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Over 10 years we helping companies reach their financial and branding goals. Onum is a values-driven SEO agency dedicated.

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Apps Development

We get results

We Build Custom Mobile & Web Apps for Your Business

With our custom app development services, you can turn your ideas into reality. From iOS, Android to cross-platform solutions, we build user-friendly, scalable, and high-performing apps tailored to your business goals.

OUR SERVICE

What We Offer

01
01
Full-Cycle App Development

From idea validation to final deployment, we handle every phase with precision.

02
02
Scalable & Secure Code

We build scalable applications using industry-standard frameworks with high-level security.

03
03
UI/UX Focused Design

Modern, intuitive, and conversion-driven app interfaces that users love.

04
04
Ongoing Maintenance & Support

Post-launch technical support, updates, and bug fixes to ensure your app keeps running smoothly.

What We Offer

Flexible Pricing Plans

We have experience building apps for startups to enterprise-level clients. Choose the right plan for your business

Basic
Basic

$ 299

One-Time Development

Platform (Android or iOS)
3 Screens UI Design
Firebase Backend Setup
Simple Functionality
App Store Publishing 7 Days Delivery
Choose Plane
Essential
Essential

$ 499

One-Time Development

Android + iOS
7–10 Screens
API Integration (3rd-party)
Custom UI/UX Design
Database Integration
14 Days Delivery
Choose Plane
Growth
Growth

$ 899

One-Time Development

Full Cross-Platform App
10+ Screens, Dashboard
Admin Panel (Web)
Advanced Features (e.g. payment, chat)
Scalable Backend (Node.js, Firebase, etc.)
30 Days Support
Choose Plane
real testimonials

What They
Say About Our
Company?

Taylor Green
Onum has increased our app engagement, downloads, and user retention. We've enjoyed working with them and consider them a reliable development partner.
Taylor Green
Client of Company
Emilia Clarke
"They built our custom e-commerce mobile app exactly the way we imagined. Smooth performance and elegant UI – highly recommended!"
Emilia Clarke
CEO
Maria Kloop
"From planning to final delivery, the team showed top-notch professionalism. Our education app has already crossed 50,000+ downloads!"
Maria Kloop
CEO