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Messaging App Development

Build a Messaging App Like WhatsApp.

End-to-end encrypted messaging, voice and video calls, group chats, and business APIs — secure communication at scale.

Get a Free ProposalView Case Studies
$70K+
Starting Cost
3-9 Mo
Development
E2E
Encrypted
Core Features

Everything Your Messaging App Needs.

🔐

End-to-End Encryption

Signal Protocol implementation ensuring messages, calls, and media can only be read by sender and recipient. Zero-knowledge architecture.

👥

Group Chats

Group messaging for up to 1,024 members with admin controls, mention tagging, polls, pinned messages, and group-specific media galleries.

📞

Voice & Video Calls

Crystal-clear WebRTC-powered voice and video calling with group call support for up to 32 participants, noise cancellation, and screen sharing.

📸

Media & File Sharing

Share photos, videos, documents, contacts, and locations. Automatic media compression, gallery view, and cloud-backed storage.

🔄

Status & Stories

Ephemeral 24-hour status updates with text, photos, and videos. Privacy controls for who can view your updates.

💼

Business Accounts

Verified business profiles with catalog display, automated responses, quick replies, labels for customer management, and API access.

🌐

Web & Desktop Apps

Companion apps for web, Windows, and macOS that sync seamlessly with the mobile app via QR code pairing.

🤖

Chatbot & API Integration

Business API for chatbot integration, automated workflows, CRM connections, and programmatic message sending.

🔔

Smart Notifications

Customizable notification settings per chat, do-not-disturb scheduling, notification grouping, and priority contact alerts.

💾

Chat Backup & Restore

Encrypted cloud backups to Google Drive or iCloud with selective restore, chat export, and cross-device migration support.

Development Process

How We Build Your Messaging Platform.

01

Architecture & Security Design

3-4 weeks

Encryption protocol selection, system architecture, database schema design, and security threat modeling.

Encryption ProtocolSystem ArchitectureDatabase SchemaThreat Model
02

Core Messaging

10-14 weeks

One-on-one chat, group messaging, E2E encryption, media sharing, and real-time sync across devices.

1-on-1 ChatGroup MessagingE2E EncryptionMedia Sharing
03

Calls & Advanced Features

8-10 weeks

Voice/video calling, status updates, business accounts, web companion app, and chatbot APIs.

Voice/Video CallsStatus UpdatesBusiness AccountsWeb Companion
04

Security Audit & Launch

3-4 weeks

Independent security audit, penetration testing, performance optimization, and production deployment.

Security AuditPenetration TestingPerformance OptimizationProduction Deploy
Technology

The Stack Behind Your Platform.

Mobile
React NativeSwiftKotlinWebRTC
Backend
Erlang/ElixirNode.jsgRPCWebSocket
Database
ScyllaDBPostgreSQLRedisS3
Security
Signal ProtocolTLS 1.3AES-256HSM
Investment

Transparent Pricing. No Surprises.

MVP
$70,000 - $100,000

Core messaging, group chats, media sharing, and push notifications. Validate your messaging platform concept.

Text Messaging
Group Chats
Media Sharing
Push Notifications
iOS & Android
Full Platform
RECOMMENDED
$130,000 - $200,000

Complete messaging platform with E2E encryption, voice/video calls, business accounts, and web companion.

Everything in MVP
E2E Encryption
Voice & Video Calls
Status/Stories
Business Accounts
Web & Desktop Apps

Every project receives a detailed, fixed-price proposal after our free discovery call. No hidden fees, no scope creep.

FAQ

Questions
Answered.

Everything you need to know about building a WhatsApp-like messaging platform.

Ask Us Anything

A WhatsApp-like messaging app typically costs between $70,000 and $200,000. A basic MVP with text messaging, group chats, and media sharing starts around $70,000. A full-featured app with E2E encryption, voice/video calls, and status updates ranges from $130,000 to $200,000.

An MVP with core messaging features takes 3-4 months. A full-featured messaging platform with encryption, calls, and enterprise features takes 6-9 months.

We implement the Signal Protocol (Double Ratchet Algorithm) for E2E encryption, ensuring messages can only be read by sender and recipient. Keys are generated and stored on-device, never on servers.

Yes. We use Erlang/Elixir-based messaging infrastructure (similar to WhatsApp's own stack), WebSocket connections, and distributed systems architecture designed to handle millions of concurrent connections.

