AI Invoicing App Builder for Private Investigators
An invoicing tool shaped like your private investigation agency: your services, your tax rate, your terms. Describe it once, then issue invoices from a page instead of a template file.
Who it's for
Owners of private investigators who want invoices numbered, stored and searchable without paying per month for accounting software.
What you can build
- Clients with billing details and payment terms
- Invoices with line items for background checks and surveillance, tax and totals
- A PDF you can download or email to the client
- A paid / unpaid / overdue list with what is due this week
- Quotes that turn into an invoice once accepted
How private investigators work
A private investigation agency takes on background checks, surveillance, tracing and process serving for law firms, insurers, businesses and individuals. Work is billed by the hour plus mileage and expenses, and surveillance can mean long days in a car with little notice. Case files hold notes, photos, video and reports that may end up in court. Licensing and what investigators may lawfully do differ by jurisdiction, so check the rules that apply where you operate. Software organizes cases, hours and evidence; it does not decide what is lawful.
What invoicing app for Private Investigators has to handle
- Invoices list surveillance hours, report writing, mileage and expenses separately.
- Retainers are common for private clients, with work drawn down against them.
- Law firms may need invoices referencing their file number.
- Receipts for expenses such as parking should be attached.
A tip for private investigators
Log hours and mileage the same day, ideally from a phone. Billing from memory days later leaves money on the table, and law firms and insurers expect itemized time that matches the report.
A prompt to start from
Build an invoicing app for a private investigation agency. Keep a list of clients with client name, case type and subject. Create invoices with a number, date, due date, line items for background checks, surveillance and process serving, quantity, rate, tax and total. Generate a printable PDF, mark invoices paid or overdue, and show a dashboard of outstanding money. Add quotes that can be converted into an invoice, and store everything in a database.
Questions
Can we draw work down against a retainer?
Yes. Record the retainer on the case and each logged hour reduces the balance, with a warning when it runs low.
Can it produce a PDF?
Yes. Ask for a printable invoice and Mythex builds a clean PDF layout with your details, logo and numbering, which you can download or attach to an email.
Does it handle tax?
Say which tax applies and at what rate and it is calculated per line and shown in the total. If you bill in more than one currency, say that too.
Do I need to know how to code?
No. You describe what you want in plain language and Mythex writes the code, shows a live preview, and lets you change things by chatting. The code editor and terminal are there if you ever want them.
Do I have to explain my business every time?
No. Mythex remembers who you are and how you work across every project, and follows the standing notes you set for a project, so you are not re-briefing it in each new chat. You can read, edit or switch all of it off.
How much does it cost?
There is a Free plan with daily credits, enough to build and publish a first version. Pro is $25/month and adds full code editing, GitHub export, custom domains, and credit top-ups.
Templates to start from
- Agency Portfolio Template — Pricing calculator with booking
- Mortgage Calculator Template — Live amortization with PMI
- Finance Dashboard Template — Board-ready finance reporting
- Fintech Payments Site Template — Tiered pricing, blog, animations
- Plumbing Business Site Template — Quote calculator with lead dashboard
- Invoice Generator Template — Canvas invoicing with PDF export
- Expense Claims App Template — Receipt uploads with policy checks
- Sales ROI Calculator Template — Three-scenario models and branded PDFs
Guide
More ways to build with AI
- AI Website Builder for Private Investigators
- AI Client Portal Builder for Private Investigators
- AI CRM Builder for Private Investigators
- AI Landing Page Builder for Private Investigators
- AI Dashboard Builder for Private Investigators
- AI Staff Scheduling App Builder for Private Investigators
- AI Invoicing App Builder for Pressure Washing Services
- AI Invoicing App Builder for Print Shops
- AI Invoicing App Builder for Private Chefs
- AI Invoicing App Builder for Private Schools
- AI Invoicing App Builder for Promotional Products Suppliers
- AI Invoicing App Builder for Property Developers