Help Centre
Everything you need to know about using ScanJunki.
Getting Started
How do I create an account?
Click 'Get started free' on the homepage. Sign up with your email and password, or use Google sign-in. ScanJunki is completely free, so you get full access right away with no card needed.
Do I need to link my eBay account?
It's recommended but not required. Linking your eBay account gives you better, more accurate pricing data and sold history. You can link it during onboarding or later from your account page.
How do I select my marketplace?
During onboarding, you'll choose your primary eBay marketplace (e.g. eBay UK, eBay US, eBay DE, eBay AU). This sets the correct currency and fee schedule. You can switch marketplaces anytime from the header on the scan page.
Is there a trial or a time limit?
No. ScanJunki is free for everyone with no trial period and no expiry. You keep full access for as long as you like, and there's no daily scan limit.
Scanning Products
What barcodes are supported?
ScanJunki supports UPC (12 digits), EAN (13 digits), and ISBN barcodes. You can type or paste the barcode number, or use your phone camera to scan the barcode directly.
How do I use the camera scanner?
Tap the Scan button in the bottom navigation bar. On the scan page, tap the camera icon to open the barcode scanner. Point your camera at a barcode and it will be detected automatically. You can also flip between front and rear cameras.
Why does a scan show no results?
Not all products have active eBay listings. Try switching to a different marketplace, enabling Broad Search in the header, or check that the barcode is correct. Some niche products may have very few listings.
What does the pricing data show?
You'll see average listing prices, price ranges, the number of active sellers, sold count data, and a price distribution chart. The quick info panel shows estimated profit, ROI, and max cost at a glance.
What is Broad Search?
When enabled, Broad Search also searches eBay by the product title (not just barcode). This finds more results for products that sellers don't always list with barcodes. Toggle it from the header on the scan page.
Profit Calculator
How are eBay fees calculated?
Fees are calculated per-category and per-marketplace using the latest 2026 eBay fee schedules. This includes the Final Value Fee, regulatory operating fee (UK/EU only), and per-order fee. Private sellers in the UK and Germany pay zero eBay fees on domestic sales.
What's the difference between Private and Business sellers?
Private sellers pay zero eBay fees on domestic sales in the UK (since Sep 2024) and Germany (since Mar 2023). Business sellers pay the standard fee rates. You can toggle this in Settings.
How do eBay Store subscriptions affect fees?
In the US, having a Basic store or higher reduces your Final Value Fees slightly. UK stores do NOT reduce FVF. You can set your store tier in Settings.
What about VAT?
If you're VAT registered, enable it in Settings and set your VAT rate. The calculator will account for output VAT on the sale and reclaimable input VAT on your costs and fees.
Can I change the sale price?
Yes. The sale price auto-fills from the average listing price, but you can edit it to see how different price points affect your profit.
What is the Multi-Buy Calculator?
Enable it in Settings to help with shop deals like '2 for £13' or '4 for £3'. When enabled, you'll see a deal calculator above the cost price input — pick the quantity and enter the total price, and it auto-calculates the per-unit cost for you.
What is Promoted Listings?
eBay's advertising programme where you pay an ad fee percentage if your item sells through a promoted listing. Set your ad rate in Settings and it'll be included in the profit calculation.
Scan History & Lists
Where are my scanned products saved?
Every scan is saved to your history automatically. View it from the History tab in the bottom navigation. Your history syncs across devices when you're signed in.
Can I favourite products?
Yes. Tap the heart icon on any scan to mark it as a favourite. Filter your history to show favourites only using the star tab.
What is 'Found At'?
When you find a product in a shop, you can tag where you found it (e.g. 'Tesco', 'Charity shop'). This helps you track which stores have the best finds.
How do Lists work?
Create custom lists to organise your finds — e.g. 'Charity shop haul', 'Car boot picks'. Add scanned items to lists to keep track of sourcing trips.
Can I export my data?
Yes. You can export scan history and lists as CSV files from the history page. Every feature is included for free.
Account & Billing
How much does ScanJunki cost?
ScanJunki is completely free. There is no subscription, no card required, and no charge to use it. Every feature is included for everyone.
Is there a Pro plan or an upgrade step?
No. There's nothing to upgrade and no separate Pro plan. Every feature is unlocked for free the moment you sign up.
Do I need to cancel anything?
No. Because ScanJunki is free, there's no subscription to cancel and nothing to manage. Just use it whenever you like.
Can I change my password?
Yes. Go to Account and scroll to the password section. If you signed up with Google, you can set a password to also enable email/password login.
How do I delete my account?
Go to Account, scroll to the bottom and expand 'Advanced options', then click 'Delete Account'. For security we ask you to re-authenticate: enter your current password (or type DELETE if you signed up with Google). This permanently removes your account and your scan history.
Learning
What is the Learn section?
ScanJunki includes built-in courses to help you get started with retail arbitrage on eBay. Access it from the Learn tab in the bottom navigation.
Are courses free?
Yes. Every course and lesson is free for all users, along with everything else in ScanJunki.