Apps for iOS and Android

Apps your customers open every day.

We design, build and publish fast, stable apps for iOS and Android, and keep improving them with real usage data.

Get a quote See projects

Mobile Apps

Starting at$16.900.000

Get a quote

from one codebase when it makes sense: iOS + Androidfrom one codebase when it makes sense
between installable test builds: 2 weeksbetween installable test builds
crash-free sessions target: 99.5%crash-free sessions target
published on your developer account: 100%published on your developer account

What app do you need?

Pick one and we'll show you how we build it

Shopping and loyalty apps
Service and booking apps
Field team apps
Delivery and marketplaces
Health, wellness and education
AI-powered apps

How we work

Your app on your phone from the first weeks

Every two weeks you install a test build through TestFlight or Google Play, use it for real and decide what to adjust before launch.

Get a quote See the process

An app for every way to reach your customers

From a shopping app with saved payments to the tool your field team uses with no signal.

To sell more to your customers

Shopping and loyalty apps

Catalog, cart, saved payments, points, coupons and notifications that bring customers back.

Get a quote See plans

To book and serve

Service and booking apps

Appointments, queues, payments, chat with the business and automatic reminders on the phone.

Get a quote See plans

For teams on the street

Field team apps

Sales reps, technicians and couriers: offline forms, photos, signature, GPS and sync when the connection returns.

Get a quote See plans

To connect supply and demand

Delivery and marketplaces

Customer app, courier app and a business panel, with live map tracking.

Get a quote See E-commerce

To support your users

Health, wellness and education

Routines, courses, progress tracking, video content and community inside the app.

Get a quote See plans

For smarter apps

AI-powered apps

Assistants, image recognition and personalized recommendations connected to your data.

Get a quote See AI & automation

Everything an app needsto succeed in the stores

A good app is more than screens: it needs a solid back end, well-planned notifications, analytics and a rejection-free launch. One team owns it all.

01
Product strategy
We define the first version worth publishing and how you'll measure whether it works.
MVPRoadmapMetrics
02
Mobile UX/UI
Interfaces that feel native on each platform, following Apple's and Google's guidelines.
FigmaiOS HIGMaterial
03
Cross-platform and native
One codebase for iOS and Android when it makes sense, native when the app demands it.
React NativeFlutterSwift · Kotlin
04
Back end and admin panel
APIs, database, sign-in and a panel to manage content, orders and users.
Node.jsFirebaseAdmin panel
05
Notifications and engagement
Segmented push, in-app messages and links that open the right screen.
PushDeep linksSegments
06
Offline mode
The app keeps working without signal and syncs data when the connection returns.
OfflineSyncCache
07
QA on real devices
We test on high-end and mid-range phones across iOS and Android versions.
DevicesE2ERegression
08
Publishing and ASO
Listing, screenshots, privacy policies and Apple and Google review, plus optimization so people find you.
App StoreGoogle PlayASO

Native, cross-platform or web app?

There's no single answer: we recommend the technology based on your budget, your users and what the app needs from the phone.

Native

One app for iOS and another for Android, each in its platform's official language.

Performance
Cost savings
Time to market

Best when

You need maximum performance
You rely heavily on camera, sensors or Bluetooth
The app is your core product

Swift
SwiftUI
Kotlin
Jetpack Compose

Most chosen

Cross-platform

One codebase for iOS and Android, with an experience and speed very close to native.

Performance
Cost savings
Time to market

Best when

You want both stores from day one
You want to launch fast on a careful budget
You need offline mode and notifications

React Native
Flutter
Expo
Firebase

Web app (PWA)

A website that installs like an app from the browser, without going through the stores.

Performance
Cost savings
Time to market

Best when

You're validating an idea on a small budget
Your users arrive from the web
You don't need advanced phone features

Next.js
Service workers
Web push

In the first session we review your case and tell you which option fits and why, before quoting.

Your mobile squad

App specialists, from idea to store

Your app is built by a stable team that masters iOS, Android and store publishing, with one accountable owner in front of you.

A product lead as your single point of contact
An installable test build every two weeks
Testing on real high-end and mid-range phones
Publishing and handling Apple and Google review

Engynex mobile squad

Build 14 on TestFlight

Product lead
Dedicated
Prioritizes features with you and guards time and scope.
Mobile UX/UI designer
By phase
Designs screens that feel native on each platform.
Mobile developers
2–3 people
Build the iOS and Android app sprint by sprint.
Back-end developer
Dedicated
APIs, admin panel and integrations.
QA analyst
Dedicated
Tests every build on real devices before it reaches you.
Release and DevOps
By phase
Automates builds, signing and store submissions.

Squad size adjusts to the scope and pace you need.

What changes with your own app

A direct channel to your customers and your team, always in their pocket.

