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Software for shops that buy and sell used phones, tablets and computers

Stop guessing buy prices. See the profit before you pay.

It shows the most you should pay, based on what your shop has actually sold, works out the true profit on every unit after repairs and fees, and warns you about slow stock before your cash gets stuck.

No card needed · After 14 days you can stay on the free plan with all your data

  • Built for a 2–3 minute intake
  • Works on your phone, nothing to install
  • Move your data over from Excel yourself
  • Other shops never see your data
Valuation screen: expected sell price, Safe Buy, confidence, liquidity, risk and Price Curve

Supported today

Product categories
4
Models
119
Specs to choose from
421
Brands
11
  • Ready for 3 shop types
  • Partly ready for 1
  • In development for 1

Did this sale really make ฿2,500 profit?

Worked example: iPhone 13 128GB bought for ฿12,000, sold for ฿14,500, paid by card

Profit in your head

Sold for
฿14,500
Purchase price
−฿12,000
Sale price − purchase price ฿2,500

True profit worked out by the system

Sold for
฿14,500
Purchase price
−฿12,000
Battery replacement
−฿900
Card fee 3%
−฿435
Delivery to the customer
−฿100
True profit ฿1,065

57% of the profit went on costs nobody counted. The system ties every cost to its unit, so you see the true profit of every unit and every month. The figures above are an illustration.

True profit report per unit: net profit, revenue, margin, ROI and days to sell
In the app: the true profit report (demo store, made-up data)
How to work out true profit

Where used-device shops lose money

and how the system helps close each leak

  • Paying too much

    Prices from memory, then the sale leaves little profit or a loss

    How the system helps: See the most you should pay (Safe Buy) before you hand over cash, with a confidence level

    Starter and up
  • Profit leaking away

    Repairs, batteries, shipping and card fees never get counted as cost

    How the system helps: Every cost is tied to the unit, so you see true profit per unit and per month

  • Cash tied up in slow stock

    By the time you notice, a unit has sat for a month and the market price keeps falling

    How the system helps: Morning alerts on aged stock with a suggestion, such as cutting the price 5% or 10%

  • Selling below cost without noticing

    Prices set from the purchase price, forgetting repairs and fees

    How the system helps: Alerts on units priced below their true cost, and on units whose market price has dropped below cost

  • Duplicate or locked devices

    IMEIs checked by eye against a notebook, easy to miss on a busy day

    How the system helps: Scan the IMEI for an instant duplicate check, and the checklist flags account-locked units and IMEI mismatches

  • Staff overpaying and nobody knows

    No record of who paid what, and units go missing between branches

    How the system helps: Staff without the right need an approver to pay above your limit or above Safe Buy, every action is logged, and transfers stuck over 3 days raise an alert

Buy a unit on a single screen

Designed to take about 2–3 minutes per unit, on a phone or a computer. The screens below are real, from a demo store with made-up data.

  1. 1

    Scan the IMEI or search the model

    Pick the model and spec from the catalog; duplicates are checked for you

  2. 2

    Inspect with the checklist

    Grade it A–D and record battery health and faults

  3. 3

    See what to pay

    Expected sell price, Safe Buy, confidence and risk reasons

    Starter and up
  4. 4

    Pay and print

    Record the payment, print the purchase voucher and add it to stock

Receive item screen with valuation and inspection panels
Receive item: inspection, valuation and payment on one screen
Store overview on mobile: cash, capital tied up, today's sales and to-dos
Overview on mobile

The daily chores it takes off your hands

Notebook, Excel and LINE compared with the system

  • End-of-day totals

    The old way: Add up the notebook and slips one by one

    With the system: Sales, cash and profit update as soon as you record them

  • Stock count

    The old way: Count every unit and check it against the notebook

    With the system: Stock changes with every purchase, sale and transfer; a missing unit is written off with a reason

  • Finding a past unit

    The old way: Search the notebook and LINE chats

    With the system: Search by IMEI, serial, customer name or phone, or document number

  • Paperwork

    The old way: Hand-written purchase slips

    With the system: Print purchase vouchers and receipts on A4 or 80 mm, with signature lines

  • Fixing a mistake

    The old way: Cross it out or edit the file, with no record of who did it

    With the system: Void it with a reason; the original stays and can be traced

  • Several branches

    The old way: Phone each branch

    With the system: See stock and sales for every branch in one place

    Intelligence and up
  • Lost data

    The old way: Lose the file or the phone, lose the data

    With the system: Data lives on the server, not on any one phone, and you can export it any time

Features you can use today

Try every feature for 14 days. Features with a plan label are included from that plan up.

