App Modernization & Migration
Move legacy systems to modern architectures — better performance, lower maintenance.
or fill in the form
GG Tech's App Modernization & Migration service moves legacy systems to modern architectures. The move improves performance, lowers maintenance costs, and adds scalability. The goal is to reduce dependence on aging structures and make your system ready to grow on secure infrastructure.
| Typical team | 1 architect + 2 developers |
|---|---|
| Calendar band | 8–24 weeks |
| Phase split | 25% inventory & analysis · 45% migration · 20% parallel run & testing · 10% cutover |
What grows the budget
- Missing test coverage
- Undocumented behavior
- Downtime tolerance
- Data volume
Signs of underbudgeting
- No rollback plan
- No budgeted parallel run
These are GG Tech Teknoloji planning bands, not a quote; starting prices are on each service page. Every project is different, so the bands are deliberately wide; they assume a senior, focused team and typical scope, and your project is estimated individually.
What do we deliver?
App Modernization & Migration
Move legacy systems to modern architectures — better performance, lower maintenance.
Our team combines domain expertise, modern engineering, and research-driven design to build solutions that scale. We work in focused sprints with clear milestones and measurable outcomes.
Related services
Software EngineeringProduct Strategy & Advisory
Market research, roadmap planning, and technical advisory to build the right product.
Mobile App Development
Native (Swift, Kotlin) or React Native apps for iOS and Android — from the scope conversation to store release, in an 6–16 week planning band.
Web & SaaS Development
Browser-based business applications and subscription SaaS products — tenancy, roles and billing designed up front, in a 10–24 week planning band.
Custom Software Development
A system that runs on your own business rules, for processes packaged software cannot fit — from process analysis to data migration and a go-live without downtime, in a 12–32 week band.
MVP Development
A first release that tests one assumption with real users, with measurement built in from day one — scope cutting, fortnightly releases and launch, in an 6–10 week band.
IoT & Beacon Solutions
Indoor navigation, asset tracking, and connected device platforms.
Software Architecture & System Design
.NET backend architecture, the microservice-or-monolith decision, and a domain model that survives growth.
Database Engineering & Optimization
Schema design, index and query tuning on PostgreSQL and MS SQL Server — measured before and after.
System Integration & Central Platforms
Middleware and central systems that feed several applications from a single source of truth, at public-sector scale.
Last updated:
Let's talk about your project, we reply the same business day.
A 30-minute intro call: scope, timeline band and the right team.
Clutch 5.0 · team of 20 · Çekmeköy Municipality, NSC Soft, UKX
Message on WhatsApp