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Which of these situations sounds like you?

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User roles

You have three roles: client, service provider, admin. Each needs its own flow, and it's unclear how to bring it all together into one product
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Technical debt

Your current app fails more and more often and is hard to maintain, but rewriting it from scratch without stopping the service isn't an option
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Enterprise level

You need an enterprise mobile app for a team of 50–500+ employees with SSO, Active Directory, and centralized device management
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Scalability

You need a product that can handle load and is ready to scale: the right architecture, a full-featured admin panel, and backend
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A non-standard task

Complex business logic, multiple API types, and non-standard scenarios mean your task calls for a comprehensive architectural solution
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Backend integration

You want to add a mobile channel to an existing product, but aren't sure how to integrate the backend without disrupting the current system

Super App is a mobile app with complex architecture

Super App differs from an MVP in the level of architectural decisions involved: multi-role navigation, offline-first design for corporate environments, phased migration from a legacy stack without service downtime, and integration with corporate infrastructure.

We roll out these products using a phased delivery approach. Each phase has a documented scope and fixed price. You see progress after every stage and make decisions about further development based on a real, working product.

Choose the configuration for your task

Configuration 1

Multi-role Platform

$25,000–40,000
12–16 weeks

A platform with three or more user types, each with its own full flow. One Flutter project, different interfaces and logic for each role.

Best for: marketplaces, on-demand platforms, B2B services with suppliers and buyers, service companies with a client, service provider, and coordinator.

Architecture:

  • A single Flutter project with role-based navigation: client, service provider, admin
  • Shared backend logic and database with no code duplication across roles
  • Different authentication and onboarding flows for each user type
  • Centralized admin panel: users, content, analytics
  • Real-time data updates: both clients and coordinators see the service provider’s status
  • Notification system with targeting by role and user action
Configuration 2

Enterprise Mobile App

$30,000–50,000
14–18 weeks

An enterprise mobile app for internal teams, from 50 to 5,000+ employees. Full enterprise security stack and centralized device management.

Best for: companies with distributed teams, corporations with strict security requirements, organizations with regulatory constraints on data storage and transfer.

Architecture:

  • SSO and Active Directory / LDAP integration: one corporate login across all systems
  • MDM: centralized app deployment, updates, and removal
  • Offline-first: full functionality without internet, syncing once a connection is restored
  • Security: data encryption, remote data wipe if a device is lost
  • Certificate pinning and MITM attack protection
  • Role-based access: permissions vary by position and department
  • Audit logging: a complete activity log for every employee for internal oversight
Configuration 3

App + Backend + Admin

$35,000–60,000
14–20 weeks

A full mobile stack from one team: Flutter app, REST API backend, and web admin panel.

Best for: startups in active growth and scaling; companies that need a mobile client, backend, and operational interface for their team in one project.

What’s included:

  • Flutter app for iOS and Android (cross-platform development)
  • REST API backend on Node.js or Spiro, depending on the task
  • Web panel for the team: content management, users, analytics
  • CI/CD pipeline: automated build, testing, and deployment on every update
  • Staging and production environments with data isolation
  • Monitoring and automated alerts: Sentry, Datadog, or an equivalent
Configuration 4

App Rewrite / Upgrade

$20,000–45,000
10–16 weeks

A phased migration from a legacy app to Flutter without service downtime or user loss.

Best for: companies whose app is losing performance, can’t handle load, or is expensive to maintain; products that need a modern architecture to support new features.

Migration process:

  • Technical audit: what to keep, rewrite, or reuse
  • Phased migration strategy: screens and modules prioritized by business value
  • Zero downtime: the old app stays live throughout the migration
  • Data migration and backward compatibility: users don’t lose their data
  • Parallel testing: new code is tested alongside the old before replacement
  • Gradual rollout via feature flags: new screens are enabled for a subset of users first, then for everyone once stability is confirmed

What results will you get from Super App?