Buying and inspection

  • Pick the model and spec from the catalog, no typing model names
  • Request a model you sell that is missing
  • Scan or type the IMEI: it is checked for you, and a unit still in stock can't be bought twice
  • Inspection checklist of 9–16 points per category, flagging account-locked units and IMEI mismatches
  • Grades A–D and battery health
  • Seller records with the ID number encrypted and PDPA consent; the voucher carries the seller's ownership statement

Valuation and decisions

Starter and up
  • Expected sell price range
  • Safe Buy with an itemised breakdown
  • Confidence and sample size, and a plain warning when data is thin
  • Price curve: quick sale, balanced or max profit
  • Risk level with reasons and a 0–100 liquidity score
  • Record market, dealer and quoted prices
  • Paying above Safe Buy needs a reason; staff without the right need an approver

Selling

  • Multi-unit bills with discounts and trade-ins
  • Split payments (cash, transfer, PromptPay, card) and change for cash
  • Receipts on A4 or 80 mm with the shop warranty
  • Returns, and voids with a reason instead of deletes
  • Search by IMEI, serial, customer name or phone, and document number

Costs, profit and cash

  • 10 kinds of cost per unit
  • Card fees split across the units on a bill, by price
  • True profit per unit with margin, ROI and profit per day
  • Cash by drawer, bank, PromptPay and card account
  • Repair jobs for stock units, with costs added automatically Starter and up

Stock and insights

  • Stock age: slow after 30 days, aged after 60 (adjustable)
  • Morning alerts: aged stock, prices below cost, overdue repairs, stuck transfers and negative cash
  • Email alerts Pro and up
  • Store Intelligence: what to do today, most urgent first Intelligence and up
  • 10 reports
  • Export reports to Excel or CSV Pro and up
  • Branch transfers Intelligence and up

Team, security and data

  • 13 roles, per-person permissions and branch limits
  • Purchase approval limit and discount permission
  • Audit log of every action
  • Two-factor sign-in, required for owners and admins
  • Customer consent per purpose
  • Import from Excel or CSV, and undo it within 30 days
  • Owners can export all their data on every plan
  • Works on phones, tablets and computers, installs as an app, in Thai and English

In development, not open yet

Each one opens only after its legal, privacy or data-quality review, or once there are enough users

  • Pawn management
  • Gold, silver and jewellery
  • Dealer Exchange for selling stock to dealers
  • Province price benchmarks (anonymous totals)
  • Cross-shop duplicate IMEI signal (store count only)
  • Anti-money-laundering reports
  • Machine-learning price advice
  • Public used-price index

More than a sales record

A point-of-sale app tells you what you sold. This helps you decide before you pay for the stock.

Store Intelligence: today's to-do list, most urgent first
The Store Intelligence screen comes with Intelligence and up; the morning alerts work on every plan

Which shops and products it supports today

An honest list of what is ready and what is not open yet

Products supported

  • Mobile phone

    64 models · 172 specs

    Apple, Samsung, Xiaomi, OPPO, vivo

  • Tablet

    17 models · 108 specs

    Apple, Samsung

  • Notebook / MacBook

    32 models · 116 specs

    Apple, Lenovo, ASUS, Acer, HP, Dell, MSI

  • Computer

    6 models · 25 specs

    Apple

Brands 11 · Models 119 · Specs 421 (such as storage, RAM and chip)

Missing a model you sell? Request it from inside the app and the team reviews and adds it

Not supported yet: products outside these 4 categories, such as cameras or watches, and gold, silver and jewellery (in development)

Start today

Nothing to install, no IT team needed

  1. Sign up and set up your shop

    It takes a few minutes

  2. Move your stock over from Excel

    Columns are matched for you, duplicates are checked, and you can undo it within 30 days

  3. Invite your staff

    Give each person the access their job needs

No card needed · After 14 days you can stay on the free plan with all your data

Your store's data belongs to you

  • Each shop's data is separated in the database

    Other shops can't see your customers, purchase prices, profit or stock, and the database enforces this even if the app has a bug

  • Sensitive data is encrypted

    ID numbers, phone numbers, emails, addresses, IMEIs and serials are encrypted in the database; ID numbers, phones and IMEIs are masked on screen, and every reveal is logged

  • Two-factor sign-in

    Required for owners and admins, can be required for everyone, and leaked passwords are refused

  • Every action logged

    Who did what, and when. Voiding requires a reason, and transactions are never deleted.

  • Consent per purpose

    Customer consent is recorded separately for transactions, ID copies and marketing, with a history of every grant and withdrawal

  • Your data stays yours

    Owners can export all their data on every plan

Privacy policy Cookie policy

Clear pricing. Start free.

