Devtrox
hello@dev-trox.com United Kingdom
Introducing LaunchCrew · AI agents for app developers

We design software
that feels
unmistakably human.

Devtrox is a small UK product studio. We publish our own mobile apps and build LaunchCrew, a crew of AI agents that takes indie apps from build to store to growth.

A bright product design studio with engineers at work
Design notebook and pen on warm desk
LaunchCrew · AI agents for indie app developers

Your app's launch crew,
from build to store to growth.

Indie developers do the work of a whole team: compliance, store review, listings, marketing and promotion. LaunchCrew gives each of those jobs to a specialised AI agent, all working from your actual build. It grew out of everything we had to do by hand to publish Arrow Go and Mirror Beam.

See LaunchCrew in our work
01
Store review agent

Gatekeeper

Scans the build, metadata and screenshots for anything that would get the app rejected on the App Store or in Google Play Console, including policy breaches, missing permission reasons, misleading screenshots and accessibility gaps. It reports each issue with the guideline it breaks and a fix.

Vision · build analysis · cited guidelines
02
Privacy & compliance agent

Privy

Maps every SDK in the build to the data it collects, then generates the privacy policy, Play Data Safety answers and App Store privacy labels. It covers country-specific rules such as GDPR and UK GDPR, CCPA/CPRA, COPPA, Brazil's LGPD and India's DPDP Act, and flags drift when a new SDK ships.

Structured outputs · citations · build parsers
03
Store listing & ASO agent

Wordsmith

Writes the store title, subtitle, description and keywords, localises them into 20+ languages within each store's character limits, and drafts release notes from commits. It also produces A/B variants for every market.

Localisation · glossary · length validators
04
Marketing content agent

Reelmaker

Turns screen recordings and screenshots into marketing content: short vertical videos with cuts, captions and crops, store screenshots, feature graphics and post copy for each platform.

Vision on frames · FFmpeg edit plans
05
Social publishing agent

AutoPostKit

Connect TikTok, Instagram, YouTube, Facebook, X, LinkedIn and more once. AutoPostKit adapts each piece of content to every platform's format, schedules a posting calendar to promote your apps, and publishes after you approve.

Platform APIs · scheduling · approval queue
How the crew works
  • · One project per app. Every agent shares the same build, listing and analytics context.
  • · Every output passes a deterministic check: a schema, a validator or the store's own rules.
  • · Nothing is submitted or posted without a person approving it.
  • · Personal data stays out of prompts.
Talk to us about LaunchCrew
Shipped

Apps we publish ourselves.

How we build AI

AI you can check, not just trust.

i.

Evals first

We build a test set and a scorecard before the first prompt is written.

ii.

Verified output

Every output passes a solver, a schema or a validator, wired in through tool use.

iii.

Costs under control

Model routing, prompt caching and batch jobs, so running costs stay predictable.

iv.

Privacy by default

Personal data stays out of prompts. The same rule our apps follow.

Taking on new projects

Let's build the version of it that's
actually good.

Tell us about your team, the problem you're holding, and we'll come back with a one-page sketch of how we'd approach it — usually within 48 hours.