Convert spare coins
into USD credits
Say goodbye to loose change at checkout.
Turn everyday spare change into real USD credits you can use.
Shop smarter. Save faster. Earn more in USD.
Recent Transactions
How it works
No coins. No friction. Just value.
At checkout
The shopper asks to “add USD credits” using their spare coins.
Instant transfer
The merchant enters the shopper’s mobile number, and USD credits are issued instantly — no app required.
Use anywhere
The shopper logs into the app and uses their USD credits with supported partners.
For Shoppers
Turn spare change into something you actually use.
- Accumulate USD credits automatically every time you shop.
- Use credits with participating partners in a few taps.
- Track your USD credit balance and history in the app.
For Merchants
Stop issuing coins. Reduce cash-drawer time and shrinkage. Boost customer satisfaction—while earning USD every time customers add credits.
- No more coin purchases, rolls, or storage — you do not issue coins
- Faster lines and cleaner cash reconciliation.
- Earn USD rewards on change transfers that add customer credits.
Security by design
Bank-grade encryption, scoped permissions, and event auditing. Built to integrate with modern POS systems and partners where credits can be used.
Ready to stop dealing with coins?
Join the waitlist
Frequently asked questions
What is Poly Coin, in one sentence?
Poly Coin lets shoppers turn spare change into redeemable USD credits.
How do shoppers earn USD from change?
At checkout, shoppers request to add USD credits to their Poly account, tied to their phone number.
Do I need the app to receive or use credits?
No app is required at checkout — just your phone number to add USD credits. However, the app makes it easiest to view and use your credits later.
When do USD credits appear in my balance?
Immediately after the cashier completes the transfer, your USD credits appear in your Poly account — you’ll see them in the app right away.
Are there limits or fees?
- Up to 5 USD credit additions per merchant per day
- Exchange rate fee may fluctuate based on USD availability
- No fees to use your credits
Where can I use the credits?
Major brands and general-purpose options are available. The catalog varies by region and grows over time—check the app for current options. View where you can use credits
Do USD credits expire?
USD credits remain valid for 5 years from the date of issuance. After this period, any unused balance will expire in line with issuer terms and conditions.
What happens if I return a purchase?
Returns follow the store’s policy. If the original sale is voided, any linked credit addition may also be reversed.
How do merchants get started?
Merchants only need an Android or iOS device to begin adding USD credits for customers.
How do merchants earn?
They collect USD rewards on change transfers that add customer credits, while cutting coin costs and speeding up checkout.
Is Poly Coin secure?
Yes—bank-grade encryption, scoped permissions, and event auditing are built in. Processing is handled by compliant partners.
Who do I contact for help?
Email support@poly-coin.com for shopper support, merchant onboarding, or integration details.
Contact support
Having trouble or need help with Poly Coin? Send us a message and we’ll get back to you.
Quick help
- Check the FAQ for common questions.
- Email us at support@poly-coin.com.