App development in Los Angeles, with a working demo in week one

Impervum is an app development studio in Los Angeles with a senior team. We build native iOS and Android apps and take them through App Store review: a working demo on your real workflow in week one, launch in about four weeks, a fixed quote up front, and the code is yours.

Book a 20-minute call →Updated 2026-11-05

What it does

In production: Three client apps live in the App Store

An at-home beauty booking app where clients pick a stylist and a time and the stylist comes to them; a booking app for a barbershop chain; and a training app for a professional boxer that reads sleep from the Oura ring.

3 apps in the App StoreBooking, payments, wearablesClient names under NDA where asked

How we build it

  1. Day 1A 20-minute callYou tell us what's slow or missing. We tell you honestly whether software fixes it.
  2. Day 2–3Scope and fixed quoteA written scope and a fixed price before any work starts.
  3. Week 1A working demoRunning on your real workflow. Not slides, not a mockup.
  4. Weeks 2–4LaunchProduction build, App Store, payments, your domain. The code lives in your repository from day one.
  5. AfterWe keep it aliveMonitoring, fixes and new features, by the people who built it.

Custom vs off-the-shelf vs a freelancer

Built with ImpervumOff-the-shelf SaaSFreelancer
Time to first working versionWeek oneNot applicableVaries
Fits your exact workflowBuilt around itYou adapt to itDepends on the person
Who owns the codeYouThe vendorOften unclear
PriceFixed quoteMonthly per seatHourly
Support after launchThe team that built itTicket queueIf they are available

Questions

How fast can you ship?
After a 20-minute call we send a written scope and a fixed quote within two to three days. You see a working demo on your real workflow in week one, and most projects go live in about four weeks.
Who owns the code?
You do. The code lives in your repository and every account, from the App Store to the servers, is in your name from day one.
Is the price fixed?
Yes. You get a written scope and a fixed quote before work starts. No hourly meter and no surprise invoices.
Do we need to meet in person in Los Angeles?
Not necessarily. We are based in Los Angeles and happy to meet, but most clients work with us over calls and a shared demo link.
Can you take over an app someone else started?
Yes. We review what exists, tell you honestly what is worth keeping, and move it into a codebase you own.

Related

Start

Tell us what you want to build or fix.

A founder replies within one business day to set up a 20-minute call. You get a written scope and a fixed quote before any work starts.

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