New app build
From a defined scope to a signed release sitting in both stores.
- Written product scope
- UI design and clickable prototype
- iOS and Android build
- Submission to both stores
We build, submit and maintain mobile apps — the kind someone installs in ten seconds and still has next month.
Where the builds get made, broken and signed off.
iOS and Android from a single build, with the platform differences handled where they matter — permissions, back navigation, notifications, keyboard behaviour.
Sign-up, sign-in, password recovery and the first three screens a new user sees. That sequence decides whether an install becomes a user.
Listing copy, screenshots, age rating, the data-safety form, and the resubmission when a reviewer sends it back with a question.
Versioned builds, staged rollouts, crash and ANR reporting wired in before launch rather than after the first bad review.
A written account of what the app collects, where it is sent and how long it is kept — so the store form and the privacy page say the same thing.
The screens are the easy half. What takes the time is everything around them: a sign-in that survives a lost password, a session that does not log people out on a train, an offline state that shows something other than a spinner, and an update path that does not strand the people still on last year's version.
We write that half down before we start. A scope document lists the screens, the states each one can be in, what happens when the network drops, and what the app is allowed to store on the device. It is short and it is boring, and it is the reason estimates stop moving halfway through.
Then the app gets built in slices you can install. Not a demo video — a build on your own phone, every two weeks, with the new part working and the old parts still working. If something in it is wrong, you find out in week four instead of at submission.
Pick the one closest to your situation — we scope the exact work on the first call.
From a defined scope to a signed release sitting in both stores.
You have an app and no longer have the team that wrote it.
Your team writes the code; we get it out the door cleanly.
An app that is live needs OS updates, SDK updates and small fixes forever.
Scope, timeline and cost are quoted in writing after that call. Nothing starts before you have it.
A call where you describe it in plain words: who opens it, what they do in the first minute, and what already exists — a design, a backend, an older build, a spreadsheet.
We send back the screen list, the technical assumptions, what is explicitly out of scope, and a cost and timeline against it. You read it before anyone commits.
Every two weeks a build lands on your phone with a note on what changed. You use it, we adjust, the scope document stays the record.
Store listing prepared, review questions answered, staged rollout watched with crash reporting on. After launch it moves onto an update cycle or back to your team with a handover.
When the work finishes, everything the app is made of is yours and reachable without us. That is a deliberate part of the engagement, not a favour at the end of it.
Plenty of people come to us because the last studio kept one of those four. A handover you can hand to someone else is the cheapest insurance an app owner can buy.
A sentence on what it does and where it is now is enough to start.
Thanks — someone from Northbay Systems will get in touch shortly at the address you gave us.
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