Sevyn Labs
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Apps your customers keep on their home screen.

iOS and Android from one codebase, through to launch on the App Store and Google Play. We design for the phones your customers actually carry, not the newest one on the desk.

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Builds from$18,900
Typical timeline8–12 weeks
Entry offerScope
Who you work withSheku, directly

What a mobile build covers.

01

iOS and Android from one codebase

One app, built once with React Native, that feels at home on both platforms. One codebase means one price and one set of updates, not two.

Right forBusinesses that need to reach customers on both platforms without paying twice.
02

The back end behind it

Accounts, data, payments, notifications and an admin dashboard your team uses to run the app day to day, without calling us.

Right forApps that do real work, beyond a brochure on a phone.
03

Launch on both stores

Store listings, screenshots, review submissions and the fixes reviewers ask for, handled for you through to the first public release.

Right forTeams who have never shipped an app, or never want to deal with app review again.
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Scope.

Before anything is built, we map your app with you and write it down: what gets built, what doesn’t, what it costs and when it lands. Nothing starts until you approve it.

Price$1,500, credited to your build
Takes1–2 weeks
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The core job
The one thing people will open the app to do, and how often.Apps people keep do one job very well. Everything else is version two.
The phones
What your customers carry, how they connect, and where they use it.An app built only for new phones on fast Wi-Fi fails everyone else.
Payments and accounts
How people sign in and pay, and what the app stores take from in-app sales.Store rules shape the business model, so we check them before we price.
Running it
Who updates content, prices and listings after launch.If only a developer can change it, it will go stale.
You getA written brief, a fixed price and a timeline. Go ahead, and Sprint starts from that brief. Don’t, and the brief is still yours.

Built for real phones. Handed over like a product.

What every mobile build includes, whatever its size.

Test builds every weekYou install the real app on your own phone every week of Sprint and tell us what to change.
Tested on modest phonesWe check it on an entry-level Android phone as well as a current iPhone, and on slow connections.
Your accounts, your appThe app is published under your developer accounts, and the code lives in your account.
An admin you can useYour team changes content, prices and listings from a dashboard, without a new release.
Accessible by defaultText sizes, contrast and screen reader labels are checked as part of the build.
Training at handoverYour team learns to run the app and the admin, with written notes to keep.

You see the price before we write a line of code.

  1. ScopeWe agree the core job, the screens and the price, in writing, before any code.Fixed brief and price · 1–2 weeks
  2. SprintA new test build on your phone every week, so you see the real app taking shape.Weekly test build · 2-week sprints
  3. ShipStore submission, review fixes and launch, then training for your team.Store launch and training · 1 week
  4. SupportA care plan keeps it working through new phone and operating system releases.Care plan or retainer · Ongoing
Fixed-scope buildOne app on both stores, at one written price.From $18,900
SprintA set block of build time for a focused goal, like a prototype to test with customers.$5,800 per 2-week sprint
Care & iterationUpdates for new operating systems, fixes and improvements, monthly.From $249 per month
See all prices

Mobile questions.

Anything else, ask us on a discovery call.

Often a fast website is enough. An app earns its place when people use it every week, need notifications, or need it to work with a poor connection. We will tell you honestly on the call.

Want an app your customers actually keep?

Book a discovery call