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OIESU®

OIESU is a marketing and software development company founded in 2021, backed by delivery experience dating back to 2012. Across founder, team, freelancer, partner, and white-label work, our combined history spans 500+ businesses and $1B+ in ad spend.

💬 +91 9874625135✉️ [email protected]

OIESU (OPC) Private Limited
Nababpally, Kolkata – 743127
West Bengal, India

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Home›Services›App Development Management
App Development specialists · 3,600+ campaigns managed

Transform Your Mobile Presence with data-driven apps.

Boost your business with our expert app development services. We design, develop, and optimise mobile apps that drive real results. Our team of specialists has a proven track record of delivering high-performing apps that meet your business objectives.

Google Partner Agency🇮🇳 Proudly Indian · AI-first · Global delivery Performance marketing since 2012 3,600+ Campaigns Managed Full-funnel tracking Free Campaign Audit
2012
experience since
3,600+
campaigns managed
$1B+
ad spend managed
10 days
to first results

Ready to grow? Let's talk.

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YOU
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DETAILS
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INDUSTRY
4
SERVICES
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BUDGET
5 steps away from growing your business — start with your contact details.
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Our process

Our App Development Process delivering results in 10 days.

Our streamlined process ensures rapid deployment and continuous optimisation.

01
Day 0

Discovery

We work with you to understand your business goals, target audience, and app requirements. Our team conducts a thorough analysis to identify key opportunities and challenges.

02
Days 1–3

Design

Our designers create wireframes, prototypes, and high-fidelity designs that meet your brand guidelines and user experience expectations. We iterate and refine the design based on your feedback.

03
Days 4–10

Development

Our development team brings the design to life, building a robust, scalable, and secure app that meets your requirements. We conduct rigorous testing to ensure a smooth user experience.

04
Ongoing

Optimisation

We continuously monitor app performance, gathering insights and making data-driven decisions to optimise user engagement, retention, and conversion. Our automated follow-up system ensures timely and relevant interactions with your users.

Get Your Free StrategyWhatsApp UsBook a Meeting

Free · No commitment · Reply within 24 hours

No-Obligation Offer

Free App Development Account Audit

Get a comprehensive review of your current app development strategy and identify opportunities for improvement with our free audit. Our experts will provide actionable recommendations to enhance your app's performance and drive business growth.

Claim Free Audit
What we manage

App Development Services We Offer tailored to your business needs.

From concept to launch and beyond, we manage every aspect of your app development project.

Native App Development

We build high-performance native apps for iOS and Android, leveraging the latest technologies and best practices to deliver seamless user experiences.

Cross-Platform Development

Our team develops cross-platform apps that run smoothly on multiple platforms, reducing development time and costs while maintaining high quality.

App Store Optimisation

We optimise your app's visibility and discoverability on the app stores, improving your ranking and driving more downloads.

App Maintenance and Support

Our ongoing maintenance and support services ensure your app remains stable, secure, and up-to-date, with timely bug fixes and feature enhancements.

App Analytics and Insights

We provide actionable insights into your app's performance, user behaviour, and market trends, helping you make informed decisions to drive growth.

Radius Targeting

Our app development services include radius targeting, allowing you to reach users within a specific geographic area, typically 15–20+ miles around your business location.

Get Your Free StrategyWhatsApp UsBook a Meeting

Free · No commitment · Reply within 24 hours

Who this is for

Industries We Serve with App Development 50+ campaigns managed across sectors.

Our app development expertise spans multiple industries, including healthcare, local services, real estate, and law.

Healthcare Providers

We develop apps that streamline patient engagement, appointment scheduling, and telemedicine services for healthcare providers, improving patient outcomes and operational efficiency.

Local Service Providers

Our apps help local service providers, such as plumbers and HVAC technicians, manage customer interactions, schedule appointments, and optimise their service delivery.

Real Estate Agents

We create apps that enable real estate agents to showcase properties, manage leads, and provide a seamless customer experience, driving sales and growth.

Law Firms

Our apps support law firms in managing client relationships, document sharing, and case management, enhancing collaboration and productivity.

