Engage every customer,on every platform
Fast. Scalable. Reliable. Connect with customers across 50+ networks in Africa with a single API integration.
Any channel. Anywhere.
Connect with your customers on their preferred channels with our unified messaging platform
Bulk SMS
Send high-volume SMS campaigns with instant delivery across Africa
- Global SMS delivery
- Sender ID customization
- Unicode support
- Delivery reports
WhatsApp Business
Rich messaging with templates, buttons, and interactive media
- WhatsApp Business API
- Rich media support
- Template messages
- Two-way conversations
Email Campaigns
Professional email marketing with advanced analytics and automation
- WYSIWYG editor
- A/B testing
- Automation workflows
- Analytics dashboard
Trusted by Industry Leaders
Partnering with innovative companies to drive digital transformation and business growth.
From signup to sending your first message
Our streamlined process gets you up and running faster than any other platform.
Sign Up & Get API Keys
Create your account and receive instant access to your API credentials. No waiting, no approval process.
Configure Your Channels
Set up SMS, WhatsApp, and Email channels with our intuitive dashboard. Customize settings in minutes.
Send Your First Message
Use our APIs or dashboard to send your first message. Watch real-time delivery confirmations roll in.
Scale & Monitor
Leverage our analytics dashboard to optimize campaigns and scale to millions of messages seamlessly.
Ready to get started?
Join thousands of businesses that trust GreySilicon for their communication needs.
Powering Africa's Digital Future
No credit card required • Cancel anytime • 30-day free trial
We're not just a messaging platform - we're your strategic partner in connecting with Africa.
Lightning Fast
Blazing fast message delivery with 99.99% uptime
Enterprise Security
End-to-end encryption and compliance with global standards
Real-time Analytics
Powerful insights to optimize your messaging strategy
Easy Integration
Simple API and comprehensive documentation
Pan-African Reach
Direct connections to all major African networks
24/7 Support
Dedicated support team always ready to help
Pricing that scales with your business
Start for free, upgrade as you grow. No hidden fees, cancel anytime.
Developer
What's included:
Perfect for testing and small projects
- 10,000 SMS messages
- 1,000 WhatsApp messages
- 5,000 Emails
- Basic API access
- Community support
- Standard documentation
- Rate limited to 10 msgs/sec
Startup
What's included:
For growing businesses and apps
- Unlimited messages
- All channel APIs
- Advanced analytics
- Priority support
- Custom sender IDs
- Webhook support
- SDKs & libraries
- Up to 100 msgs/sec
Business
What's included:
For established companies at scale
- Everything in Startup
- Dedicated support
- Custom integrations
- Advanced routing
- Failover & redundancy
- SLA guarantees
- Bulk operations
- Up to 1,000 msgs/sec
Enterprise
What's included:
Custom solutions for large organizations
- Everything in Business
- Dedicated infrastructure
- Custom SLAs
- 24/7 phone support
- Account manager
- Custom contracts
- On-premise options
- Unlimited throughput
Frequently asked questions
Everything you need to know about our pricing and plans. Can't find the answer you're looking for?
Is there a free trial available?
All plans come with a 14-day free trial. No credit card required.
Can I change plans later?
Absolutely! You can upgrade or downgrade your plan at any time.
What payment methods do you accept?
We accept all major credit cards, PayPal, and bank transfers.
Do you offer discounts for non-profits?
Yes, we offer special pricing for non-profit organizations. Please contact our sales team.
How does the free plan work?
The Developer plan includes $10 free credits to test our platform with no time limit.
What support options are available?
We offer email support for all plans, with priority support available on higher tiers.
Can I cancel anytime?
Yes, you can cancel your subscription at any time with no hidden fees.
Is my data secure?
We use enterprise-grade security and encryption to protect all your data.
Still have questions? Our team is here to help you 24/7.
Contact SupportLoved by developers and trusted by enterprises
Join thousands of companies across Africa who rely on our platform for their critical communications.
The API integration was seamless. We were up and running in less than 30 minutes. The documentation is excellent and the support team is incredibly responsive.
Sarah Chen
CTO at TechFlow Africa
Since switching to Grey Silicon, our SMS costs dropped by 40% while delivery rates improved. The dashboard analytics help us optimize our campaigns.
Michael Oduya
Product Manager at FinanceApp Kenya
The WhatsApp Business API integration allowed us to create rich, interactive conversations with our students. Game-changer for student engagement.
Amina Hassan
Lead Developer at EduTech Solutions
Multi-channel campaigns are now effortless. We can coordinate SMS, WhatsApp, and Email from one platform. Our conversion rates have never been higher.
David Mbeki
Marketing Director at RetailCorp SA
Everything you need to scale your messaging
Powerful features designed to help you build and scale your messaging infrastructure.
Pan-African Reach
Connect with customers across 50+ networks in Africa with a single API integration. We handle the complexity of local regulations and carrier relationships.
Enterprise-Grade Reliability
99.9% uptime with built-in failover and intelligent routing. Your messages are delivered when they matter most.
Lightning Fast
Low-latency message delivery optimized for African networks. Get messages delivered in milliseconds, not seconds.
Secure & Compliant
End-to-end encryption and GDPR compliance. Your data is protected with enterprise-grade security measures.
Need something more? Our platform is fully customizable to fit your exact requirements.
Connect with your favorite tools
Seamlessly integrate GreySilicon with your existing workflow and boost productivity.
CRM
Manage relationships with customers, clients, patients, or students. Used by businesses, hospitals, and schools.
Examples: Salesforce, HubSpot, Zoho CRM, Bitrix24
ERP
Integrates key operations — finance, HR, inventory, procurement, and more. Used by businesses, hospitals, and government.
Examples: SAP, Oracle ERP, Odoo, Microsoft Dynamics 365
POS
Handle sales transactions, payments, and inventory updates. Perfect for retail, hospital pharmacies, and school canteens.
Examples: Square POS, Lightspeed, Toast, Vend
HMS
Comprehensive hospital management for patients, staff, appointments, billing, and pharmacy operations.
Examples: MediTech, OpenMRS, eHospital, CareCloud
LMS
Deliver, track, and manage educational content and student performance. Ideal for schools and training centers.
Examples: Moodle, Google Classroom, Canvas, Blackboard
HRMS
Manage employee data, payroll, recruitment, performance, and leave for businesses and organizations.
Examples: BambooHR, Workday, Zoho People, OrangeHRM
Don't see your platform? Our API is designed to work with any system.
Supercharge Your Digital Communication
Our Services:
Benefits:
- Save Time with Automated Messaging
- Engage Customers Instantly
- Integrate Seamlessly with Your Tools
Grey Silicon App Dashboard Tour
Take a quick tour of our intuitive dashboard and discover how Grey Silicon can streamline your workflow and boost productivity.