TodayWith your app

Channel: Today: You depend on social media and ads to be seen; With your app: Your icon on your customers' home screen
Communication: Today: Emails almost nobody opens; With your app: Push notifications at the right moment
Purchases: Today: Too many steps in the mobile browser; With your app: Checkout in a few taps with saved payments
Loyalty: Today: Paper stamp cards and generic discounts; With your app: Points, coupons and personalized perks
Field teams: Today: Paper forms and photos over WhatsApp; With your app: Offline forms with photos, signature and GPS
Data: Today: You don't know what customers do after buying; With your app: Usage analytics by screen and feature

Live in weeks, not years

We launch with the essentials, learn from real users and improve with every update.

More customers who come back

Notifications, perks and easier checkout bring customers back without paying for ads.

Decide with usage data

You know how many people use the app, which screens work and where they drop off, on a live dashboard.

Apps for every industry

We know what users in your sector expect when they open an app.

Retail and consumer
Catalog, shopping, loyalty and click-and-collect orders.
Health and wellness
Appointments, routines and telemedicine, protecting sensitive health data.
Logistics and delivery
Tracking, courier apps, proof of delivery and routes.
Finance
Balances, payments and applications with biometrics and PCI-DSS for cards.
Education
Courses, video classes, assessments and certificates.
Field sales and service
Orders, visits, inspections and work orders with no signal.
Real estate and residential
Amenity bookings, payments, requests and announcements.
Tourism and events
Bookings, digital tickets, agendas and interactive guides.

Quality measured on the device

Fast, stable and store-ready.

We measure the app the way your users live it: how long it takes to open, how smooth it feels and how many sessions end without an error.

Data encrypted on the device and in transit
Sign-in with fingerprint or face
Security verification with OWASP MASVS and Mobile Top 10
Apple and Google privacy policies up to date

Crash-free sessions

Automated tests

Accessibility

Published in your name

Delivery targets; service level agreements are set in the proposal.

Startup: < 2 s; Cold start
Smoothness: 60 fps; Scrolling and animations
Size: < 50 MB; Initial download

Delivery governance

You always have the latest build on your phone

We work in sprints and each one ends in a build you install and use, not in a report.

Every sprint
Planning
You choose with the product lead which features go into the next two weeks.
Daily
Team stand-up
A 15-minute internal sync; blockers that depend on you reach you the same day.
Every 2 weeks
Test build
You get the app through TestFlight or Google Play, use it and leave your feedback.
Monthly
Usage and quality report
Active users, crashes, reviews, progress against plan and next steps.
After launch
Release rhythm
Fix releases every month and new features every two months, plus compatibility with every new iOS and Android.

Targets we measure delivery against

between test builds: 2 weeks; between test builds
business day to answer your team: < 1 day; business day to answer your team
crash-free sessions target: 99.5%; crash-free sessions target
store releases without device testing: 0; store releases without device testing

We work in tools you can see too

TestFlight
Google Play Console
Firebase
Figma
Jira
Slack or Teams

Working targets; formal commitments are set in the proposal.

Apps already in their users' pockets

A few recent projects and what they achieved.

See full portfolio

Wellness

Pulse Fitness

50k+ downloads

Pulse Fitness

Mobile training app with personalized routines, tracking and community.

The challenge

Trainers sent routines as PDFs over WhatsApp and couldn't see whether clients followed them or keep them motivated.

What we built

An iOS and Android app with personalized routines, progress tracking, push reminders and a community to share achievements.

downloads: 50k+; downloads
stores: App Store and Google Play: 2; stores: App Store and Google Play
codebase for both platforms: 1; codebase for both platforms

5-person squad4 months

React Native
Node.js
Firebase
Push

Retail

Nova Retail

+38% online sales

Nova Retail

Omnichannel online store with real-time inventory and local payments for a retail chain.

The challenge

Customers shopped from their phones, but the mobile browser experience was slow and didn't know store inventory.

What we built

Omnichannel commerce with real-time inventory, local payments and a mobile experience built to buy in a few taps.

online sales: +38%; online sales
inventory across stores: Real time; inventory across stores
payment methods: Local; payment methods

5-person squad4 months

Next.js
Node.js
Payment gateway
ERP

Fintech

Helix Assistant

-60% response time

Helix Assistant

AI assistant that answers clients and automates support for a fintech.

The challenge

Customers wrote from their phones at all hours and the support team couldn't keep up with the same questions.

What we built

An AI assistant that answers in the customer's mobile channels, classifies cases and hands off to a person when needed.

response time: -60%; response time
customer service: 24/7; customer service
of handoffs with context: 100%; of handoffs with context

4-person squad3 months

Python
LLM
APIs
PostgreSQL

How we get your app to the store

From scope to the App Store, with builds you can use

From week two you install the app on your phone and give feedback on something real.

1
Stage 01
Scope definition
We prioritize the features of the first version: the minimum needed to ship and start learning.
1 weekMVP scope
2
Stage 02
Experience design
An interactive prototype you can tap on your own phone before investing in development.
2 weeksPrototype on your phone
3
Stage 03
Development and test builds
Every two weeks you get an installable build via TestFlight or APK to use for real.
6–12 weeksBuild every 2 weeks
4
Stage 04
Store submission
We prepare the listing, screenshots and privacy policies, and manage the Apple and Google review.
1–3 weeksStore review
5
Stage 05
Post-launch monitoring
We track crashes, reviews and adoption, and ship corrective updates.
OngoingMonthly report

We start with a free session: you leave with the first-version features, the recommended app type and a timeline estimate.