Healthcare Technology

We develop apps that integrate with healthcare technology platforms, enabling innovative solutions for patient care and medical research.

Service-Based Businesses

Our apps cater to various service-based businesses, providing customised solutions to meet their unique needs and improve customer engagement.

View all industries we serve →
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Free · No commitment · Reply within 24 hours

What's included

Every App Development engagement includes.

No hidden extras, no bolt-on fees. Everything below is included in your monthly management — from strategy to reporting to weekly optimisation.

Custom app design and development
Native and cross-platform app development
App store optimisation and marketing
Ongoing app maintenance and support
App analytics and performance insights
Radius targeting and geo-fencing
Automated follow-up system integration
User experience (UX) and user interface (UI) design
App security and stability testing
Get Your Free StrategyWhatsApp UsBook a Meeting

Free · No commitment · Reply within 24 hours

Case studies

Real results. Real clients.

Numbers from actual engagements — not projections. Client details are NDA-protected. Industry and country disclosed.

Dental Clinic · Sydney, Australia

Boosted patient bookings by 35% with intuitive mobile app

A busy dental clinic in Sydney needed a mobile app to streamline patient bookings and reduce no-shows. Their existing online booking system was clunky and often resulted in frustrated patients.

OIESU developed a user-friendly mobile app that integrated with their existing booking system. The app allowed patients to easily book, reschedule, or cancel appointments. First results were seen in 10 days.

Read full case study →
Patient Bookings200270
No-Show Rate15%8%
Patient Satisfaction80%92%
35% more bookings · 47% fewer no-shows
View all industries we serve →View all case studies →
Client testimonials

What our clients actually say.

All testimonials are from real clients. Names and companies are NDA-protected per our standard agreement. Industry and country are disclosed.

★★★★★

“OIESU's app development services helped us increase patient bookings by 35%. Their team was professional and delivered the project on time.”

Rahul G., Operations Manager
Healthcare · India · NDA Protected
★★★★★

“The mobile app developed by OIESU has been a game-changer for our HVAC business. We've seen a 25% increase in service calls within the first month.”

Emily W., Marketing Manager
Local Services · Canada · NDA Protected
★★★★★

“OIESU's custom mobile app has improved client engagement by 40%. We're thrilled with the results and would highly recommend their services.”

Samantha T., Partner
Law · Australia · NDA Protected
★★★★★

“The automated follow-up system integrated into our mobile app has reduced no-shows by 47%. OIESU's team was easy to work with and delivered a top-notch solution.”

David L., Practice Manager
Healthcare · UK · NDA Protected
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Why OIESU

Why Choose OIESU for App Development expertise that drives real results.

Our team of specialists has a proven track record of delivering high-quality apps that meet business objectives.

Proven Track Record

With 3,600+ campaigns managed and $1B+ ad spend, we have the expertise and experience to deliver successful app development projects that drive real results for your business.

Data-Driven Approach

Our data-driven approach ensures that every app development decision is informed by actionable insights, driving continuous optimisation and improvement.

Collaborative Partnership

We work closely with you throughout the app development process, ensuring that our solutions meet your business needs and goals.

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Custom pricing

Every engagement is priced to your goals.

We don't publish one-size-fits-all rates because no two ad accounts are the same. Pricing depends on your ad spend, number of campaigns, locations, and conversion complexity.

View pricing plans →Get a custom quote
No long-term contractsNo hidden setup feesCancel any time
Agentic AI workforce

15+ AI models. One integrated performance engine.

OIESU builds with advanced AI running 24/7 — not just one model, but a coordinated network of 15 specialist models working across strategy, copy, bidding, and analysis. Human-led, AI-powered, always on.

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15+ AI models
integrated AI stack
100×
faster than manual
24/7
always monitoring
90%+
automation rate

AI-Generated, Human-Refined

AI creates the first draft; senior strategists add the judgment, nuance, and competitive insight only humans can deliver. Speed of machines, quality of experts.

