Move old code forward without stopping the product
Take over an app another team built, or upgrade one nobody wants to touch, while users keep using it.
Typical shapeAn audit first, then a staged move to Flutter or upgraded native code behind feature flags.
- Live
- in the stores the whole time
- 1
- codebase at the end
- 150+
- apps behind our playbook
Sounds familiar?
Every change breaks something else
The team that built it is gone
The framework or SDK is years behind
What we modernize
Pick what needs work. The panel shows who works on it.
Your team for this scope
- Delivery lead
- Flutter engineer
- QA engineer
- DevOps engineer
We start with an audit, so you see the plan before any large change.
Send this scope to an engineerHow we modernize without downtime
How we deliver
1. Diagnose2 weeks
What to keep, what to replace, and in which order.
You get: a migration plan with risks named
2. Migrate in stages6 to 12 weeks
Module by module behind feature flags, so users never see a freeze.
You get: new code in production, step by step
3. Runongoing
Updates, monitoring and new features on the new base.
You get: a product your team can change again
Often paired with
Modernization questions
No. New screens ship in the new code while old ones keep working.
What clients say after working with us
Verified reviews, quoted as published on Clutch.
5.0★★★★★15 reviews on Clutch
4.9★★★★★114 reviews on Upwork, 100% job success
“They are all very hard workers, and the language difference causes no barrier whatsoever.”
Co-Founder and Head of Product, Capsll
Mobile app, Jun 2023
“The most valuable and pleasant quality is their level of communication.”
CEO, giftmall
Mobile commerce app, Jun 2023
“They care about the product and are always involved in the product decisions.”
CTO, Value-Ad
Flutter SaaS app, Mar 2021
“We are impressed by the team’s development skills.”
CTO, Lupiter GmbH
Service agent app, Oct 2021
“They coordinated team-building activities for their team and helped them grow in their careers.”
CTO, Clever FM
Podcast app, Oct 2021
“The project manager was dedicated to us, easy to communicate, and understanding of our needs.”
CEO, GenTech Innovations
Flutter app, Nov 2021
- 150+
- products shipped since 2017
- 5M+
- downloads across our apps
- 4.9
- average store rating
- #1
- product of the month in Health and Fitness (SOL)
Tell us about the app you want to modernize
30 minutes with an engineer. You leave with a plan, the team it needs and a realistic timeline.
Engineers in Kyiv and Wrocław. Reply within 24 hours.