Sell everywhere.
Manage in one place.
Sparknautic syncs inventory and orders between Amazon and eBay in real time. One catalog, two marketplaces, zero oversells.
14-day free trial · Setup in under 5 minutes · Cancel anytime
Your entire inventory operation
in one dashboard
No more switching between tabs, updating spreadsheets, or checking two seller portals. Sparknautic handles it all.
Push products to Amazon and eBay from a single catalog. Map categories, set channel-specific pricing, and go live in minutes.
Sell on one channel — stock updates everywhere in under 5 minutes. Eliminate overselling. No more "sorry, out of stock" emails.
Every order from every channel in one view. Filter, sort, fulfill, and track shipments without context-switching between platforms.
Set different prices per marketplace. Factor in fees, shipping costs, and margins automatically. Maximize profit on every channel.
Import products via CSV, bulk edit prices, mass update stock levels. Handle thousands of SKUs in seconds, not hours.
Track sales by channel, spot your top performers, monitor inventory value, and get automated low-stock alerts before stockouts happen.
Start selling across both channels
in under 30 minutes
Most sellers are fully set up during their lunch break.
Link your Amazon and eBay accounts via secure OAuth. Under 2 minutes per channel.
Pull in your existing catalog via CSV or from your connected channels. We merge duplicates automatically.
Push products to any marketplace with one click. Map categories, set pricing, and go live instantly.
Inventory syncs every 5 minutes. Orders import automatically. You focus on sourcing and growing.
Start free. Scale when
you're ready.
No hidden fees. No contracts. Upgrade, downgrade, or cancel anytime.
- 1 marketplace channel
- 25 products
- 50 orders/month
- Basic analytics
- Email support
- Both Amazon & eBay
- 250 products
- 500 orders/month
- CSV import/export
- Bulk operations
- Priority email support
- Both Amazon & eBay
- 2,500 products
- 5,000 orders/month
- Advanced analytics
- Warehouse management
- Low-stock alerts
- Unlimited products
- Unlimited orders
- API access
- Custom integrations
- Dedicated account manager
- Phone support
Built to solve real
seller headaches
If you sell on both Amazon and eBay, you already know these problems. Here's how we fix them.
Manual stock updates lead to oversells. The moment one channel sells out, you have minutes before the other fires off an order you can't fulfill — refunds, bad reviews, account standing damage.
Two portals plus a spreadsheet wastes hours each week. Editing the same SKU three times, hunting for the right photo, double-checking prices — it doesn't scale past a couple hundred listings.
Orders scattered across two dashboards are easy to miss. A late-fulfilled eBay order tanks your seller rating. A missed Amazon order costs you Buy Box eligibility.
How Sparknautic stacks up
More features, lower price. See why sellers prefer Sparknautic over the alternatives.
| Feature | Sparknautic | Sellbrite | Listing Mirror | Ecomdash |
|---|---|---|---|---|
| Starting price | $0/mo (free) | $19/mo | $24.99/mo | $60/mo |
| Channels in lowest paid plan | Amazon + eBay | 1 channel | 3 channels | 2 channels |
| Real-time inventory sync | ||||
| Smart repricing | — | — | ||
| Listing templates | — | — | ||
| CSV bulk import | — | |||
| Order routing | — | — | ||
| Free plan available | — | — | — | |
| 14-day free trial |
Stop juggling spreadsheets.
Start selling smarter.
Free to start. No credit card required.
Setup takes under 5 minutes.
Common questions
What is Sparknautic?
Sparknautic is a multi-channel inventory management platform for sellers on Amazon and eBay. It syncs stock and orders between marketplaces in real time so sellers never oversell or miss an order.
Which marketplaces does Sparknautic support?
Amazon and eBay are supported at launch. Both marketplaces sync inventory and orders in real time from a single dashboard.
How often does inventory sync?
Every 5 minutes, automatically. You can also trigger a manual sync from any channel detail page.
Is there a free plan?
Yes. The Free plan supports 1 marketplace channel, 25 products, and 50 orders per month — no credit card required.
How does Sparknautic prevent overselling?
When a sale happens on one marketplace, Sparknautic reduces the stock quantity on the connected listing on the other marketplace within 5 minutes — before another buyer can purchase what's already gone.
Do I need a credit card to start?
No. The 14-day free trial does not require a credit card. You only enter payment information when you choose to upgrade after the trial.