No setup fee, cancel anytime. Prices exclude VAT.

  • Pilot / Free

    Free

    No time limit

    • Users: 2 · Branch: 1
    • Purchases/sales: 60 transactions/month
    Start for free
  • Starter

    ฿590

    per month + VAT · 2 months free on yearly

    • Users: 3 · Branch: 1
    • Purchases/sales: 400 transactions/month
    Start 14-day free trial
  • Pro

    ฿1,290

    per month + VAT · 2 months free on yearly

    • Users: 8 · Branch: 1
    • Purchases/sales: Unlimited
    Start 14-day free trial
  • Intelligence

    Recommended

    ฿2,490

    per month + VAT · 2 months free on yearly

    • Users: 15 · Branch: 2
    • Purchases/sales: Unlimited
    Start 14-day free trial
  • Multi-Branch

    ฿3,990

    per month + VAT · 2 months free on yearly

    • Users: Unlimited · Branch: 10
    • Purchases/sales: Unlimited
    Start 14-day free trial

Compare all plans

Frequently asked questions

What is Resale Intelligence?

Resale Intelligence is software for shops that buy and sell used phones, tablets and computers. It shows the most you should pay, based on what your shop has actually sold, works out the true profit on every unit after repairs and fees, and warns you about slow stock before your cash gets stuck.

Read more: Features

Which shops is it for, and which products does it support?

It suits used phone and tablet shops, computer and laptop shops, dealers and multi-branch stores, and pawn shops that buy and sell goods. The catalog covers phones, tablets, laptops/MacBooks and desktop computers. The pawn module and gold shops are not available yet. The shared catalog currently lists 119 models and 421 specs from 11 brands.

Read more: Phone shop

How does it help me set a buy price?

It takes the median price your shop actually sold the same model and spec for, adjusts it for grade, battery, official or grey import and data age, then deducts repairs, fees, holding cost, a risk reserve and your minimum profit. The result is Safe Buy, shown with a confidence score and sample size. If data is thin, it says so. It supports your decision; it is not a price guarantee.

Read more: Methodology

Can a new shop with no sales history use the valuation?

Yes, but confidence starts low. The system only uses your own shop's data, so import past sales from Excel or record the listed prices you see. If there is still too little data, it shows no price and tells you the data is not enough yet.

Read more: Valuation

How does it stop me buying a duplicate or problem device?

Scan the IMEI with your phone camera: the system checks the number is valid and blocks a second intake of a device still in stock. The inspection checklist warns about an IMEI mismatch or an iCloud/Google account lock, and seller details are stored encrypted.

Read more: How to check a phone's IMEI before buying (checklist)

How is true profit different from sale price minus purchase price?

True profit deducts every cost of that device, including repairs, batteries, parts, shipping and card or platform fees. Each cost sits in a ledger that cannot be edited after the fact, and the system shows margin, ROI and profit per day for every device.

Read more: How to calculate true profit on used phones

Can we move our data over from Excel?

Yes. Import your existing stock, customer list and past sales from an Excel or CSV file yourself. The system matches the columns, checks for duplicates, shows a preview before you confirm, and lets you roll back the whole batch within 30 days.

Does it work on a phone? Do I need to install anything?

Nothing to install: it runs in the web browser on a phone, tablet or computer. Screens are designed for phones first, you can scan IMEIs with the camera, add it to your home screen as an app (PWA), and use it in Thai or English.

Is my shop's data safe? Can other shops see it?

No other shop can see your data. Each shop's data is separated at the database level, customers' personal data is encrypted, owners and admins must use two-factor authentication (2FA), and every important action is recorded in an audit log.

Read more: Security

How much does it cost? Is there a free plan?

Yes, there is a free plan you can keep using (users: 2, branches: 1, purchases or sales: 60 a month). Paid plans start at ฿590 a month excluding VAT, Safe Buy valuation starts on Starter, and new shops get every feature free for 14 days.

Read more: Pricing

Does the system guarantee we will not make a loss?

No system can guarantee that. The system helps estimate from real data and shows a price range, confidence and risk reasons, so your store can make better decisions.

Can I use the pawn module yet?

Not yet. The pawn module opens only after it passes legal review. Pawn shops can already use buying, selling, stock and true profit, and in the system a pawn is always a separate transaction type from a purchase.

Read more: Pawn shop

If we stop using it, can we take our data with us?

Yes. The store owner can export all store data as CSV files on every plan, even after the plan has expired.

Read more: Data policy

See true profit from the first unit you buy

Try every feature free for 14 days, no card needed. Move your stock over from Excel yourself.