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Updated 4 October 2026

MSG91 vs Fast2SMS vs SMSGatewayHub (2026)

Three popular bulk SMS providers in India compared on price per SMS, OTP delivery, DLT help, WhatsApp, RCS, API options, certifications and support, so you can pick the right one for your use case.

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Side-by-side comparison

Competitor details come from their public websites and pricing pages as checked on 4 October 2026. Prices change often and usually exclude 18% GST, so confirm current rates on each provider's site before you buy.

FeatureSMSGatewayHubMSG91Fast2SMS
PositioningEnterprise messaging platform for India: SMS, OTP, WhatsApp, RCS, voice, IVR, emailCloud communication platform (CPaaS) with country-specific productsSimple, low-cost bulk SMS with prepaid recharges
Founded / HQ2009, Indore (Madhya Pradesh)See msg91.com2011 (as stated on fast2sms.com)
Published SMS pricePromotional from ₹0.12/SMS; transactional & OTP from ₹0.18/SMSSlabs from ₹0.25/SMS (5,000 SMS) down to ₹0.16/SMS (9,62,500 SMS)Recharge slabs from ₹0.25/SMS down to ₹0.11/SMS for the largest recharges
Billing modelPay only for delivered SMSSlab-based creditsRecharge slabs with validity per slab
Free trialFree test credits on sign-upTrial credits on sign-up₹50 free SMS on sign-up
OTPDedicated -T OTP routes, voice OTP, SMPP & HTTP APIOTP API and OTP widgetOTP via API
DLT registration helpFree, assisted entity, header and template registrationGuides and supportGuides; also markets a "Quick SMS" route
WhatsApp Business APIYes (official API, chatbots, team inbox)YesYes
RCS messagingYes, with SMS fallbackYes (separate RCS pricing page)See fast2sms.com
SMPPSMPP v3.4 for resellers and enterprisesCheck with providerCheck with provider
Voice, IVR, missed callVoice SMS, voice OTP, cloud IVR, missed call numbersVoice products availableVoice products available
CertificationsISO 27001, ISO 9001:2015, SOC 2 Type IISee msg91.comDisplays ISO, SOC and VAPT badges
IntegrationsHTTP/HTTPS API, SMPP, Excel plugin, WooCommerce pluginAPIs and SDKs, docs in main navigationWordPress, WooCommerce, Shopify and Tally plugins

Sources (checked 4 Oct 2026): MSG91 SMS pricing, Fast2SMS pricing, fast2sms.com, SMSGatewayHub pricing, SMSGatewayHub company details.

Which provider should you choose?

Choose SMSGatewayHub if…

  • You are a bank, NBFC, hospital, e-commerce or SaaS business that needs certified security (ISO 27001, SOC 2 Type II).
  • You want SMPP v3.4 as well as HTTP APIs, or you resell SMS.
  • You want someone to handle DLT entity, header and template registration with you.
  • You prefer paying only for delivered SMS.

Choose MSG91 if…

  • You want one CPaaS vendor for SMS, email, WhatsApp, RCS and OTP widgets across several countries.
  • Your volumes fit its published slab pricing.

Choose Fast2SMS if…

  • You send small volumes and want the lowest headline price with simple prepaid recharges.
  • You mainly need plugins for WordPress, Shopify or Tally.

How to compare the real cost per SMS

Headline rates rarely match what you actually pay. Before choosing, check these five things for each provider:

  1. Delivered vs submitted: are you charged for every SMS sent, or only for SMS that reach the handset?
  2. GST: most Indian SMS prices exclude 18% GST.
  3. Validity: do credits expire with the recharge slab, or are they lifetime?
  4. Message length: long or Unicode (Hindi, regional language) messages use more than one credit.
  5. DLT scrubbing charges: operators add DLT scrubbing fees; check whether they are included.

Use our SMS cost calculator to work out your monthly bill, and see how pay-for-delivered billing works.

Switching providers in 4 steps

  1. Register a free SMSGatewayHub account and get test credits.
  2. Share your DLT details: Entity ID, headers (sender IDs) and approved templates. Your DLT registration stays yours, so nothing has to be registered again.
  3. Change your API endpoint to our HTTP/HTTPS API or bind over SMPP.
  4. Test, then go live while watching real-time delivery reports.
MSG91 alternative Fast2SMS alternative All comparisons DLT registration guide OTP SMS service Transactional SMS pricing

Frequently asked questions

Which is cheapest: MSG91, Fast2SMS or SMSGatewayHub?

On published list prices checked on 4 October 2026, Fast2SMS shows the lowest headline rate (₹0.11 per SMS at its largest recharge slab), MSG91's SMS slabs run from ₹0.25 down to ₹0.16, and SMSGatewayHub promotional SMS starts from ₹0.12. SMSGatewayHub bills only for delivered SMS, so the effective cost per delivered message can be lower than the headline rate suggests.

Which is best for OTP SMS?

All three offer OTP on transactional (-T) routes. Choose on delivery reporting, fallback options and support: SMSGatewayHub offers dedicated OTP routes, SMPP v3.4 and HTTP APIs, voice OTP and pay-for-delivered billing; MSG91 offers an OTP widget inside a wider CPaaS suite; Fast2SMS offers simple API access for low volumes.

Do all three need DLT registration?

Yes. TRAI rules require every business sending A2P SMS in India to register its entity, sender IDs (headers) and templates on a DLT platform, whichever provider it uses. SMSGatewayHub helps customers with DLT registration free of charge.

Can I keep my sender ID and templates when switching?

Yes. DLT registrations belong to your business, not to the SMS provider. You share your DLT Entity ID, headers and approved templates with the new provider and map them to its account; there is no need to register again.

Is there a free trial?

Fast2SMS advertises ₹50 of free SMS on sign-up. SMSGatewayHub gives free test credits on registration so you can check delivery before buying. MSG91 offers trial credits through its sign-up flow.

Test SMSGatewayHub before you decide

Register free, send test messages on our OTP and transactional routes, and compare delivery reports with your current provider.

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