Absolutely. We can build enterprise messaging with features like admin controls, compliance archiving, API integrations, chatbots, and dedicated business accounts with verified badges.

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Ready to Build Your Messaging App?

From encrypted messages to crystal-clear calls — we build messaging platforms that billions trust.

Get Free Consultation
NDA on Day 1
Fixed-Price Guarantee
48hr Proposal
No Commitment
Selected Projects

Latest Work

📱 Mobile Apps🌐 Web Platforms🤖 AI Products💰 FinTech🏥 HealthTech🛒 E-Commerce📚 EdTech🚚 Logistics🏠 Real Estate🎮 Gaming
📱 Mobile Apps🌐 Web Platforms🤖 AI Products💰 FinTech🏥 HealthTech🛒 E-Commerce📚 EdTech🚚 Logistics🏠 Real Estate🎮 Gaming
Web Design3D Animation
01

Rapida

Delivery Service Platform

A high-performance delivery platform with real-time tracking and immersive 3D visualizations.

UI/UXSecurity
02

Fynsec

Cybersecurity Dashboard

Enterprise-grade security dashboard with real-time threat monitoring and analytics.

E-CommerceCreative
03

Pallet Ross

Art Marketplace

A curated marketplace connecting artists with collectors worldwide.

Mobile DevFlutter
04

Rapida Mobile

iOS/Android App

Cross-platform mobile experience with seamless delivery tracking and notifications.

APIMicroservices
05

Fynsec API

Backend Infrastructure

Scalable microservices architecture handling millions of security events daily.

Admin PanelAnalytics
06

Pallet Ross Admin

CMS Dashboard

Comprehensive content management system with advanced analytics and reporting.

01 / 06

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Our Work

Products That Users Actually Love.

200+ products shipped across fintech, healthcare, e-commerce, and SaaS — built to scale, designed to convert.

Mobile App

FinTech Trading Platform

FinTech Startup

Results
2.1B+ Transactions
50ms Latency
4.8★ Rating
Technology
React NativeNode.jsAWS
Healthcare App

Telehealth Solution

Healthcare Network

Results
120+ Clinics
500K Consultations
HIPAA Certified
Technology
SwiftKotlinGCP
Mobile Platform

E-Commerce Marketplace

E-Commerce Brand

Results
85K MAU
28% Conversion
$12M GMV
Technology
FlutterGoMongoDB
Why Choose Codazz

The Agency That
Actually Delivers.

Built for founders and product teams who need results — not promises.

✓500+ Apps Built•✓99% Client Retention•✓8-Week MVP•✓100+ Engineers•✓15+ Countries•✓Fixed Price, No Surprises•✓24/7 Support•✓NDA Day 1•✓500+ Apps Built•✓99% Client Retention•✓8-Week MVP•✓100+ Engineers•✓15+ Countries•✓Fixed Price, No Surprises•✓24/7 Support•✓NDA Day 1•

16+ Years Experience

From early-stage startups to Fortune 500s — we have seen every challenge and know how to navigate it.

100+ Engineers

Full-stack teams across mobile, web, AI, and cloud — ready to deploy on your timeline.

24 Countries Served

Global delivery with local understanding — we adapt to your market, culture, and timezone.

98% Client Retention

Clients stay because we deliver. Our track record speaks through repeat business and referrals.

SOC 2 Certified

Enterprise-grade security standards. Your data and IP are protected from day one.

8-Week MVP

From idea to live product in 8 weeks. Structured sprints, zero fluff, maximum momentum.

Start Your Project →
Security & Compliance

Enterprise-Grade Security
& Compliance Standards.

Every project meets the highest security and regulatory standards. Your data is protected at every layer.

🔒GDPR Compliant◆
🏥HIPAA Certified◆
✅SOC 2 Type II◆
💳PCI DSS Level 1◆
📋ISO 27001◆
🔐AES-256 Encryption◆
🕵️Penetration Tested◆
🏛️CCPA Compliant◆
🛡️Zero-Trust Architecture◆
🔑MFA Enforced◆
☁️AWS Security Hub◆
📡99.99% Uptime SLA◆
🔒GDPR Compliant◆
🏥HIPAA Certified◆
✅SOC 2 Type II◆
💳PCI DSS Level 1◆
📋ISO 27001◆
🔐AES-256 Encryption◆
🕵️Penetration Tested◆
🏛️CCPA Compliant◆
🛡️Zero-Trust Architecture◆
🔑MFA Enforced◆
☁️AWS Security Hub◆
📡99.99% Uptime SLA◆
GDPREU Data Protection Regulation

Full compliance with EU data protection laws. User consent management, data portability, and right-to-erasure built into every project.

