App Rewrites Used To BeInsanely Risky

Finally, a way to modernize legacy apps without losing your mind. Get unstuck without fear, faster than consultants driving Claude Code.

01 — You’re here because

Wings lifts you out of these problems:

01

New Revenue is Blocked?

Get Feature Dev Unstuck

Roadmap blocked by decades-old technology choices? Remove the obstacles and make the codebase an asset again.

For example:

Closed System → API-capable

02

Agents Stuck in Giant Monoliths?

Refactor for Agent Traction

Rebuild with a modular agent-legible architecture that gets you out of stored procedures and other vendor-locked ankle bracelets.

For example:

Monolith → Microservices

03

Compliance Is Coming For You?

Escape deprecated frameworks

Rewrite in modern supported frameworks before end-of-life becomes an incident.

For example:

AngularJS → React, Astro

04

The Team Has Left The Building?

Port to a hireable stack

Rewrite the entire codebase to the stack the team wants to build – and recruit – in.

For example:

VB → TypeScript, Rust

02 — Why you won’t get fired

Everyone knows rewrites carry risk: cost and schedule overrun, new bugs, missed features, even project failure.

We’ve seen too many of these disasters. That’s why Wings has a fresh approach:

Upfront Pricing, Pay On Delivery

Shift the risk off of your OKR review and over to us. Only pay for Wings when you like the results.

  1. 110% refundable deposit to start the project
  2. 240% refundable deposit to inspect the results
  3. 350% remainder when you’re satisfied
“Your pricing model speaks for itself”
– a satisfied customer

Where Faster is Actually Safer

You’ll know within a few weeks that Wings will finish your project.

The traditional approach would spend months planning (and still be wrong!)

Developers driving Claude Code or Codex still have to pause to eat, sleep, discuss, and get approvals.

Wings frontloads all the code-level decisions then unleashes thousands of agents who can work without waiting for their human supervisors.

Expert Guidance

Every Wings project is guided by a Forward Deployed Engineer from the Wings team. If you already have a plan for how to transform your app, they’ll run Wings to implement your plan. If you don’t yet have a plan, your assigned FDE can work with your team to build one.

Case Study:Automated migration of 140k lines of Vue 2 to Vue 3
03 — How it works

“That’s impossible”

– every Chief Architect before seeing Wings

If you’re not skeptical, you’re not paying attention. And your curiosity probably won’t be fully satisfied after reading this webpage. We’ll need to meet to fully answer all of your technical questions. To be honest, we were skeptical this could work as well. So we approached the challenge with three core questions:

What If All App Features Could Be Discovered, Documented, and Tested?

Even five-year-old codebases have dark, undocumented corners. 25-year-old codebases are full of them. This is why the received wisdom is to never do a rewrite: you’ll inevitably miss key features.

Wings breaks out of this bind by combining test fixture generation, agent-driven app exploration, and completeness checks. The result: a true inventory of all reachable app behavior…

What If You Could Take Full Advantage of Frontier Model Overhang?

We’ve all heard this claim that frontier models “are way more capable than how they’re being used,” with the culprit being the limitations of the harnesses like Codex and Claude Code combined with operators’ lack of prompt engineering skills.

There is ample reason to believe that a model that aces Math Olympiad questions, while also being a SME in most disciplines of science, and who has a working memory orders of magnitude larger than humans, can solve any code translation and refactoring exercise at least as well as the most skilled human developer–if only it could have the right prompt and the right tools…

What If You Could Break Free of Context Window Limits?

Frontier models become less capable as context grows. Each new model generation improves on this, but it’s still a limiting factor for the largest-scale work like large codebase rewrites. Some approaches require hand-holding the model through multiple sessions, but now the process runs at the speed of developer supervision rather than running at agent speed. Leaving another agent to supervise compounds the variability of the results.

Wings takes a different approach, always generating just the right prompt over thousands of sessions, but with rewrite-specific guardrails and proven reliability.

04 — Built for scale

Accelerate complex large-scale modernizations

It's time to think differently about modernizations. Pay down the tech debt without declaring bankruptcy. Wings completes projects that used to take months in days, with high quality.

Case study

Automated migration of 140k lines of Vue 2 to Vue 3

"Wings saved us 8 engineer-months on our Vue 3 migration."

— Donato Callahan, Co-founder & CEO, BrightInvestor

Read the case study
140klines migrated
Vue 2Vue 3
Nuxt 2Nuxt 4
VuexPinia
VuetifyTailwind CSS
JavaScriptTypeScript
05 — How it's built

Engineering, not vibes

Wings turns modernizations into a controlled engineering process that is resilient to LLM coding errors: scoped up front, executed systematically, and fully tested before it lands in your repo.

Diagram showing the Wings modernization engineering workflow

Reliable by design

01

Planning

Robust planning surfaces key decisions and risks upfront.

02

Structure

A structured pipeline keeps the modernization on track, ensuring completion at every checkpoint.

03

Constraints

Optimal constraints placed on the models — frontier models need freedom and supervision.

04

Parity Checking

Comprehensive parity tracking between original and modernized apps.

05

Testing

Disciplined testing of all modernized code.

06 — Team

Meet the team

Matt Trunnell

Matt Trunnell

Co-Founder

Matt has done his fair share of code migrations over a 20+ year career as a software engineer and engineering exec, including 10 years leading the app dev team at Netflix. His favorite migratory bird is the Great Blue Heron.

Nadav Benbarak

Nadav Benbarak

Co-Founder

Nadav has never had to code a migration, but is guilty of looking askance when told by his engineering counterparts that new feature development would have to "wait until after the migration." His favorite migratory bird is the Arctic Tern.

07 — FAQ

Frequently asked questions

Wings pricing is fast and easy. We'll give you a simple fixed price quote for your modernization type and size.

We take all the risk. Every project comes with a 100% money-back guarantee. We don't get paid unless the project meets your satisfaction.

A typical modernization takes several days. Why so long? It's a multi-step process that involves thousands of agent runs and testing to complete the rewrite.

No. Our technology runs on the foundational AI models (GPT, Gemini, Claude) and our contracts with them prevent training on Wings inputs.
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Ready to fly?

Give your modernization some Wings.