Question 1

Which Paytm integration should I use for a web app?

Accepted Answer

For web apps, use JS Checkout if you want a fast, hosted checkout UI with minimal code — it integrates in about an hour. If you need full UI control and want to build your own branded checkout, use Custom Checkout. Both support UPI, cards, netbanking, EMI, and subscriptions.

Question 2

Which Paytm integration should I use for a mobile app?

Accepted Answer

For Android and iOS apps, use the All-in-One SDK. It invokes the Paytm app for checkout if installed (App Invoke flow), falling back to a secure WebView. It supports Flutter, React Native, Ionic, Cordova, Xamarin, and Unity. If you need a fully native custom UI, use the Custom UI SDK instead.

Question 3

How do I accept payments without a website or app?

Accepted Answer

Use Paytm Payment Links — create a shareable payment URL from the dashboard with zero code, share it via WhatsApp or SMS, and customers can pay using UPI and cards. No website or app required.

Question 4

How do I add Paytm to Shopify, WooCommerce, or Magento?

Accepted Answer

Use Paytm's e-commerce plugins — Shopify, WooCommerce, Wix, and Magento are the most popular integrations. Install from your platform marketplace, configure your MID, and you're live in 15-30 minutes with no custom code. OpenCart, PrestaShop, Zoho and more are also supported.

Question 5

What is the difference between JS Checkout and Custom Checkout?

Accepted Answer

JS Checkout uses Paytm's hosted payment UI rendered as an iframe — you get a polished checkout in about an hour with minimal code. Custom Checkout lets you build your own payment UI using Paytm's APIs — you design every screen, which takes weeks but gives full branding control.

Question 6

What is the difference between All-in-One SDK and Custom UI SDK?

Accepted Answer

All-in-One SDK uses Paytm's payment UI via the Paytm app or a WebView — it integrates in 2-4 hours. Custom UI SDK lets you build your own native payment screens with full UI control, but requires significantly more development effort.

Question 7

Which Paytm integration supports subscriptions and recurring payments?

Accepted Answer

JS Checkout, Custom Checkout, and All-in-One SDK all support Paytm Subscriptions. Supports UPI Autopay, credit/debit cards, and eNACH. This is an enterprise feature — contact Paytm to enable it.

Question 8

Which Paytm integration is fastest to set up?

Accepted Answer

Payment Links require zero code and can be set up in minutes. E-commerce plugins take 15-30 minutes. JS Checkout takes about 1 hour. All-in-One SDK takes 2-4 hours for a mobile app.

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