of the rates published. You cannot budget, and you cannot compare, without a sales call.
- Stage Fit — Enterprise and upper mid-market only. The published platform limits and the fee model both point at businesses with large catalogues and multi-channel complexity.
Who Still Needs Rithum
Rithum is a reasonable candidate if you:
- Need to sell into retailer dropship programs as a supplier, not just onto marketplaces — the CommerceHub-inherited retailer network is the genuinely hard-to-replace asset.
- Run a catalogue large enough that the published limits are a feature rather than trivia, across many regional marketplaces at once.
- Have staff who own the platform. Every account that reports success in public reviews has dedicated operations people; every account that reports disaster tends to describe buying it without them.
- Can negotiate. Because everything is in the SOW, the buyers who do well are the ones who treat the GMV rate, the minimum, the uplift and the exit terms as negotiable line items.
Skip it if you sell mainly on Amazon with a modest catalogue, want a price you can compare before a demo, cannot absorb an implementation project, or are moving fast enough that a multi-year commitment is a liability. A percentage-of-GMV fee also means your software bill grows with your revenue whether or not the software did anything to earn it — the arithmetic gets worse exactly as you succeed.
The Realistic Alternatives
The mid-market band publishes prices, which is the comparison Rithum does not let you make. Our Sellercloud alternatives comparison and Linnworks alternatives comparison both rank that band by published entry price and contract terms. Extensiv (Skubana) is the closest quote-only comparable if multi-node order routing is your real requirement, and it is equally opaque on price. For a channel-by-channel view of what listing tools actually publish and support, our sister site’s guides to multichannel listing software and inventory management software compare official pages rather than sales claims. Older but still useful for the shape of the category: multi-channel listing software round-up . Where Rithum fits in a full toolset is covered on our enterprise stack page .
Get quotes from two published-price platforms before you take the Rithum demo. It costs a week and it is the only way to know what the percentage is buying you.
FAQ: Rithum and ChannelAdvisor
Is ChannelAdvisor still available?
Yes, as part of Rithum. CommerceHub completed its acquisition of ChannelAdvisor on November 15, 2022, and the combined group renamed itself Rithum on December 12, 2023 (rithum.com, checked 2026-08-14). ChannelAdvisor still appears as one of four customer login portals on Rithum’s site today, so existing customers may sign in under the old name while contracting with Rithum.
How much does Rithum cost?
Rithum publishes no price; rithum.com/pricing/ and /plans/ return 404 (checked 2026-08-14). Its service descriptions confirm the structure — a recurring subscription or service fee, a variable GMV fee at a percentage stated in your SOW, plus possible upfront, startup, setup and launch fees. Third-party round-ups repeat a figure above $2,000/month plus 2–3% of revenue, but that circulates mainly through competitor-published pages and is not vendor-confirmed.
What is the Rithum GMV fee based on?
GMV is defined on Rithum’s terms pages as the value of the customer’s products processed for sale using any Service, excluding shipping, sales tax and, where applicable, VAT and GST (checked 2026-08-14). It is calculated at month end and billed at the SOW rate. One Trustpilot customer reported in April 2025 that cancelled orders were included in billable GMV, so confirm cancellation and return treatment in writing.
Is there a free trial of Rithum?
No. Capterra and Software Advice both record no free trial and no free version, and Rithum’s site offers no self-serve signup — the only route is a demo request (all checked 2026-08-14).