Thrift & second-hand · KamraiDee
See what each device earns when it sells.
Log the model and what you paid for each phone, laptop or camera. Your serial stays on your stall. See what each unit earned after repair and fees.
Joining costs nothing. There is no waitlist.
Eight second-hand lines in one app
What do you sell?
Sell more than one line? Each piece sits on its own line, so one stall can carry several.
Why it helps
Know what each piece cost you and what it earns.
Log any kind of purchase.
You can buy by the kilo, by the bale, or one piece at a time.
Each piece gets its share.
Every sale from a kilo or a bale takes an equal share of what's left of the pile's cost.
Profit on each piece you sell.
This is the sold price minus what you paid, any repair or cleaning, and the fees on the sale.
Where it sold best.
See your profit by channel or venue: online, market, shop or a named event, picked when you log the sale.
What you track
Four things you track
Pieces
What you paid, plus any repair, cleaning or inbound shipping as extra cost.
Lots
A kilo or a bale, what you paid and how many pieces it gave.
Sales
The sold price, plus the platform fee, ship-out and packing you type.
Your shop page
Customers pay you directly with your PromptPay QR.
Example: a lot of 20 jackets (made-up numbers)
Twenty jackets from one lot can earn very different amounts
You pay ฿2,000 for a lot of 20 jackets and count them. Each one gets an equal share of the cost: ฿100. A denim jacket sells online for ฿1,200, so the profit on that piece is ฿1,100. An everyday jacket sells at the market for ฿250, so it earns ฿150. Now you know which kind to look for next time.
Doubling your money isn't a 100% margin
Price from margin, not markup
Margin is the share of the sold price you keep after the true cost. With made-up numbers, a piece bought for ฿100 and sold for ฿200 is a 100% markup but a 50% margin. Fees and packing come off first.
Free tools
Free calculators for thrift sellers, no signup
Profit per pieceWhat each piece earns when it sells, after what you paid, repairs, fees, shipping and packing.
Selling fees by channelOne piece, with fees you can change for each place you sell.
How much has soldPieces sold compared with pieces bought in, and how many days the rest will last.
They need no sign-up and save nothing.
From the blog
Related reading
Buy price is not true costYou found it first. You talked the lot down. The hangtag says ฿80 and your brain files that as “cheap.”
Sales is not profitA high sales total is not money kept. See a ฿199 x 30 example, then count true cost on one listing today.
Is your busy shop truly profitable?Understanding the true nature of sales vs profitability
Log each piece. See what it earns.
Free to join. Same price for every shop type. See pricing
Joining costs nothing. There is no waitlist.
FAQ
Second-hand profit questions, answered plainly
How do I work out the profit on a used phone?
Take the price it sold for. Subtract what you paid, any repair or inbound shipping, and the platform fee, shipping and packing on the sale. What's left is the profit on that unit. KamraiDee shows it for each unit you sell, from numbers you type.
Can I record a laptop's or camera's model and serial number?
Yes. Electronics pieces have a model and a serial. The serial stays on your stall and is hidden when you copy a Chat listing.
Do repairs count in the cost of a used phone or laptop?
Yes. Repair, cleaning or inbound shipping goes in as an extra cost on that unit, and the profit on the sale is worked out after it.
What if a unit is dead and won't sell?
Log it as waste, marked damaged or unsellable. Its cost shows as a loss in baht, kept as its own total.
Does KamraiDee test the battery or check a device?
No. It doesn't test batteries or power, and it doesn't certify a device. Any condition you record is your own note.