A clear path
to your first listing.
Gruffin brings your inventory and eBay workflow together on Windows. Here is how setup will work when public release opens.
Install Gruffin
Download the public installer from this website when available. Setup creates Desktop and Start Menu shortcuts, so you can open the app without browsing through folders.
Sign in and choose your plan
Open Gruffin, create or sign in to your account, then open Subscription. Review your plan, billing interval, any trial, and renewal terms before completing Stripe checkout for your signed-in workspace.
Connect your eBay seller account
Open Settings → Connections → Connect eBay Seller Account. Review the permissions on eBay’s sign-in page, return to Gruffin, and refresh connection status.
Refresh your workspace
Open Dashboard → Refresh to load your connected listings and sales. Sales analytics require Professional or Enterprise access.
Research, review, and list
Start in Listings or Photo to Listing. Check imported product details and source references against your exact item. Add your own photos, condition, price, and quantity before publishing.
Updates after installation
Your inventory and account settings are stored separately from the installed app. Once signed automatic updates are available, installed copies can update at the next launch without downloading the installer for every update.
Platform availability
Windows 10 / 11 x64: the main selling workspace is in owner testing. Public installer downloads remain closed until signing and final acceptance are complete.
Android: a native owner preview includes linked inventory views and local draft, barcode, photo and sharing workflows. It is not yet a production Google Play release or a complete replacement for Windows.
iPhone / iOS and Mac / macOS: native apps are in development. Apple builds, signing and device testing remain pending; no public App Store or Mac download is available.
Native feature availability differs from Windows. Current device access remains a read-only preview with local draft tools. See current platform status before choosing a device.
Amazon publishing is not enabled. Combined eBay variation listings and shipping-label purchases use eBay Seller Hub.
Need a hand? Visit Gruffin Support.
Bring your inventory and your column names
Open Inventory → Bulk Import to bring in CSV, .xlsx, or .xls data. Map your item ID or SKU and the fields you want to import. “Use my spreadsheet column headings in Gruffin” is on by default, and merging is the starting choice. Enable replacement only when you intend to replace the app’s inventory.
Use Inventory → Column names whenever you want different labels. These are display names; renaming them does not rename the inventory fields or break a saved Excel mapping.
Link Excel for reviewed sync
Open Inventory → Workbook setup. Choose a .xlsx file, its worksheet, and the header row. Click Read columns, then map your unique item ID to SKU and select the other columns to sync. Save the link and review the preview before applying any changes.
Excel write-back starts off. Leave it off for import-only sync, or enable it for a workbook you want Gruffin to update. Then open Inventory → Excel sync when you want to compare the two inventories. Use Excel updates the app; Use Gruffin writes an approved app value to Excel. Conflicts default to Skip. Close Excel before applying write-back.
You can reorder columns in Excel while keeping their headings. If you rename an Excel heading, reopen Workbook setup and review the mapping. Renaming a heading inside Gruffin only changes its display label.
Let paid eBay sales update matching stock
Gruffin checks orders at startup and every 15 minutes while the app is open. You can also refresh Orders for a check now. A paid sale updates its exact matching SKU with the product sale price, sold date, quantities, and sales channel. A stored order-line record prevents repeat refreshes from counting the sale twice. Unmatched SKUs remain unchanged until matched.
Receive returns before restocking
Open Returns → Check marketplace returns to refresh the queue. A reported return request does not increase stock. Select a request, click Receive selected return, and confirm physical receipt and inspection. Enter the quantity, inspected condition, and location. Check the sellable-inventory option only when those units can be sold again.
Leave sellable restocking off for damaged or uninspected items. For a partial arrival, leave “This completes the pending return request” off until the rest of that request is resolved. Use the no-physical-return option, with an explanatory note, to record a refund-only outcome or close a case without moving stock.
Gruffin keeps the original sale history and a separate return record. Refund amounts entered here are records only: issue the actual refund through eBay or the original payment provider. Marketplace feed availability and lookback limits still apply.
Use the register at your counter
Open Point of Sale. Scan a stored barcode or enter a SKU, then press Enter. Review the ticket, quantity, and unit price. For cash, enter the amount received and review the change due. Card checkout opens Stripe in a browser and finishes only after payment is confirmed.
F2 focuses scanning, F4 opens inventory search, and F8 moves to payment. Stripe card payments require the account connection to be set up first.
Watch the guided Gruffin workflow tour →
Research once, review each destination
Start with an exact model, barcode, name or photo. Confirm the product, dimensions, finish and variant before selecting details to use. Quick Lister carries researched fields into a draft; unknown facts still need your review. Choose a connected destination and review its prepared listing. Assisted forms for Facebook Marketplace, Mercari and Poshmark may still require manual entries and final publication on that marketplace. Shopify and WooCommerce require their own connection and setup.
Set your seller identity and listing style
Account identity comes from your sign-in. Use seller defaults for business details and your logo, then review the template and branding in the listing description. Select your saved eBay payment, shipping and return policies by name and enter the actual item shipping origin. A freight quote policy controls freight terms; a comparison price is not a shipping quote.
Keep control of AI changes, drafts and photos
AI title and description suggestions stay separate until you accept them. Save Draft confirms when saving succeeds and explains when a retry is needed. Blank price or quantity fields can remain unfinished in a saved draft; complete them before continuing. Select local photos or use the phone QR link. Chosen photos stay in the draft while previews load or fail; use Retry preview or remove a failed photo before continuing.
If a listing submission has an unknown result, resume the original saved draft and use its recovery flow. Do not create another listing until the first attempt is checked.
Compare the item price and delivered total
Review matching items, condition, variants and package quantity. Price comparisons distinguish the USD item price from known buyer shipping. You choose whether to use a suggestion; asking-price comparisons and margin estimates do not guarantee a sale or profit.