Service
Custom mobile app development for businesses
An app for your customers or your team, with scope, timeline and price fixed before development starts.
No obligation · 45 minutes · written feedback
São Paulo, Brazil
- Scope, timeline and price fixed before development
- Working software every 2 weeks
- You decide before paying anything
- Your company owns the code, by contract
It's a good fit when…
- Your customers are already asking to handle things from their phones.
- Your field team takes notes on paper or on WhatsApp and types it all in later.
- Orders, bookings or appointments come in by message and get lost.
- You want to launch a product that lives on people's phones.
- You know the problem the app needs to solve, but not where to start.
Sound familiar?Request a free assessment
Examples of what we can build
Bookings and scheduling
Appointments, classes, tours or services booked in the app, without the back-and-forth of messages.
Transportation and delivery
Orders, routes and delivery status, tracked by both the customer and the delivery driver.
E-commerce and marketplaces
Your own store, or several sellers in the same app, with a catalog, cart and checkout.
Apps for internal processes
Checklists, inspections and work orders done on the phone and sent straight to the system, instead of on paper.
Community and engagement apps
A space of your own where your customers or members get updates and talk to each other.
Common app features
- Push notifications
- Payments and integrations
- Admin panel
Don't see what you need here?Request a free assessment
How mobile app projects work
Free · when needed
What the app does first and a plan with a fixed timeline and price.
Working software every 2 weeks
Every 2 weeks, a working part of the app for you to use and test on your phone.
Support and continuous improvement
Ongoing
If you want, updates and improvements after launch, based on real-world use.
What gets pinned down before development
- iOS (iPhone), Android or both
- What lives in the app and what lives in your team's admin panel
- Which notifications the app sends, and when
- Whether app store publishing is part of the scope
Where you make the call
You don't commit to the whole project blind: no paid stage starts without your go-ahead.
With the written feedback in hand, you decide whether to go ahead. The Discovery Sprint, when it's needed, is free.
With the timeline and price fixed in the plan, you decide whether to move into development.
What drives the price of a mobile app
One platform or two
iOS and Android each have their own rules and devices to test on. Supporting both adds to the work.
Screens and flows
Every path a user takes, from sign-up to payment, is designed, built and tested.
Login and user types
A customer, a delivery driver and an admin, for example, see different screens. Each role is built and tested.
Integrations
Payments, maps and your company's systems: each connection depends on what the other side allows.
Notifications
Automatic alerts need rules: who gets them, when and why.
Admin panel
Someone will add products, approve orders or check reports. That panel gets built too.
Offline use
When the app needs to work without a signal and send the data once the connection is back, it takes more work to build.
We look at how each of these applies to your project, then fix the timeline and price before development starts, without charging anything until then.
How much custom software costs, and what drives the price
You don't need any of this figured out to talk to us:Request a free assessment
Our mobile app projects
Household gas bought from a phone and delivered straight to the consumer, on Android and iOS
The problemA cooking gas distributor needed an app for selling and delivering household gas (LPG) straight to consumers. It would be the brand's main app, built as a marketplace, for Android and for iOS.Services:Mobile appsRead the case study
A school management system that brings school administration, teachers and parents closer together
The problemThe goal was to bring together and connect three school audiences: the administration, the teachers and the students' parents. That called for a school management system that brought all three together, with access on the web and on phones.Services:Web applicationsMobile appsRead the case study
Monitoring and validating that workers use their PPE correctly, with sensors on the equipment itself
The problemA large energy company needed to know whether workers were using their personal protective equipment (PPE) correctly, meaning the safety gear each person wears on the job. That required monitoring how the equipment was used and validating that the use was correct.Services:Integrations and automationMobile appsRead the case study
Questions about mobile app projects
Do I need an app, or will a web application do?
If it'll be used on a phone, out in the field or by your end customers, you'll probably want an app. If it'll be used at the office, on a computer, a web application usually does the job. The free assessment helps you decide.
iOS, Android or both?
We can build for both. The choice is made with you before development, based on who will use the app and which devices those people have, because each additional platform adds to the build and the testing.
Do you publish the app to the app stores?
Publishing to the App Store and Google Play can be part of the scope. An app used only by your team, for example, may not need to be publicly available in the stores. This is decided with you before development, along with the rest of the scope.
How much does it cost to build a mobile app?
It mainly depends on the platforms (iOS, Android or both), the app's screens and flows, and integrations such as payments and maps. The price of your app is fixed before development starts. If there's already a budget for the app, tell us in the assessment.
Do I pay anything before development?
No. The assessment and, when it's needed, the Discovery Sprint are free. The paid stages are development, with the scope, timeline and price fixed before it starts, and ongoing support, if you want it.
How long does it take to build a mobile app?
The timeline is fixed before development starts, along with the price, and it depends on the scope. If the app has a launch date, mention it in the assessment. The date goes into the plan, so before development starts, you'll know what can be ready by then.
How do I know the project won't stall halfway through?
Projects usually stall when the budget runs out before the software is ready, or when nobody sees anything working until the end. Here, scope, timeline and price are fixed before development starts, and every 2 weeks you get a working piece: if something goes off track, you notice early, not just at the end. And the code built for the project belongs to your company, by contract: if you ever need to move to another vendor, it stays with you.
What if I need to change the scope mid-project?
You get working software every 2 weeks so you can spot early on what needs to change. If a change affects the scope, we agree on a revised scope, timeline and price with you before we continue.
How do I keep track of progress?
By using the software itself, no technical knowledge needed: every 2 weeks you get a working piece of it to use and give feedback on.
Does my company own the code?
Yes. The code built for your project belongs to your company, and that's written into the contract. If you ever want to continue with another vendor, the code is in your hands.
Will you sign a non-disclosure agreement (NDA)?
Yes. If your project calls for confidentiality, we'll sign the agreement before you share the details. Just ask on WhatsApp or by email at comercial@lemamon.dev.
Have a question that isn't answered here?
Ask us on WhatsAppOther services
- Web applications
Management systems, dashboards and portals built around how your company works.
- Integrations and automation
The systems you already use talking to each other, and repetitive tasks running on their own.
- MVPs and digital products
The first version of your product in the hands of real users.
- Support and continuous improvement
Maintenance and improvement for the system after it goes live.
Tell us what your app needs to solve
In 45 minutes, we work out who will use the app and what for, and you get written feedback afterward.
Free, no obligation to hire us
Free assessment: lemamon.dev/en/quote
Prefer email?comercial@lemamon.dev
São Paulo, Brazil
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