When you’re choosing a messaging provider, price per message and how fast you can actually get started matter more than marketing claims. Here’s a direct, sourced comparison between SMSGatewayCenter and MSG91 across OTP, Voice, WhatsApp, and RCS.
OTP SMS Pricing
| Volume Tier | SMSGatewayCenter | MSG91 |
|---|---|---|
| ~5,000 | ₹0.17/SMS | ₹0.25/SMS |
| ~15,000–50,000 | ₹0.15/SMS | ₹0.20–0.22/SMS |
| ~1,00,000 | ₹0.14/SMS | ₹0.19/SMS |
| ~5,00,000+ | ₹0.13/SMS | ₹0.18–0.19/SMS |
Sources: SMSGatewayCenter OTP pricing, MSG91 OTP pricing. Both exclude GST, verified July 22, 2026.
SMSGatewayCenter’s per-message OTP rate is lower than MSG91’s at every volume tier checked.
Voice Call Pricing
| Provider | Rate |
|---|---|
| SMSGatewayCenter | ₹0.18/pulse (30 sec) at 10,000 units, down to ₹0.13/pulse at 10,00,000 units — billed only on answered calls |
| MSG91 | ₹0.50/minute for landline calls (their published rate card doesn’t show mobile/international rates in full) |
At SMSGatewayCenter’s lowest published tier, that’s roughly ₹0.36/minute, still below MSG91’s ₹0.50/minute landline rate, and it drops further at volume. Sources: SMSGatewayCenter voice pricing, MSG91 voice pricing, verified July 22, 2026.
WhatsApp Business API Pricing
The two platforms price WhatsApp differently, so here’s both structures side by side rather than forcing a single number:
| SMSGatewayCenter | MSG91 | |
|---|---|---|
| Platform fee | ₹999/month (Basic), ₹1999/month (Professional) | ₹500/month (Titan plan) |
| Setup cost | ₹0 | Not stated |
| Free trial | 15 days | Not stated |
| Bundled conversations | 1,000 free conversations/month included | None stated, billed per message |
| Per-message rate (India) | Included in bundle, then platform rate | ₹0.115 (utility/authentication), ₹0.8631 (marketing) |
Sources: SMSGatewayCenter WhatsApp pricing, MSG91 WhatsApp pricing, verified July 22, 2026, excludes GST.
MSG91’s base platform fee is lower, but SMSGatewayCenter bundles 1,000 free conversations and a 15-day trial into its plans, worth comparing against your own expected volume rather than base fee alone.
RCS Messaging Pricing
| SMSGatewayCenter | MSG91 | |
|---|---|---|
| Model | Pay-as-you-go, no mandatory monthly fee | Mandatory monthly subscription (Launch ₹2,000, Build ₹5,000, Grow ₹10,000) |
| Per-message rate (India) | ₹0.15 (10,000 units) → ₹0.12 (1,00,000 units) | ₹0.12 (single text) / ₹0.14 (rich media), on the ₹5,000/month Build plan |
| iPhone RCS delivery | Included | Included |
| API / dashboard access | Included | Included |
Sources: SMSGatewayCenter RCS pricing, MSG91 RCS pricing, verified July 22, 2026, excludes GST.
Worth being upfront here: MSG91’s per-message rate on their Build plan is comparable to, and for plain text, slightly below, SMSGatewayCenter’s rate at similar volume. The real difference is commitment structure. MSG91 requires an active monthly subscription (minimum ₹2,000/month) before you can send any RCS message at all, with wallet balance tied to that plan. SMSGatewayCenter’s RCS is pay-as-you-go with no mandatory monthly fee, you buy credits at the volume tier that fits and there’s no recurring charge if you don’t use it that month.
Missed Call OTP
SMSGatewayCenter offers missed call OTP, a free, zero-cost verification method. MSG91’s OTP page lists four delivery channels, SMS, WhatsApp, email, and voice, missed call OTP isn’t among them as of this writing.
Onboarding & Setup
SMSGatewayCenter’s onboarding is fully self-serve. New clients can sign up and get demo credits on their own, with no sales involvement required, and get instant access to sandbox templates and a test header to try the platform immediately, across SMS, WhatsApp, Voice, and RCS. WhatsApp plans also include a 15-day free trial with zero setup cost.
MSG91, by contrast, gates onboarding behind a sales call for its channels, you need to speak with their team before you can get started.
Custom Development on Request
Beyond the standard plans, SMSGatewayCenter’s team builds custom integrations and feature requests for clients directly, rather than requiring you to wait on a general product roadmap. If you need something specific, e.g. a custom webhook, a CRM integration, a non-standard delivery flow, talk to us and we’ll scope it.
Frequently Asked Questions
Is SMSGatewayCenter cheaper than MSG91? For OTP SMS and voice calls, SMSGatewayCenter’s published per-message rates are lower than MSG91’s at every volume tier we checked as of July 2026. WhatsApp and RCS pricing use different structures on each platform, so which is cheaper depends on your expected volume and whether you want a pay-as-you-go model or a subscription.
Does SMSGatewayCenter offer missed call OTP? Yes. SMSGatewayCenter offers missed call OTP as a free verification method. As of this writing, missed call OTP isn’t listed among MSG91’s OTP delivery channels (they list SMS, WhatsApp, email, and voice OTP).
Can I sign up for SMSGatewayCenter without talking to sales? Yes. Onboarding is fully self-serve, you can sign up, get demo credits, and access sandbox templates and a test header instantly with no sales involvement required. MSG91 requires a sales call before you can get started.
Does RCS messaging on SMSGatewayCenter require a monthly subscription? No. SMSGatewayCenter’s RCS pricing is pay-as-you-go with no mandatory monthly fee. MSG91’s RCS requires an active monthly plan, starting at ₹2,000/month, before you can send messages.
Does SMSGatewayCenter support custom development requests? Yes. SMSGatewayCenter’s team builds custom integrations and features for clients directly rather than requiring you to wait on a general roadmap. Contact us to scope your specific requirement.
How often is this comparison updated? This comparison was last verified on July 22, 2026. Pricing and features change over time; if you spot something outdated, email [email protected] and we’ll review it.
The Bottom Line
On the numbers we could verify, SMSGatewayCenter’s OTP and voice rates are lower than MSG91’s at comparable tiers, RCS and WhatsApp pricing use different structures worth comparing against your own volume, and missed call OTP is a delivery option MSG91 doesn’t list. SMSGatewayCenter is also fully self-serve, sign up, get demo credits, and start testing with sandbox templates instantly, with no sales call required.
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