Choosing case management software for a PI practice

Disclosure: PIToolkit publishes this guide, and we make PI case-management software. We’ve tried to write the guide we’d want to read if we were buying, including where other tools are stronger than ours. Our buyer’s checklist, the questions to ask any vendor with our own answers, is on the compare page.

Most PIs start with a mix of tools: folders on a laptop, a spreadsheet of cases, email, a messaging app, a time tracker and accounting software. It works until it doesn’t. Files end up in five places, nobody can find last year’s report, and a client asks how their data is protected and there isn’t a clear answer.

Case-management software promises to bring it together. The market is small and mixed: Capterra’s investigation-management category lists over a hundred products, most of them built for corporate HR, compliance or law-enforcement teams rather than PIs. This guide explains the kinds of tools available, what to evaluate, and the questions that separate them.

The four kinds of tools

1. PI-specific case management. Built for private investigators: case types like surveillance and background checks, activity logs, report generation, client access, billing. This is where most solo PIs and small firms end up. Products differ a lot in maturity: some have a decade of development, mobile apps and integrations with investigative data providers; others are newer and narrower.

2. Legal practice management. Built for law firms (matters, calendaring, billing, document management). Some PIs, especially those who work mostly for attorneys, use them. They’re strong on billing and calendaring, less so on surveillance workflows and evidence handling.

3. Enterprise investigation platforms. Built for corporate security, compliance and law-enforcement teams. Powerful, often with strong compliance certifications, and usually priced and sized for organizations, with seat minimums that don’t suit a solo PI.

4. The do-it-yourself stack. Cloud storage, a secure messenger, a spreadsheet, a time tracker and accounting software. Cheap and flexible, and fine for some practices. The costs are hidden: time spent moving between tools, no single case record, no chain of custody, and security that depends on how carefully each tool is configured.

Start with your workflow

Pursuit Magazine’s case-management framework breaks an investigation into stages, from assessment and planning through fieldwork to the report the client sees. Map your own version before you look at software:

• How do cases come in, and what do you capture at intake?
• What kinds of cases do you run most (surveillance, background, locate, interviews, insurance)?
• What evidence do you collect, and how much? (Surveillance video fills storage fast.)
• Who are your clients, and how do they want updates and reports?
• How do you bill: hourly, flat fee, per-mile, retainers?
• Do you work alone, with a partner, or with subcontractors?
• Where do you work: at a desk, or mostly from a vehicle?

Then judge every product against those answers, not against its feature list.

What to evaluate

Case records and workflow

Can you set up case types that match your work? Is there a structured activity log for surveillance, or only free-text notes? Can you find an old case quickly? Can you attach checklists or templates?

Evidence handling

This is where products differ most, and where marketing is least precise.

• Does the software compute a cryptographic hash (such as SHA-256) of every file, automatically, when it’s added?
• Is there a tamper-evident record of each file and each action on it, or only an access log?
• Does it keep originals unaltered, and handle edited versions as separate files?
• Can it produce an evidence package with hashes for an attorney?
• Does it offer trusted timestamps (RFC 3161)?

An “audit log” that shows who opened a file is useful, but it isn’t the same as proof that the file hasn’t changed. See chain of custody for private investigators.

Security model

Ask who can read your data. Almost every vendor encrypts data in transit and at rest; the question is who holds the keys. In most systems, the vendor does, and its privacy policy may allow staff to access your data for support. A smaller number encrypt on your device so the vendor can’t read the content. Each approach has trade-offs; our zero-knowledge encryption explainer covers them, including what zero-knowledge doesn’t protect.

Also check:

• Two-factor authentication, and whether it’s available on every plan or only higher tiers
• Independent audits or certifications (such as SOC 2). Several established vendors have them, and that’s a real point in their favor, especially if your clients are insurers or corporations that ask for them
• Whether any of your content is sent to third parties, such as AI summarization services
• Where data is hosted, and what happens to it if you cancel

Attorney clients will increasingly ask you these questions, because they have their own confidentiality duties and those extend to what they share with you.

Client access

Is there a real client portal where clients log in to see updates, download reports and message you? Or is “sharing” a link or an access code? Can you control what each client sees? Is messaging tied to the case? How easy is it for a busy attorney or adjuster to use?

Reports

Can you build reports from case data (activity logs, evidence, notes) rather than retyping them? Can you customize templates per case type? Is the output professional enough to send to an attorney?

Time, expenses and billing

Can you track time and mileage against cases, including from the field? Does it produce invoices? Take payments? Integrate with your accounting software? Billing is an area where mature products are well ahead of newer ones, so check what’s actually available today, not on a roadmap.

Mobile and field use

If you spend your days in a vehicle, a good mobile experience matters: logging observations, capturing photos with metadata, tracking time. Some products have native apps; others are web-only or desktop-first.

Integrations

Do you need connections to investigative data providers, accounting software, calendars or automation tools? Established products have more of these.

Getting your data out

Can you export all your cases, files and records in usable formats? If the vendor raises prices or shuts down, how do you leave? Ask before you commit years of case files.

The real cost

Headline prices can mislead. Look at:

• The real entry price for the features you need. Client portals, extra storage and some security features are sometimes on higher tiers.
• Per-seat pricing versus flat pricing. Per-seat is cheaper for solo PIs and can become expensive for larger teams; flat pricing is the reverse.
• Storage limits. Surveillance video uses a lot. Check what happens when you hit the limit.
• Add-ons: data-provider fees, SMS fees, payment processing, onboarding charges.
• Trial or free tier. Many vendors offer a time-limited trial; few offer an ongoing free tier. Either way, run at least one real case through it before you pay.

Questions to ask every vendor

1. Who can read my case data? Can your staff?
2. Do you hash every file automatically? With which algorithm?
3. What independent security audits have you had?
4. Is two-factor authentication available on every plan?
5. Do you send my content to any third party, including AI services?
6. How do clients access reports and evidence?
7. What’s the full monthly cost for my case volume and storage?
8. How do I export everything if I leave?
9. What’s on your roadmap, and what’s actually available today?

A good vendor answers these plainly. Be wary of answers that retreat to adjectives (“bank-level,” “military-grade”) instead of specifics.

A sensible way to decide

1. Write down your workflow and your must-haves.
2. Shortlist three products, including at least one outside your first instinct.
3. Run a real (or realistic) case through each: intake, evidence, a client update, a report, an invoice.
4. Ask each vendor the questions above, in writing.
5. Choose the one that fits your work and whose answers you’d be comfortable repeating to an attorney client.

PIToolkit is in development. It’s built around encryption on your device (we can’t read your case data), automatic SHA-256 hashing of every evidence file into a signed hash chain on every plan, and a client portal with secure messaging. It doesn’t have a native mobile app, invoicing and payments, integrations or an independent security audit today, and those are places where established products are ahead.

Spotted an error? Tell us by email and we'll correct it.