Why are you still handholding your app releases?

The broader context for why we're building Tramline

After the iPhone launched in 2007 and Android followed in 2008, mobile app development exploded. By the early 2010s, companies like Uber, Instagram, Snapchat, and WhatsApp had proven that mobile-first could be a dominant strategy.

Today, the mobile app ecosystem is massive. There are millions of apps serving billions of users. Companies of all sizes — from startups to enterprises — depend on their mobile apps to drive revenue, engage users, and differentiate from competitors.

But the developer tooling for mobile teams hasn't kept pace. Web development has CI/CD pipelines, deployment platforms, feature flags, and sophisticated observability. Mobile teams are still cobbling together scripts, spreadsheets, and manual processes to ship their apps.

The business impact of app releases is enormous. A bad release can tank ratings, drive user churn, and damage brand trust. Unlike web apps, you can't just roll back a bad deployment — once a build is on a user's device, it stays there until they update.

App stores change everything

The App Store and Play Store impose constraints that make mobile releases fundamentally different from web deployments. There's no continuous delivery — you submit a build and wait for review. There's no instant rollback — once a build is approved and distributed, it's out there.

This is closer to the old world of on-premise software than the modern web. And as teams grow, the complexity compounds.

“It was the most terrifying thing to take 10,000 diffs, package it…once it leaves the barrel, it's gone.”
— Chuck Rossi, Facebook Mobile Release Engineering

What a release cycle looks like

  1. Decide which features and fixes go into the release
  2. Create a release branch and bump the version number
  3. Kick off staging/RC builds for internal testing
  4. Distribute builds to QA and stakeholders via TestFlight, Firebase, or other tools
  5. Collect approvals from QA, product, and other stakeholders
  6. Submit the final build to the App Store and Play Store
  7. Monitor the phased rollout, watching crash rates and user feedback
  8. Handle hotfixes if something goes wrong mid-rollout
  9. Backmerge release fixes to the main branch so nothing is lost

Each step involves different tools, different people, and different sources of truth. The “Release Pilot” — the engineer responsible for the release that week — has to juggle all of this, often while also writing code.

When that person goes on vacation or leaves the team, the institutional knowledge goes with them. New team members face a steep learning curve.

The Mobile DevOps Platform

Tramline exists so your team can focus on building great products instead of managing the mechanics of getting those products to users. We automate the entire release cycle — from branch creation to store submission to phased rollout — so releases are predictable, transparent, and stress-free.