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— FAQ

App development FAQ

How much does an app cost?

It depends on scope. Discovery and proposal are free: you get scope, timeline and price in writing before we start, with no commitment.

How long does it take?

Timelines are written into the proposal, split into builds you can install on your phone to see progress.

Do you issue invoices?

Yes. We issue Mexican invoices (CFDI), also when you pay in US dollars.

Do I own the code?

Yes. On completion you get the code, repositories, documentation and access.

Do you sign an NDA?

Yes, before you share project details, if you need it.

Who does the work?

We are a founder-led studio: the founder leads every project end to end, with specialists when the work calls for them. You always talk to the person who designs and builds.

Do you work remotely?

Yes. Over video calls (Google Meet), WhatsApp and email, on Mexico time (UTC−6), very close to US Central.

What happens after launch?

We offer monthly support with written response times: critical issues within 4 business hours, normal issues within 1 business day, plus a 60-day defect warranty at no cost.

Can you integrate with my ERP or current system?

We start with a scoped proof of concept to validate the integration before the full project.

What paperwork can you provide to procurement?

Mexican tax status certificate, positive SAT compliance opinion (32-D), model contract and NDA, on request.

Do you publish the app in the stores?

Yes. We handle the App Store and Google Play release, including Apple's review, and the store listing.

Do you work outside Puebla?

Yes. We work remotely with clients across Mexico and the US, over video calls, WhatsApp and email.

Do you work with US startups and bill in USD?

Yes. We sign a contract and NDA, accept USD payments and work on UTC−6, very close to US Central time.

Flutter or native?

We use Flutter when one codebase for iOS and Android makes sense, and native Swift or Kotlin when the app needs it, for example for widgets or system features.

Can you add AI to my existing app?

Yes. We first review your app and propose where AI genuinely saves work, with costs under control. Discovery is free.

What does the free discovery include?

A call to understand the problem, the users and your systems, followed by a written proposal with scope, timeline and price.

Can you adapt Inventra to my business?

Yes. Inventra can be the starting point for your inventory and sales system: we adapt it to your processes instead of starting from scratch.

Which technologies do you use?

Flutter, Swift, Kotlin, Firebase, FastAPI, Laravel and Electron; for AI, Claude, OpenAI and Gemini.

What does success look like for your product?

The first call and the proposal are free. The person who will lead your project replies in person.