Book a session

What we build it with

Industry-standard technology, no inventions

We use mature tools with a community behind them. If you change vendors tomorrow, any team can pick up the work.

Swift
SwiftUI
Kotlin
Jetpack Compose
React Native
Flutter
Node.js
Firebase
Fastlane
TestFlight
App Store
Google Play

Choose how to build your app

Validate fast with an MVP, launch the full app or add a team that evolves it every month.

To validate your idea with real users

MVP app

The first version with the key features, published on the App Store and Google Play.

Essential features
iOS and Android
Store publishing

See plans

To run your business from the phone

Full app

Every feature, admin panel, payments, notifications and integrations with your systems.

Admin panel
Payments and push notifications
Integration with your systems

See plans

To evolve your app every month

Dedicated mobile squad

A design, mobile development and QA team working on your roadmap with a new build every sprint.

Shared roadmap
Test build every 2 weeks
Monthly usage and crash report

Talk to an advisor

Compare the models

Criteria	MVP app	Full app	Dedicated mobile squad
Best for	Validating an idea	Launching a business channel	Evolving an existing app
Scope	Essential features	Every feature and the panel	Prioritized every sprint
Pricing	Fixed per project	Fixed per project	Monthly per squad
Typical length	2 to 3 months	4 to 6 months	6 months or more
Store publishing	Included	Included	Every update
Test build every 2 weeks	Yes	Yes	Yes

Your app, your rules

The clear terms you expect before investing in an app.

Accounts and code in your name
The app is published on your Apple and Google accounts and the code lives in your repository.
Confidentiality
We sign a non-disclosure agreement before we hear your idea.
Until it's published
If Apple or Google request changes during review, we make them until the app is approved.
We stand behind our work
Bugs in what we built are fixed at no cost during the support period.

Choose the plan that fits your project

Reference prices in Colombian pesos. We adapt the scope to what you actually need and send you a formal quote at no cost.

MVP App

From

$16.900.000one-time

COP

A hybrid iOS and Android app with the essential features of your idea.

Request a quote

Includes

Up to 10 screens with custom design
Sign-up, login and push notifications
Publishing on the App Store and Google Play
Basic admin panel
2 months of support included

Business App

Popular

From

$29.900.000one-time

COP

A complete app with its own backend, payments and integrations with your systems.

Request a quote

Includes

Unlimited screens and offline mode
Backend, API and admin panel
Payment gateway and invoicing
Usage analytics and segmented notifications
6 months of support and store updates

Native App / Marketplace

Custom

Tailored quote

Native development, real-time geolocation or marketplaces with multiple profiles.

Talk to an advisor

Includes

Native iOS and Android development
Geolocation and real-time features
Multiple user profiles
Scaling and load testing
Support with SLA and monthly enhancements

Values are in Colombian pesos (COP) and exclude VAT. The final price depends on the agreed scope; quotes and advice are always free.

Included in every app

Prototype on your phone
iOS and Android app
Store publishing
Admin panel
Push notifications
Analytics and crash reporting
Code and accounts in your name
Post-launch support

Have an app idea? We'll tell you how to make it real

FAQs

We recommend the technology based on your budget and needs. Hybrid apps cut costs while keeping high quality.

Yes. We manage the entire publishing process on the App Store and Google Play.

We offer maintenance plans to keep the app compatible with new iOS and Android versions.

Yes, and we recommend it: apps are published under your developer account so ownership stays with you. If you don't have one, we help you create it (Apple costs USD 99 per year, Google USD 25 once).

With a maintenance plan we keep the app compatible and publish the updates. Without a plan, we quote the update whenever you need it.

Yes. From the first weeks you get access to test builds (TestFlight and APK) so you can use the app while we build it.

It depends on the features. A first version (MVP) usually takes 2 to 3 months to reach the store and a full app 4 to 6 months. The plans on this page give you a starting point and in the first session we estimate your case.

Yes. We design offline mode so your team or customers keep working with no signal; data syncs automatically when the connection returns.

Yes. We integrate the app with your ERP, CRM, e-invoicing, payment gateways or any system with an API, and if it has none, we build the bridge.

We keep a release rhythm: monthly fix releases, new features every two months and compatibility with every new iOS and Android version, along with a usage and crash report.

About working with Engynex

For one-time projects we work with 50% upfront and 50% on delivery; large projects are split into milestones. Monthly plans are billed at the start of each month. We accept bank transfer, PSE and card.

No. All published values are in Colombian pesos before VAT. The formal quote shows the full breakdown.

Every development includes a warranty on functional defects (2 to 6 months depending on the plan). We fix any failure attributable to our work at no cost.

One-time projects have no minimum term. Monthly plans are agreed for 3 or 12 months depending on the service, and it's always in writing before we start.

Yes. We serve clients across Latin America remotely and can invoice in US dollars when needed.