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MSG91

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What MSG91 is

MSG91 is a cloud communication platform offering APIs and tools for SMS, WhatsApp, RCS, email, voice and authentication. Its SMS service is presented for businesses and developers sending transactional messages such as order confirmations, appointment reminders and account notifications. The SMS API can retry a failed message over another telecom route, and MSG91 says its service reaches 210+ countries through local operators and rerouting. SMS tools include multilingual and personalised messaging, shortened links, scheduling, delivery tracking, analytics and reporting. For verification, developers can use APIs to send, resend and verify OTPs, or an OTP widget that calls those APIs automatically. MSG91 offers RESTful APIs and lists iOS and Android SDKs; Ruby, Python, PHP and Java are listed as SDK languages. Add-ons are available for WHMCS, Magento and WordPress, and email connections can use Gmail or Outlook. MSG91 is based in Indore, India. India-to-India SMS pricing is volume-based, with personalised pricing up to ₹0.13 per SMS; displayed rates may be subject to 18% GST where noted. The maker states that Walkover Web Solutions Pvt. Ltd. holds ISO/IEC 27001:2022 certification for its cloud communication platform and SaaS, valid until 14 July 2027 subject to surveillance audits.

Who it suits

MSG91 suits businesses and developers sending transactional notices or verification codes across communication channels. Its SMS tools and APIs include routing, delivery tracking and OTP operations.

What it does well

Offers APIs for SMS, WhatsApp, RCS, email, voice and authentication.
SMS retries can use another telecom route.
OTP APIs support send, resend and verify.
Lists iOS and Android SDKs and RESTful APIs.

What to know first

India-to-India SMS rates are volume-based.
Displayed rates may have 18% GST where noted.
Support hours vary by day.

Limits

India-to-India SMS plans are listed by message volume, and personalized pricing can go up to ₹0.13 per SMS. Displayed rates are subject to 18% GST where noted.

Plans

Plan	Billed and limits	Price
Free	0 INR / month · 5,000 emails · 50 email validations · DMARC compliance · Handle Bars	Free
Starter	2,000 INR / month · 1,00,000 emails · 500 email validations · 0.02 INR per extra email · 0.15 INR per extra validation	₹2,000 a month
Basic	4,600 INR / month · 2,50,000 emails · 5,000 email validations · 0.015 INR per extra email · 0.12 INR per extra validation	₹4,600 a month
Alpha	7,500 INR / month · 5,00,000 emails · 8,000 email validations · 0.01 INR per extra email · 0.10 INR per extra validation	₹7,500 a month
SMS — 16,500 India-to-India messages	16,500 SMS · India to India	On request
SMS — 5,000 India-to-India messages	5,000 SMS · India to India	On request
SMS — 4,50,000 India-to-India messages	4,50,000 SMS · India to India	On request
SMS — 60,000 India-to-India messages	60,000 SMS · India to India	On request

The first 8 of 11 plans, as msg91.com lists them, read 15 Oct 2026. The maker's own page has the final word. Every plan

Getting started

Visit the MSG91 SMS website.
Choose the communication channel and API tools you need.
Use the documented RESTful APIs or the iOS and Android SDKs.
For OTP verification, use the send, resend and verify APIs or the OTP widget.
Connect supported add-ons or Gmail or Outlook email connections if needed.

Verdict

MSG91 combines SMS delivery and OTP tools with APIs for several other communication channels. India-to-India SMS pricing depends on volume, and displayed rates may be subject to GST where noted.

Questions

What does MSG91 cost?

MSG91 uses a paid pricing model. India-to-India SMS rates are volume-based, and personalized pricing can go up to ₹0.13 per SMS; displayed rates may be subject to 18% GST where noted.

Which platforms does MSG91 support?

MSG91 lists Android, iOS, web and API platforms. It also lists iOS and Android SDKs.

Can MSG91 send and verify OTPs?

Yes. It documents APIs to send, resend and verify OTPs, plus a widget that calls those APIs automatically.

Which integrations does MSG91 offer?

MSG91 lists add-ons for WHMCS, Magento and WordPress. Its email connections can use Gmail or Outlook.

Where is MSG91 based?

MSG91 is headquartered in Indore, Madhya Pradesh, India.

