Meio & Mensagem · Media
The platform for Brazil’s leading marketing publication
The portal and CMS for Brazil’s leading communications and marketing publication.
View case study →Custom web applications and SaaS development
The software that runs your operation, or the product your customers subscribe to. Custom administration tools, APIs, and integrations with your existing systems. Fixed scope, pricing, and timelines.
- Since 2012
- 150+ products delivered
- Multi-tenant platforms & subscriptions
- Your source code after full payment
Who it’s for
When custom software makes sense
My operation relies on spreadsheets and disconnected tools
Records, orders, finance, and reports in one place, with role-based permissions and activity history.
I want to turn an established process into a SaaS product
Multi-tenancy, plans, subscriptions, onboarding, and recurring billing. From an idea to your first paying customer.
I have legacy software that is hard to maintain
A phased modernization plan: new foundations and screens, data migration, training, and an agreed operational transition.
What we deliver
What’s included
| Deliverable | Details |
|---|---|
| Responsive web application | Works on computers, tablets, and phones |
| Administration dashboard | Users, roles, permissions, reports, and exports |
| SaaS architecture where required | Multi-tenancy, plans, subscriptions, and recurring billing |
| APIs & integrations | ERP, CRM, payments, email, messaging, and legacy systems |
| Cloud infrastructure | AWS or Azure with agreed backup, monitoring, and scaling requirements |
| Security | Authentication, encryption, logs, and agreed data protection requirements |
| Documentation & source code | Transferred after full payment |
| 60-day warranty | Post-launch defect fixes under warranty; ongoing improvements through a monthly plan |
How it works
From discovery to go-live
-
Discovery
We map processes, users, and integrations, then agree on scope, price, and timeline.
1–2 weeks -
Architecture & design
Data models, integrations, and screens approved before development.
2–3 weeks -
Sprint development
Deliveries every two weeks in a review environment so your team can test the product.
6–10 weeks · 10–16 for complex platforms -
Go-live
Data migration, team training, monitoring, and a 60-day warranty.
1–2 weeks
Case studies
View all case studies → Platforms we’ve delivered
Comparison
Custom software, a SaaS product, or off-the-shelf tools?
Before requesting a quote, identify which approach fits:
| Off-the-shelf software | Custom web application | Your own SaaS product | |
|---|---|---|---|
| Best for | Standard processes already well served by existing tools, such as accounting or email | A distinctive business process that existing packages do not support | A process you understand and want to offer to other businesses |
| Cost model | Ongoing subscription | Initial development plus maintenance and improvements | Initial development plus ongoing product operations |
| Control | The provider defines the product rules | Your business defines the agreed application rules | Your product decisions and revenue model |
| When to reconsider | When adapting your operation to the tool creates recurring problems | When an existing product already solves the process well | When customer demand has not been validated |
If staff copy data between several tools, evaluate whether an integration or custom application would remove the duplicate work. If other businesses want to use your system, it may be worth exploring a SaaS product.
Pricing
What determines the cost of a web application?
- Modules and user roles. Records, orders, finance, inventory, reports, and access rules. Each module needs screens, business logic, and tests.
- Integrations. ERP, CRM, payments, invoicing, and messaging integrations. Available APIs and the quality of existing data affect the work required.
- Data migration. Moving historical records, cleaning them, and validating the result is a defined part of the project.
- Multi-tenancy and billing for SaaS. Customer data separation, plans, trials, subscriptions, and failed payments add requirements beyond an internal application.
- Reporting and analytics. A simple dashboard and a modeled reporting system with targets and alerts require different scopes.
No hourly billing: after discovery, you receive a fixed price. Changes to scope are agreed before additional work begins.
Discuss my budget Choosing a partner
How to choose a development partner
| Ask | Why it matters |
|---|---|
| Will I own the source code and data? | Clarify source code, documentation, data access, and hosting responsibilities. At Megaleios, source code and documentation transfer after full payment. |
| Are the price and timeline fixed? | Ask for an agreed scope, price, timeline, and change process. |
| How will existing data be migrated? | Migration needs a plan before development: sources, validation, responsibilities, and transition. |
| Who trains my team? | Training and documentation help staff use the system consistently. Confirm what the engagement includes. |
| How will security and data requirements be handled? | Identify access controls, logs, encryption, and data handling requirements during discovery and include them in the scope. |
| How will the system evolve? | Ask how new modules and ongoing improvements will be planned and delivered. |
Common mistakes
Common mistakes when commissioning custom software
- Automating a process before reviewing it. New software can reproduce an existing problem. Review the workflow before designing screens.
- Building everything at once. A phased rollout lets employees use and evaluate the first module before expanding the product.
- Leaving daily users out of design. Include the people doing the work so the application fits the actual operation.
- Underestimating migration. Historical data may contain duplicates and inconsistencies. Plan cleaning and validation as project tasks.
- Not assigning an internal owner. Name the person responsible for business rules, data, and priorities after launch.
Built with .NET · Node.js · React · MongoDB · PostgreSQL · AWS · Azure · Stripe · Metabase
FAQ
Web application and SaaS questions
What is the difference between an internal application and SaaS?
An internal application supports your operation. SaaS is a product other businesses subscribe to, adding requirements such as multi-tenancy, plans, billing, and onboarding. We build both.
How much does a web application cost?
It depends on the five scope factors above. After discovery, you receive a fixed quote without hourly billing.
How long does it take?
A medium-sized system typically takes 6–10 development weeks; larger platforms with multiple modules and integrations take 10–16. Discovery, architecture, and launch add time according to scope.
Can you connect to my current ERP or CRM?
Yes. We assess ERP, CRM, payment, messaging, and legacy system connections during discovery, including alternatives when no API is available.
Where will the application be hosted?
In the cloud, typically AWS or Azure, with the account, backup, and monitoring responsibilities agreed in the proposal.
Do you migrate data from existing software?
Yes. Migration is a project stage with cleaning, validation, and parallel operation where appropriate.
Will I own the code?
Yes. Source code and documentation are transferred after full payment.
Can we start small and expand?
Yes. We recommend starting with a module that solves a clear problem, then expanding through planned improvements.
What if we need changes after launch?
A 60-day warranty covers defect fixes. A separate monthly support and improvement plan provides a jointly prioritized backlog.
Do you work with companies in Brazil?
Yes. Megaleios serves companies in Brazil and the United States in English and Portuguese, with a U.S. company based in Orlando, Florida.
Tell us how your operation works. We’ll plan the software.
A reply within one business day from the person who will design your solution.
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