Rithum (ChannelAdvisor) Alternative for UK Sellers
Rithum (formerly ChannelAdvisor) is built for $50M+ brands - priced at $2,000+/month plus a share of your revenue, on multi-year contracts. If that's not your business, Salync covers the multi-channel core for UK sellers at a flat GBP price, live the same day.
No credit card required · No revenue share · No contract
What changed at ChannelAdvisor?
ChannelAdvisor merged with CommerceHub in 2023 and became Rithum. Public reviews since describe steep renewal increases, rigid workflows, and support decline - on top of a pricing model that was already a subscription plus a percentage of everything you sell, locked in for multiple years.
Revenue share
Reported 2-3% of your sales on top of a $2,000+/month subscription. The more you grow, the more you hand over. Salync takes £0 of your revenue.
Multi-year lock-in
Reviewers describe contracts that are difficult and expensive to exit. Salync has no contract - monthly billing, cancel any time.
Enterprise-only fit
Rithum is genuinely good at $50M+ scale. Below that, you pay enterprise prices for capability you'll never use.
Salync vs Rithum (ChannelAdvisor)
The multi-channel core, without the enterprise price tag.
| Feature | Salync | Rithum |
|---|---|---|
| Starting price | Free / £49/mo | Reported $2,000+/mo |
| Revenue share | None | Reported 2-3% of sales |
| Typical first-year cost | £0-£1,188 | Reported $30k-100k |
| Contract | None | Multi-year standard |
| Public pricing | ||
| Automatic stock sync | ||
| Purchase orders | Enterprise modules | |
| UK marketplaces (B&Q, Tesco, OnBuy…) | ||
| Built for | UK SMB-mid sellers | $50M+ GMV brands |
| Setup time | Same day | Months of onboarding |
Rithum figures reflect publicly reported pricing and review themes at the time of writing; confirm current terms with the vendor.
How to switch from ChannelAdvisor to Salync
Time it around your contract renewal and the migration itself takes an afternoon.
Check your contract end date
Rithum contracts are typically multi-year. Find your renewal date and start your Salync trial 4-8 weeks before it, so you can switch the day the contract lapses.
Export and import your catalogue
Export your products as a CSV and bring them into Salync with the import tool. SKUs, barcodes, descriptions and stock levels all map across.
Reconnect your channels
Link eBay, Shopify, Amazon and your UK marketplaces. Salync matches existing listings to your catalogue by SKU automatically.
Run both in parallel, then exit
Verify sync accuracy for a couple of weeks while ChannelAdvisor winds down - then let the contract end.
The core you actually use, at 1% of the cost
Built specifically for UK eBay, Shopify, and Amazon sellers up to 10,000 products.
Automatic stock sync
Salync checks your shops automatically - every hour on Growth, every 30 minutes on Scale - and updates your stock everywhere after a sale.
Central product catalogue
One place for every SKU. Update a price or description once and it pushes to every channel.
Purchase orders
Raise POs to suppliers, receive stock in, and see every stock movement logged - included on every paid plan.
UK marketplace coverage
eBay UK, Amazon UK, Shopify, WooCommerce, Etsy - plus B&Q, Tesco, OnBuy, Wayfair and more via Mirakl.
Flat GBP pricing
Free up to 50 products, then £49 or £149/month. No revenue share, no contract, no negotiation.
Same-day setup
Connect your channels, import your catalogue by CSV, and be syncing the same afternoon - no onboarding project.
Frequently asked questions
Why do sellers look for ChannelAdvisor / Rithum alternatives?
Since ChannelAdvisor merged with CommerceHub to form Rithum, reviewers report substantial price increases at renewal - some citing multiples of their previous cost - alongside the existing model of a four-figure monthly subscription plus a 2-3% share of revenue, on multi-year contracts that are hard to exit. For anyone below enterprise scale, the platform is simply built (and priced) for a different kind of business.
Is Salync really comparable to Rithum?
For a $100M brand running retail media, dropship networks and 400 marketplaces - no, and it isn't trying to be. For a UK seller managing up to 10,000 products across eBay, Shopify, Amazon and UK retail marketplaces, Salync covers the day-to-day core - catalogue, listings, automatic stock sync, orders, purchase orders, barcodes and reporting - at roughly 1% of the cost.
How much cheaper is Salync than ChannelAdvisor?
Salync is free up to 50 products, £49/month on Growth and £149/month on Scale, flat, with no revenue share and no contract. Publicly reported Rithum costs start above $2,000/month plus 2-3% of revenue - a typical mid-market first year lands between $30,000 and $100,000.
Can I migrate from ChannelAdvisor to Salync?
Yes. Export your catalogue as a CSV, import into Salync with the mapping tool, reconnect your channels, and run in parallel until you're confident. The practical constraint is usually your contract end date - start the trial a month or two before renewal so you're ready to switch the day it lapses.
Keep your revenue. All of it.
Start free, or try a paid plan for 14 days with no card. Flat pricing, no revenue share, no contract.
Free plan · No credit card · 14-day trial on paid plans
Key integrations