Facts from MSG91's own pages

Account security: MSG91's privacy policy says sensitive information is encrypted using industry-standard protocols, transmitted via TLS/SSL, and accounts have two-factor authentication. · msg91.com, 4 Oct 2026
API security: An API-security option restricts requests to whitelisted IP addresses and rejects requests from other IPs with error 418. · msg91.com, 15 Oct 2026
Company legal name: Official registration documents identify the enterprise as Walkover Web Solutions Private Limited. · msg91.com, 15 Oct 2026
Company size: LinkedIn lists MSG91 as a privately held telecommunications company with 51–200 employees and headquarters in Indore, Madhya Pradesh. · linkedin.com, 15 Oct 2026
Developer documentation: The documentation provides API references with endpoints, parameters, authentication, request examples and responses, plus help-center and technical-support resources. · docs.msg91.com, 15 Oct 2026
Developer platforms: MSG91 lists iOS and Android SDKs and provides RESTful APIs for its communication channels. · docs.msg91.com, 4 Oct 2026
DLT requirement: For Indian domestic messaging, DLT platforms automatically append P, S, T or G suffixes to sender IDs according to template category. · msg91.com, 15 Oct 2026
Founded: The Udyam certificate records incorporation and business commencement on 18 June 2010. · msg91.com, 15 Oct 2026
Global reach: MSG91 says its SMS service reaches 210+ countries through localized telecom operators and real-time rerouting. · msg91.com, 4 Oct 2026
Google Sheets integration feedback: A Google Workspace Marketplace reviewer describes the Sheets integration as easy and reliable but complains that sender ID must be entered for every send. · workspace.google.com, 15 Oct 2026
Headquarters: The Udyam certificate lists the enterprise address in Indore, Madhya Pradesh, India, PIN 452011. · msg91.com, 15 Oct 2026
Historical outage: MSG91 reported major disruptions on 5 and 8 December 2018, including delayed or failed SMS during the second incident. · msg91.com, 15 Oct 2026
Hosting: The SOC 2 description says MSG91 production infrastructure is hosted on AWS regions in Singapore, India and Ireland inside a VPC with firewalls. · msg91.com, 15 Oct 2026
Integrations: MSG91 lists integrations or connectors including Shopify, Zoho CRM, CleverTap, Excel, Google Sheets, Auth0, Zapier, Pabbly Connect, viaSocket, Tally and Kylas. · msg91.com, 15 Oct 2026
Limit: credit dispute: A Trustpilot reviewer alleges promised recharge credits were not fully credited and that suspicious usage drained credits without adequate safeguards. · trustpilot.com, 15 Oct 2026
Limit: dashboard and imports: Software Advice reviewers report that the dashboard can sometimes fail to load JavaScript and that importing contacts is difficult. · softwareadvice.com, 15 Oct 2026
Limit: RCS reach: G2 reviewers cite limited RCS availability outside India, complex RCS setup and occasional reporting delays. · g2.com, 15 Oct 2026
Limit: staging environment: A G2 reviewer says MSG91 could not provide a staging environment for user-acceptance testing. · g2.com, 15 Oct 2026
Notable update: MSG91's July 13, 2026 update described campaign management, pausing campaigns, load balancing and processing up to five million SMS in one request. · msg91.com, 15 Oct 2026
OTP pricing: India-to-India OTP pricing shown ranges from ₹0.25 per OTP at 5,000 messages to ₹0.18 at 8,55,556 messages. · msg91.com, 15 Oct 2026
Praise: delivery and support: Independent reviewers repeatedly praise fast or reliable delivery, easy API integration, responsive support and startup-friendly pricing or credits. · softwareadvice.com, 15 Oct 2026
Praise: multi-channel platform: G2 reviewers praise combining SMS, WhatsApp, email and voice with reporting and logs in one platform. · g2.com, 15 Oct 2026
Pricing limits: The India-to-India SMS pricing page lists volume-based per-message rates and says personalized pricing can go up to ₹0.13 per SMS; its displayed rates are subject to 18% GST where noted. · msg91.com, 4 Oct 2026
Privacy processors: The privacy policy lists AWS, Google Cloud, Microsoft Azure, Meta, Jio Haptik, Stripe, PayPal, Razorpay, Cashfree, Freshworks and analytics providers as processors or infrastructure services. · msg91.com, 15 Oct 2026