CCPACalifornia Consumer Privacy Act

California privacy compliance with opt-out mechanisms, data disclosure workflows, and consumer rights management.

HIPAAHealthcare Data Compliance

End-to-end healthcare data protection. Encrypted PHI storage, audit trails, BAAs, and access controls for telehealth and EHR systems.

PCI DSSPayment Card Industry Standard

Level 1 PCI DSS compliance for payment processing. Tokenized card data, secure transmission, and quarterly vulnerability scans.

SOC 2Type II Security Certification

Independently audited security controls covering availability, processing integrity, confidentiality, and privacy.

ISO 27001Information Security Management

Certified information security management system covering risk assessment, incident response, and continuous improvement.

Client Testimonials

What Our Clients
Say About Us.

Hear directly from the founders and CTOs who've shipped with us.

4.9·500+ reviews on Clutch
⭐4.9 / 5 on Clutch◆
🏆Top Rated on GoodFirms◆
✅150+ Happy Clients◆
🌍15+ Countries Served◆
💬500+ Verified Reviews◆
🚀200+ Apps Shipped◆
🤝95% Client Retention◆
📱Trusted by Fortune 500◆
⭐4.9 / 5 on Clutch◆
🏆Top Rated on GoodFirms◆
✅150+ Happy Clients◆
🌍15+ Countries Served◆
💬500+ Verified Reviews◆
🚀200+ Apps Shipped◆
🤝95% Client Retention◆
📱Trusted by Fortune 500◆

“They transformed our legacy system into a high-performance cloud platform. Technical depth is unparalleled — shipped in 10 weeks, zero bugs in production.”

SJ
Sarah J.
CEO, Fintech Startup, San Francisco

“The level of detail in their product design phase saved us thousands in development costs. A truly strategic partner — they think like founders, not vendors.”

MD
Michael D.
Head of Product, Healthcare SaaS, Austin

“Scaling to 500K concurrent users was seamless with their architecture. Black Friday, not a single crash. I'm never going anywhere else.”

AR
Alex R.
Founder, E-Commerce Platform, New York

“We were struggling with a React Native app that kept crashing. The team rebuilt the entire architecture in 6 weeks — crash rate dropped to 0.01%. Absolute lifesaver.”

PK
Priya K.
CTO, EdTech Series A, Dubai

“Their team integrated real-time GPS tracking and route optimization into our fleet management system. Delivery times dropped 34% in the first month.”

DL
David L.
VP Engineering, Logistics Corp, Chicago

“From branding to a fully custom Shopify Plus build — they handled everything. Revenue tripled within 4 months of launch. The ROI speaks for itself.”

NW
Nina W.
Founder, D2C Brand, Los Angeles

“They transformed our legacy system into a high-performance cloud platform. Technical depth is unparalleled — shipped in 10 weeks, zero bugs in production.”

SJ
Sarah J.
CEO, Fintech Startup, San Francisco

Join 150+ companies who've shipped with Codazz

Start Your ProjectView Case Studies
Let's Build Together

Your Vision Is One
Conversation Away.

Tell us about your project and we'll scope it, plan it, and build it — on time, on budget, every time.

Email UsView Services

See our portfolio for real client results.

NDA Signed on Day 1
Fixed-Price Guarantee
8-Week MVP Programme
Recognition & Certifications

Trusted, Verified &
Globally Recognised.

c.
Clutch Top Generative AI
2026
c.
Top App Development
2024
Webby Honoree
Webby Honoree
2024
Flutter Service Award
Flutter Service Award
2024
AWS Advanced Tier
AWS Advanced Tier
2024
AWS Cloud Ops
AWS Cloud Ops
2024
SOC II Certified
SOC II Certified
2024
ISO Certified
ISO Certified
2023
Red Herring 100
Red Herring 100
2023
c.
Clutch Top Generative AI
2026
c.
Top App Development
2024
Webby Honoree
Webby Honoree
2024
Flutter Service Award
Flutter Service Award
2024
AWS Advanced Tier
AWS Advanced Tier
2024
AWS Cloud Ops
AWS Cloud Ops
2024
SOC II Certified
SOC II Certified
2024
ISO Certified
ISO Certified
2023
Red Herring 100
Red Herring 100
2023