
Custom App Development for Financial Firms
If your financial firm has a workflow that standard software cannot handle, we build custom applications that connect intake, document collection, scheduling, calculators or internal tools, one phase at a time. You own the code and the data from day one. Your firm approves regulated content and sets the security, permissions, recordkeeping, maintenance and exit requirements before any development begins, and we build to those requirements.
When custom work makes sense, and when existing software is enough
Packaged software already covers a lot of ground: contact management, task tracking, document storage, e-signatures, planning output and client portals. If a product handles your workflow and its integrations reliably, adopting it costs less up front than building anything, and we will say so during discovery.
Custom work fits when the process crosses several systems or depends on firm-specific logic that a standard product cannot handle cleanly. Common cases include:
- Client intake with branching questions that follow your own rules.
- Document requests organized by client type, account type or planning engagement.
- Internal calculators for specialized planning, lending or fee scenarios.
- Scheduling that applies different meeting types, staff calendars, preparation requirements and eligibility rules.
- Client portals that combine status tracking, secure messaging, documents, forms and task notices.
- Dashboards that combine CRM, planning, billing and workflow data.
- Approval workflows for compliance review or partner sign-off.
- Data transfers between systems that do not connect on their own.
- New-client triage and routing, plus missing-document and deadline notices.
A custom build costs more up front than a standard tool, especially once security, integrations, testing, migration and documentation are counted. It tends to be reasonable when the workflow matters, repeats often, is hard to run with your current tools and is specific enough that a standard product does not fit. Discovery is where we find out whether configuring or connecting what you already use is enough, before any production work starts.
Some requests that sound like app development are a different job. A website redesign, search optimization, review management or video work solves different problems, and a custom site that needs logins, sensitive documents or internal business logic is an application. We sort this out at the start so you pay for the right thing. Our related services are described on the For Financial Firms page.
How a project runs
A well-run project starts with a specific operational problem, not a broad request to "build an app." We work in phases, and each phase is priced before it starts:
- Discovery: we identify users, the current workflow, systems, constraints, data types and the smallest useful outcome. The GOV.UK Service Manual describes this step as understanding users, constraints and the problem before building anything.
- Definition: we document requirements, roles, permissions, integrations, acceptance criteria, security requirements, ownership and maintenance responsibilities.
- Prototype: we test the riskiest assumptions with realistic users and sample workflows before production development. The same manual's description of the alpha phase frames prototypes as a way to test different solutions before committing to one.
- Build: work arrives in small increments, with demonstrations, testing and decisions recorded.
- Pilot: a limited group uses the application, we correct workflow and usability problems, and we confirm that your staff can operate it.
- Launch: we migrate or connect data, train users, set up support and define incident and change procedures.
- Maintenance: dependencies get patched, access gets reviewed, failures get monitored, documentation gets updated and enhancements get planned.
The failure markers are familiar: unclear ownership, scope that grows without decisions, no one on the firm side who owns the product, no compliance review, no usable acceptance tests, no migration plan, no documentation, and a system that only one developer knows how to run. The phases above are built to prevent each of them.

Security and records for client financial data
An application that holds client financial information has to fit the legal and contractual obligations your firm already has. We implement the controls; your firm decides which requirements apply to it and approves the operating model.
Regulation S-P, as amended in June 2024, applies to broker-dealers, investment companies, SEC-registered investment advisers, funding portals and registered transfer agents. It requires written incident-response policies for unauthorized access to or use of customer information, covering assessment, containment, control, recovery and customer notification. It also requires covered institutions to oversee their service providers, and a service provider must notify the institution as soon as possible and no later than 72 hours after becoming aware of a breach involving a customer-information system it maintains. We write that notice path into the agreement, because we are the service provider in that sentence.
The controls we build into an application follow the same list:
- Role-based access, so each user sees only the data and functions their role needs.
- Strong authentication and administrative access controls.
- Encryption in transit and at rest where appropriate.
- Audit logs for access, changes, downloads and administrative actions.
- Retention and deletion rules.
- Backup and recovery procedures.
- Incident detection and escalation.
- A documented way to produce records during an examination.
For how we write and maintain the software itself, we follow the practices in NIST's Secure Software Development guidance: documented security requirements, assigned roles and responsibilities, protected code and a process for responding to vulnerabilities.
Test data deserves its own rule. Real client information stays out of prototypes and test environments unless your firm decides it may be used and the right controls are in place. Representative sample data is the default.

Advertising and review records
Many firms ask for applications that touch advertising: a content-approval step, a testimonial form, a listing manager or a record of what was published and when. We build the workflow; your firm and its compliance professionals decide what may go live.
For investment advisers, the SEC's small-entity guide to the Marketing Rule covers Rule 206(4)-1, which applies to advertisements disseminated by advisers registered or required to be registered with the SEC. The rule bars untrue statements, misleading omissions, claims without a reasonable basis for substantiation and unbalanced treatment of benefits and risks. Testimonials and endorsements need clear disclosure of whether the promoter is a client and whether the promoter is paid. The rule also amended the Rule 204-2 books-and-records requirements, so firms decide how website, video, review and listing records are captured and kept.
