Get Started in Minutes

Just fill in the short online registration form, download the free Flint app from the App Store or from Google Play and you’re ready to accept credit card payments from your phone! There’s no merchant account headaches or upfront costs, and no extra credit card reader hardware required.

Secure Scan, No Swipe

Simply position the card number in the scan area, then enter the card verification info to accept credit card payments in a snap. There’s no extra hardware to carry around and the card number is securely scanned through the Flint app. Keyed entry is also supported at the same rate as a scan.

With Flint, all data is fully protected according to industry PCI DSS standards and guidelines. All transactions are encrypted for safety, and no information or images is ever stored on your phone.

Invoicing Made Simple

Create and send custom invoices right from your phone or online Merchant Portal for free. Your customers will receive an emailed invoice containing the amount, your business information, and a link to easily pay online. Your customers can pay their bill from any smartphone or computer, without the hassle of registering a new account or remembering login information.

Payment overdue? Flint will send a friendly reminder email to your customer so you don’t have to. You can track, resend, and void all your invoices from the Flint app or online. Flint Invoicing is free, your only cost is our low transaction rate.

Accept Cash, Check, Debit & Credit Cards

With Flint, you can turn offline cash and check transactions into easy-to-reference digital records. Along with credit and debit card transaction data, digital receipts for cash and check transactions are automatically organized in your transaction history (and synced to QuickBooks Online if your account is linked).

Customize to Build Your Brand

Build your professional brand and become more memorable with every business communication you send. With Flint, you can customize invoices, receipts, and more with your logo, website, business information, and item descriptions.

Plus, create custom memos, establish suggested tip amounts, set up sales tax rates and fine tune card scanning settings, all from the app.

Efficient Team Management

Maximize the professional capabilities of your staff while minimizing hardware hassle and overhead for you. With Flint, you can give each of your employees the power to conduct secure transactions from their phone on your behalf. All payments collected are deposited into your secure bank account, which only you have access to.
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Sell Online Hassle Free & Secure

With just a few clicks, Flint's Sell Online will enable you to easily sell items online and receive secure payments from customers. After item, description and images are entered, Flint will generate a custom button or link that can be shared or embedded in your website. Your customers will be guided through the payment process on a mobile-optimized e-commerce page. Plus, you can easily track online orders from your merchant portal or through Flint's mobile app.
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Coupons with Passbook Integration

Easily create coupons from your phone or desktop, and reward your customers with savings to build loyalty. Discounts are automatically applied when coupons are scanned with the Flint app at the time of transaction. All Flint coupons can be integrated with Apple Passbook (increasing your company's visibility alongside major brands) or they can simply be scanned from an email.

Issued and redeemed coupons are easily tracked via the online Merchant Portal. If unused coupons are about to expire, Flint will send an automated reminder to your customers so they won't miss out on your savings opportunity.

QuickBooks Online Integration

In the two minutes it takes to link your QuickBooks Online and Flint accounts, you'll eliminate hours of manual data entry. That's because your Flint account will automatically sync full transaction data (detailed by line item) to QuickBooks every hour. To save you time, Flint will also map transactions to existing customers and create new customers in QuickBooks when needed.
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Get Paid Quickly

Deposits are automatically transferred to your bank account within 1-2 business days of the transaction once you enter your bank account details into your Flint profile. Deposits are sent directly to you from our merchant services partner, Fifth Third Bank. Transaction fees are automatically deducted from the deposits.

Flint supports U.S. based Visa, MasterCard, American Express, and Discover branded card transactions. Flint does not currently support deposits to pre-paid card accounts.

Online Merchant Portal

The Merchant Portal is your desktop headquarters for all things Flint. Log in anytime to access the details of your transaction history, view customer contact info, send invoices or coupons, and much more.

Through your Merchant Portal, you can easily search and filter your transaction history by line item to view data online, download into Excel or text formatted files, or automatically sync to your QuickBooks Online account.

Safe & Secure

Flint has integrated with industry leading financial services and infrastructure companies to provide a reliable, secure and scalable platform. Sensitive data is protected according to PCI DSS and other industry guidelines and all connections are encrypted for maximum security. The Flint app securely scans just the main card number. No card data or images are stored on the phone. Standard card verification info and a touch screen signature are required to complete transactions.


Flint is currently available in the U.S. for iPhone and Android users. Download the Flint app from the Apple App Store or Google Play. The app is compatible with iPhone 3GS, 4, 4S, 5, 5S and 5C with iOS 5.1 or higher. Supported Android devices must have Android 4.0 or higher. A few examples of the Android devices supported today are HTC One, Samsung Galaxy S4, Motorola Moto X, and LG Nexus 4.
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