Offline checkout
Keep selling with local browser storage and recoverable backups when the connection drops.
Local-first point of sale
Run the store even when the internet is having a bad day.
TandemPOS keeps checkout, products, stock, staff time, payroll, and financial records close to the register. Manage your account, learn the system, or prepare a sample catalog in the public demo workspace.
- Free 7-day trial
- No card to try
- Windows & Android
- Your data stays local
The demo uses temporary catalog data only. Subscription status is checked online; customer register records stay on each register.
TODAY AT A GLANCE
$48,260
Sales recorded on this register
Try it right now
A working register, right in your browser.
No install, no sign-up — tap items to build a sale and watch the totals update live. This is the same checkout flow your cashiers will use every day.
Interactive preview · your taps stay in this browser tab and are never sent anywhere
Works fully offline
Data stays on your device
Receipt printing ready
Returns & exchanges
Live sales reports
One workspace
The daily tools for running a small store.
Designed for quick cashier flows, careful records, and owners who need clear reports from each independent device.
Explore all featuresStock and returns
Receive stock, track locations, process returns, and keep transaction history searchable by date.
People and payroll
Manage staff access, shifts, hours, payroll adjustments, and review.
Owner reporting
Review sales trends, payment methods, financial statements, receivables, payables, and account logs.
See the workflow
Show visitors the register before they commit.
These previews use the same labels and flows as TandemPOS so a new owner can understand the day-to-day experience in seconds.
See all screensCASHIER MODE
A calmer counter for every shift.
Owners can lock a device with a PIN so cashiers see checkout, products, history, returns, drawer, receivables, hardware, and backup tools while owner pages stay out of the way.
Try the cashier sample
OWNER OVERVIEW
Turn daily sales into a useful view.
Bar charts, payment methods, staff sales, and custom date ranges help owners act quickly.
RECORDS & PAYROLL
Keep the numbers connected.
Financial statements, receivables, payables, account logs, and payroll review live in their own clear pages.
Downloads
Choose the register that fits your store.
Android and Windows installers, fingerprint-checked before saving. Your records stay on the device — TandemPOS never keeps a cloud copy of your transactions.
All downloads & hardwareTandemPOS for Android
The production-signed installer for Android tablets and phones.
Get the Android appFile fingerprint checked · keep a backup before updatingTandemPOS for Windows
The Windows installer for a full counter PC or tablet.
Get the Windows appReview build · clearly labelled · signed release pendingPrepare your menu first
Build an item catalog in the browser and download an encrypted restore point for the installed app.
Open menu builderNo transactions and no business data uploadKeep exploring
Every corner of TandemPOS.
Simple pricing
One store, up to six registered devices.
Start with a free seven-day trial — no card needed. Paid plans bill monthly in US dollars through PayPal, and every device keeps its own sales, stock, staff, payroll, reports, and backups.
Plan details & questions$5USD / month
One register for a single Windows PC or Android tablet.
- Full offline checkout
- Stock, staff & reports
- Encrypted local backups
- Three-day renewal grace
$10USD / month
Up to three independent registers, each with its own records.
- Everything in 1 device
- QR device approval
- Shared renewal date
- Owner overview & payroll
$15USD / month
Up to six authorized Windows PCs or Android tablets.
- Everything in 3 devices
- Up to six registers
- Ready for multi-store growth
- Same renewal date everywhere
Prices in USD, billed monthly through PayPal · Try the demo workspace · Manage your subscription
Learn with TandemPOS
Watch short walkthroughs of the register.
These narrated slideshow tutorials use real TandemPOS screens to guide you through common store tasks.
View all 12 tutorials & manualsGETTING STARTED
Set up your first register
Follow the product catalog, stock receiving, checkout, staff, hardware, and backup setup.
CHECKOUT
Complete a sale at checkout
Search or scan items, review totals, record payment, and check Sales history.
DAILY ROUTINE
End-of-day register routine
Reconcile payments, review the day, and create a fresh backup.
Loved by store owners
What merchants say about TandemPOS.
★★★★★
"Our internet goes down almost every afternoon. Before TandemPOS we had to shut the register — now we just keep selling and it syncs nothing we don't want it to."
★★★★★
"I was worried tablets would merge all their sales into one mess. They don't. Each tablet backs up its own data — exactly what I needed for three separate counters."
★★★★★
"Setup took ten minutes. The free trial meant I could test everything before paying — and $5 a month for one register is less than a cup of coffee here."
Ready when you are
Give your team a calmer register.
Start the free seven-day trial — no card needed — or check your subscription from your account page.