What Is Sonic?
Sonic is Nimbbl's hosted one-click checkout — the customer-facing payment experience that merchants embed or launch from their website or app. Instead of building payment UI from scratch, you integrate Sonic and rely on it to guide customers through identity verification, payment mode selection, method-specific flows, and outcome communication. It handles the full journey from customer identification through payment confirmation, providing a ready-to-use checkout that works across devices and payment modes.
Sonic works with the rest of the Nimbbl product suite behind the scenes: Orbit handles payment processing, Pulse optimizes routing, and Boostr powers personalization, offers, and affordability features.
You integrate Sonic through one of three paths: no-code tools like Payment Links and Payment Pages, low-code SDKs through Standard Checkout, or full API control through Custom Checkout. Regardless of the path, customers see the same optimized checkout experience.
Sonic is the primary integration point for merchants. All no-code, low-code, and full-API flows use Sonic checkout for the payment experience. Orbit, Pulse, and Boostr power processing, routing, and personalization behind the same checkout UI.
Key benefits:
- More completed payments — a checkout experience designed to reduce friction and cart abandonment across all supported payment modes
- Faster go-to-market — a pre-built checkout UI that handles payment mode selection, authentication flows, and outcome communication with minimal integration effort
- Compliance and security — built to work with secure server-side flows, compliant with RBI tokenization guidelines and PCI requirements without extra merchant effort
Capabilities
Customer Experience Capabilities
Sonic optimizes the checkout journey through intelligent authentication, hyper-personalization, and transparent outcome communication. Returning customers benefit from trusted-device detection and saved payment instruments, while new customers see a streamlined verification flow. When personalization is enabled through Boostr, the checkout surfaces only the payment options each customer can actually use — reducing failed attempts and time-to-pay. Sonic also communicates payment outcomes in plain language, explaining failures, guiding retries, and showing full pricing details including EMI breakdowns and currency conversion rates before the customer confirms.
Read more: Customer Experience
Integration Flexibility
Sonic supports three integration approaches to match different development timelines and customization needs:
- No-code — accept payments in minutes using Payment Links, Payment Pages, or eCommerce platform plugins. All no-code tools use Sonic checkout for the payment experience.
- Low-code — SDKs provide a lightweight client-side integration that launches Sonic checkout from your own website or app. See Standard Checkout.
- Full API — complete control over the payment UI and flow orchestration for teams that need maximum flexibility.
Read more: Integration Options
Customization Options
Sonic includes controls for visual branding (logo, display name, colors), behavioral settings (session timeout, popup versus redirect mode, payment attempt limits), and payment configuration (which payment modes are shown, how the fast payment tray behaves, and payment mode enforcement for targeted flows). These settings apply across all checkout sessions for your account.
Read more: Customization
How Sonic Works with Other Products
Sonic is the checkout and UI layer in the Nimbbl product suite. It relies on Orbit for payment processing infrastructure, Pulse for intelligent routing that optimizes success rates, and Boostr for personalization, incentivisation, and affordability features. You interact with Sonic as the checkout surface; the other products operate behind it and activate automatically when enabled for your account.