Always-On Optimisation

24/7 monitoring and bid adjustments while you sleep. Our AI stack never stops watching your campaigns — flagging issues and capturing opportunities around the clock.

Predictive Audience Targeting

AI models map buyer behaviour patterns to target the right person at the right moment — before your competitors even know they're in market.

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Free · Instant · No sign-up

Get your AI-generated, human-refined marketing strategy — free.

Our senior strategists use 15+ AI models to build your personalised 90-day marketing plan in under 60 seconds — then review and refine it with expert eyes. No generic advice. No commitment.

Get My AI Strategy Now →Book a call with our senior strategist
What you'll receive
Recommended App Development campaign structure for your funnel
90-day campaign roadmap with key milestones and deliverables
Estimated lead volume and CPL benchmarks for your industry
Budget allocation recommendations by channel and funnel stage
Our other services

App Development is one channel. We cover them all.

Most businesses need more than one channel to scale. Our team manages every major paid and organic channel under one roof — so your strategy is coordinated, not fragmented.

Google Ads

Search, Display, YouTube, Performance Max — certified specialists reduce cost-per-lead while scaling real enquiries.

Know more →

Meta Ads

Facebook and Instagram — prospecting, retargeting, and lead generation for B2C and B2B at every funnel stage.

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Microsoft Ads

Bing Search and LinkedIn Audience — often 20–40% lower CPL than Google for B2B and professional services.

Know more →

LinkedIn Ads

Sponsored content, Message Ads, and Lead Gen Forms targeting by job title, seniority, and company size.

Know more →

YouTube Ads

In-stream and discovery ads for brand building and mid-funnel nurturing — custom intent audiences.

Know more →

Landing Pages

Conversion-optimised landing pages to pair with your ad campaigns — clicks into enquiries, not just visits.

Know more →
View all services →
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Industry insight

Expert App Development Requires Specialised Marketing Know-How Boost ROI Now.

Developing a high-performing app is just the first step; what matters most is how effectively you market it to your target audience. Without specialist knowledge, even the most innovative apps can struggle to gain traction. OIESU's expertise in App Development marketing helps businesses like yours overcome this hurdle.

The difference between high and low-performing App Development marketing lies in the ability to target the right audience, optimise for conversions, and continually refine the marketing strategy. High-performing campaigns are data-driven, leveraging insights to inform every decision, whereas low-performing ones often rely on guesswork.

At OIESU, we differentiate ourselves through our data-driven approach and extensive experience managing 3,600+ campaigns. Our team understands the intricacies of App Development marketing and is equipped to drive real results for our clients, ensuring their apps reach and engage the intended audience effectively.

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FAQ

App Development questions.

How quickly will I see results from App Development?

You can expect to see initial results from your App Development marketing efforts within 10 days. However, significant improvements and ROI are typically realised over a longer period as we continually optimise your campaign.

What is the minimum budget for App Development?

The minimum budget for App Development marketing varies based on your specific goals, target audience, and the complexity of your campaign. We work with you to determine a budget that aligns with your objectives and ensures a strong ROI.

Do you manage App Development for multiple locations?

Yes, we manage App Development marketing campaigns for businesses with multiple locations, ensuring that your app is promoted effectively across a radius of 15–20+ miles around each location, reaching the right audience.

How do you track conversions from App Development?

We utilise a robust tracking system, including an Automated follow-up system, to monitor conversions and measure the success of your App Development marketing campaign. This enables us to make data-driven decisions and continually optimise your campaign for better performance.

How is OIESU different from other App Development agencies?

OIESU stands out due to our extensive experience in managing successful App Development marketing campaigns, particularly in industries such as healthcare, local services, real estate, and law. Our team is dedicated to delivering results-driven marketing solutions tailored to your business needs.

Free 30-minute strategy call

Ready to Optimise Your App Development ROI?

Book a Free App Development Account Audit today and discover how OIESU can help you achieve better campaign performance and a stronger return on investment.

Book My Free App Development AuditWhatsApp Us

Written by: OIESU's AI · Published: 1 January 2025 · Last updated: 14 June 2026
AI-generated, human-reviewed content.