A live
product

A Flutter app on the App Store and Google Play, backend in a production environment, admin panel, and all integrations fully ready for real-world load.

Flexibility in product
development

You get access to the product's code via GitHub or another repository. No vendor lock-in: you can continue development with us or with another team.

Technical
documentation

Architecture diagram, API documentation, ADRs (Architecture Decision Records) explaining technical decisions, a runbook for your DevOps team.

Figma file
and design system

A complete set of screens for all roles and platforms, a design system with components for further product development.

CI/CD
and monitoring

A configured pipeline: automated build, testing, and deployment. Staging environment for pre-production checks. Error monitoring and analytics from day one.

Recommendations
for Phase 2

Suggestions and guidance on next steps for product development, based on feedback from your first users.

Tell us about your task, and we'll help you implement it

How does the Phased Delivery process work?

Core

Business analysis and spec: locking in requirements, roles, and key scenarios. Technical architecture, project setup, core infrastructure. Authorization and basic flows for key roles. 1–2 mission-critical scenarios in working state. First internal release for the team to test.

Expansion

Feature expansion based on feedback from Phase 1. Implementation of remaining priority scenarios not included in Phase 1. Third-party integrations. Preparation for the public beta release.

Launch

QA on real devices and load testing. Analytics, initial AI features as needed. Performance optimization. App Store and Google Play listing preparation. Production deployment and public launch.

Ongoing Support

After launch: new features, fixes, updates for iOS and Android requirements, optimization based on real analytics.

Why FreshTech?

Traditional agency
FreshTech
Freelance team
Delivery timeline
6–18 months to first release
Fixed timeline
Timeline depends on freelancer availability
Budget
Budget can grow due to scope creep
Fixed price and scope for each phase
Budget is hard to forecast in advance
Team structure
Separate teams: mobile, backend, frontend
Full stack: mobile, backend, frontend, design, QA
Team composition is unstable and can change
Business analysis
Absent or limited
Business analysis and clear task planning before development starts
Absent or limited
Code ownership
Depends on contract terms, may require separate negotiation
Full code ownership
Depends on individual agreements with each specialist

What does this look like in practice?

case №1

Multi-role Marketplace

Multi-role Platform 14 weeks

Request: a B2B platform for direct sales with three roles: manufacturer, distributor, admin, each with different access.

Solution: a single Flutter project with role-based navigation: manufacturer publishes catalogs and handles requests; distributor browses catalogs, submits orders, signs documents; admin manages the platform via a web panel. Shared backend logic with no code duplication.

case №2

App Rewrite

React Native → Flutter 12 weeks

Request: a fintech startup on React Native with 2,000+ active users, experiencing declining performance under load.

Solution: technical audit, screen prioritization, phased migration via feature flags. The old app kept running for 100% of users while new Flutter screens gradually replaced it.

case №3

On-demand service

On-demand service 16 weeks

Request: a cleaning service platform with three roles: client, service provider, coordinator. Mobile app, backend with business logic, web panel for the team.

Solution: a Flutter app for clients and service providers (iOS and Android), REST API backend, web panel for coordinators, geolocation, status updates, Stripe payments, push notifications.

Frequently Asked Questions

How is Super App different from Consumer App MVP?
Consumer App MVP is your first move into the market: a minimal scope, one user type, 6–10 weeks. Super App is the next level: multiple roles with their own flows, complex architecture, full stack, or migration from a legacy product. If you're entering the market for the first time, start with Consumer App MVP. If your existing product needs to scale and grow, choose Super App.
What is Phased Delivery?
Can we start with one configuration and switch to another?
Can we order a Flutter client if we already have a backend and admin panel?
How long does App Rewrite take, and will it be seamless for users?
How much involvement is needed from our team?
Is Super App suited for investment due diligence?

Building something complex? Start with the right architecture

We'll go over your project on a free 30-minute call and provide a preliminary estimate of cost and timeline.
contact-image
Serhii Kutyr, CEO

[email protected]

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