Custom apps

Your complete app, built as one system.

Backend, frontend, and native iOS and Android, built as one piece by the person who answers for all of it.

Why apps drift

One system, no seams.

An app usually means a chain: a backend contractor, a frontend contractor, a mobile shop, and a manager hired to keep them from drifting apart. Every seam costs time, and every seam is a place where your product becomes a little less yours.

Here the seams do not exist. Backend, frontend, and the native apps are one system, built to one standard, by one person who answers for all of it.

One system, no seamsLemonroot · app
Backend, frontend, and native iOS and Android, built as one piece.

Where the speed comes from

Rules that machines hold.

Not from working harder, and not from AI writing the product. The method is written down where machines read it, and the machines hold the line:

01

Lint that refuses inaccessible text

Any text element that ignores a user's font settings fails the build. The accessible version is not a guideline here, it is the only thing that compiles.

02

A guard on every deploy

No release command runs unless it was explicitly authorized. Shipping by accident is not possible.

03

Analytics, or it does not ship

A feature that arrives without its tracking is refused before review. What launches, you can also measure.

04

Tests generated with the feature

End-to-end flows are written alongside each feature and run against every build, so a regression surfaces before a user does.

The conventions run themselves. The hours go where they should: your product, the decisions, the details only judgment can get right.

Shipped this way

Precision runs on it.

Precision, Pnoe’s health platform, is built and maintained this way: the iOS and Android apps, the Apple Watch app, the HealthKit layers, and the engines that turn a person’s biomarkers into their program. It is on the App Store and runs inside Equinox and Four Seasons.

Measured on Precision

1codebase behind both the iOS and Android apps
3surfaces from one project: iPhone, Android, Apple Watch
2022the year Precision reached production, and still shipping
2,900+commits on Precision, four years of real work

From Pnoe Precision, the production app built and maintained this way. Verified from its git history, build targets, and App Store release (July 2026).

Start

Tell us about the app you need.

info@lemonroot.grAthens · working with clients anywhere
Guided project brief

Six short questions. You get a useful direction before you share your contact details.

  1. 01Start with the result
  2. 02See the likely project shape
  3. 03Send it for a personal review
What are you trying to make?
01 / 06Project

What are you trying to make?

Choose the closest starting point. You can change it later.