Deliver SMS at
scale, reliably.
GroSMS is the enterprise-grade messaging platform for bulk SMS, transactional alerts, and OTP delivery — built for speed, deliverability, and global reach.
Messages today
1,284,920
Delivery rate
99.94%
Above industry average
Avg. latency
0.8s
Powering messaging for industry leaders
2B+
Messages sent monthly
99.94%
Average delivery rate
200+
Countries covered
10,000+
Businesses served
Features
Everything you need to send SMS with confidence
A complete messaging toolkit engineered for performance, reliability, and scale.
Lightning-fast delivery
Messages dispatched in under a second across our optimized global routing engine.
Enterprise-grade security
End-to-end encryption, TLS 1.3, and SOC 2 Type II compliance keep your data safe.
Plug-and-play API
REST, HTTP, and SMPP APIs with SDKs in 7 languages. Go live in under 10 minutes.
Smart routing & fallback
Automatic carrier failover and route optimization ensure maximum deliverability.
Global coverage
Direct operator connections in 200+ countries with local sender IDs.
Real-time analytics
Track delivery status, open rates, and campaign performance with live dashboards.
Solutions we provide
A messaging product for every use case
From bulk broadcasts to OTP delivery — everything you need to communicate at scale, in one platform.
OTP Service
We handle OTP sending and validation on our end — so you never have to build or maintain your own verification flow. Send and verify one-time passwords through a single API call, with automatic retries, expiry, and rate-limiting built in.
- Send & verify in one API
- Auto expiry & retries
- Built-in rate limiting
- No OTP infra to manage
POST /otp/send { "phone": "+91...", "channel": "sms" } 200 OK { "status": "sent" }
Bulk SMS Service
Broadcast thousands of messages in seconds with intelligent batching and carrier routing for maximum throughput.
- High-volume delivery
- Scheduled campaigns
- Sender ID support
SMS Alert Service
Real-time critical alerts that reach your users the moment it matters — server downtime, fraud, or threshold breaches.
- Sub-second dispatch
- Priority routing
- Escalation chains
Plug-and-Play API Gateways
REST, HTTP, and SMPP gateways with SDKs in 7 languages. Go from signup to first send in under 10 minutes.
- REST & SMPP
- 7-language SDKs
- Webhook callbacks
Promotional Campaigns
Compose, target, and launch marketing campaigns from a visual dashboard. Track opens, clicks, and conversions in real time.
- Audience segmentation
- A/B testing
- Live ROI dashboards
Who needs this
Built for every industry
Tailored messaging workflows that fit the way your business communicates.
E-commerce & Retail
Order confirmations, shipping alerts, and cart-recovery campaigns that convert.
- Abandoned cart SMS
- Order & delivery updates
- Flash sale broadcasts
FinTech & Banking
Secure OTPs, transaction alerts, and fraud notifications delivered instantly.
- 2FA / OTP delivery
- Transaction alerts
- Fraud warnings
Healthcare
Appointment reminders and patient follow-ups that reduce no-shows.
- Appointment reminders
- Patient follow-ups
- Prescription alerts
Enterprises & SaaS
Internal notifications, user verification, and system alerts at scale.
- User verification
- System alerts
- Staff notifications
How it works
Go live in four simple steps
From signup to your first send — the entire funnel takes less than 10 minutes.
Create your account
Sign up in seconds and grab your free trial credits — no credit card required.
Integrate in minutes
Drop in our REST API or use our dashboard to compose campaigns visually.
Send your messages
Launch bulk campaigns, OTPs, or transactional flows with one click.
Track & optimize
Monitor delivery, engagement, and ROI from your real-time analytics dashboard.
Pricing
Simple, transparent pricing
Pay only for what you send. No hidden fees, no setup costs. Cancel anytime.
Starter
For testing the waters and small volume needs.
1,000 SMS credits
Start free- All API access
- REST & HTTP APIs
- Delivery reports
- Email support
- 1 sender ID
Growth
For growing businesses sending regular campaigns.
25,000 SMS credits / mo
Start with Growth- Everything in Starter
- Smart routing & fallback
- Real-time analytics
- Priority support
- 5 sender IDs
- Scheduled campaigns
Enterprise
For high-volume senders with custom needs.
Unlimited volume
Contact sales- Everything in Growth
- Dedicated routes
- SMPP access
- 24/7 phone support
- Custom SLAs (99.99%)
- Dedicated account manager
All plans include unlimited contacts, campaign scheduling, and delivery reports.
Testimonials
Loved by teams worldwide
"We switched to GroSMS for our OTP delivery and saw deliverability jump from 91% to 99.6%. The impact on our login flow was immediate."
Priya Sharma
CTO, FinEdge
"The API was so clean our team integrated it in an afternoon. Cart-recovery SMS now drives 18% of our reclaimed revenue."
Marcus Lee
Head of Growth, ShopWave
"Sending 2 million appointment reminders a month used to be a headache. GroSMS made it boring — which is the highest compliment."
Dr. Amara Okafor
Operations Director, MediLink
FAQ
Frequently asked questions
You can create an account and send your first message in under 10 minutes. Sign up, grab your API key from the dashboard, and use our quickstart guide or visual campaign builder to launch.
We maintain a 99.94% average delivery rate across all routes and a 99.9% uptime SLA. Enterprise plans include a 99.99% uptime SLA with dedicated routes and custom agreements.
Yes. We have direct operator connections in 200+ countries with local sender ID support where available. Pricing varies by destination — check our coverage page for per-country rates.
We offer REST, HTTP, and SMPP APIs, plus official SDKs for Node.js, Python, PHP, Java, Ruby, Go, and .NET. Full documentation is available in our developer portal.
All traffic is encrypted with TLS 1.3. We are SOC 2 Type II compliant and GDPR ready. Your message content and contact lists are encrypted at rest and never shared with third parties.
Absolutely. You can schedule campaigns for any future time, set up recurring sends, and register custom alphanumeric sender IDs (subject to operator approval per country).
Ready to send your first message?
Get a personalized demo and free trial credits. Our team will help you pick the right plan and integrate in minutes.
- 1,000 free SMS credits on signup
- No credit card required
- Live onboarding with our team
- Cancel anytime