For broker-dealers, FINRA says Rule 2210 applies to communications in any medium, including websites, email, social media and video. FINRA Regulatory Notice 12-29 describes the records involved: a copy of the communication, first-use and last-use dates, the approving principal and approval date where applicable, and the source of statistics and charts. FINRA's social media guidance adds that records of business communications are retained for at least three years, and the obligation follows the content, not the device or platform.
The FTC's Consumer Reviews and Testimonials Rule bars fake reviews, bought reviews that misrepresent real experience, incentives tied to a particular sentiment and review suppression through threats or intimidation. Its Endorsement Guides call for clear and conspicuous disclosure of material connections.
Software can hold the evidence: reviewer identity, consent, compensation disclosures, approval status, publication dates, edits and removal history, plus version history, timestamps and exports for an archiving system. Software cannot make a testimonial truthful, and it cannot decide whether a regulated firm may publish one. That judgment belongs to your compliance officer, broker-dealer principal, attorney or regulator.
What stays with your firm and what we handle
The clean division is that your firm owns business decisions, regulated content and approval, and we own implementation of the approved requirements.
Your firm handles or approves:
- Compliance review of website copy, videos, testimonials, endorsements, listings and client communications.
- Broker-dealer principal review or filing where FINRA rules and your supervisory procedures call for it.
- Adviser compliance review under the SEC Marketing Rule or applicable state rules.
- Privacy notices and client disclosures.
- Vendor due diligence and contracts.
- Data retention and recordkeeping policies.
- Whether client information may be used in testing.
- Final approval for production launch, plus employee training and supervision.
We handle:
- Requirements documentation and workflow mapping.
- Interface and experience design.
- Database and application structure.
- Secure sign-in and permissions.
- Intake forms and document workflows.
- Calculators with versioned assumptions, so a result shows its assumptions, version and date.
- Scheduling logic, dashboards and internal tools.
- Integrations with the systems you already use, and data imports.
- Audit logs, approval states and export functions.
- Testing, deployment and monitoring.
- Technical documentation, administrator guides and staff training materials.
- Maintenance planning and defect correction.
What to prepare before we start
Projects move faster when your firm brings:
- A written description of the current workflow.
- Examples of forms, spreadsheets, emails, checklists and reports.
- A list of users and permission levels.
- A list of systems that must remain the source of truth.
- Data categories, retention periods and deletion requirements.
- Integration credentials, passed through approved administrative channels.
- Compliance, privacy and information-security requirements.
- The person authorized to make workflow decisions.
- Test users and representative, properly protected test data.
- Acceptance criteria for each phase.
- A process owner responsible for adoption and ongoing maintenance.
Staff training, migration and adoption take time even when the software is technically finished, so a decision-maker who can give timely feedback matters as much as the code.
Cost, contracts and ownership
Custom work is quoted per project: a setup fee and a flat number agreed before work begins. The project is built in phases, each phase is priced before it starts, and there is no hourly meter. A focused first version usually takes weeks, and bigger systems get a written timeline. We do not publish a dollar figure for this service, because the number depends on your workflow, your systems and your security requirements.
Nothing on this page is a quote or a contract. Work starts with a signed written agreement that sets scope, price and timeline, along with a paid setup or build fee. That agreement should also state the term, support, hosting, change-request and termination provisions, plus deliverables, assumptions, exclusions, milestones, payment terms and what happens if the project stops. Read it for those items before you sign.
Ownership is written into the agreement too. You own your code, data, designs, documentation, analytics and accounts once the build fee is paid, and we transfer ownership of accounts to you as needed; accounts your firm already owns stay yours. Reusable libraries and third-party components carry their own license terms, so the agreement names them. If you leave, everything leaves with you: we hand over credentials and documentation, including source-code, administrator and deployment documentation, so another qualified provider or your own staff can maintain the application.
No application guarantees rankings, leads, clients, assets or results. A custom tool is justified by an operational problem, such as duplicate data entry, slow document collection, a calculation your tools cannot run or systems that do not connect, and the outcomes are operational: staff can explain who owns each step, users see only what their role allows, and the firm can see who changed, approved, downloaded or deleted information.
Frequently asked questions about custom application development
Does a custom application make our advertising compliant?
No. The application can route copy through an approval step and keep dated records of what was published, but your compliance professionals decide whether a claim, testimonial or listing may be used.
Can you connect the systems we already use?
We build integrations and data imports between the systems your firm already runs, for example a CRM, a planning tool or an accounting product, when those systems provide a way to connect. Discovery confirms which connections are possible and which system stays authoritative for each kind of data.
Who hosts the application, and what happens if we stop working with you?
Hosting accounts are set up as part of the agreement, and accounts your firm already owns stay your own. If the work stops, we hand over credentials and documentation, so the code, data and accounts leave with you.
What should not go into a prototype?
Real client information stays out of prototypes and test environments unless your firm decides it may be used and the proper controls are in place. We build and test with representative sample data first.
Can the system work in English and Spanish?
Yes, an application can present its screens and messages in both languages. We scope the translated content in the definition phase, and your firm approves any regulated wording in each language.
If you have a workflow in mind, contact us with a short description and we will start with discovery.