Frequently Asked Questions

Your deal data is stored locally on your device and backed up to encrypted cloud storage on AWS in the UK (eu-west-2 region). Data syncs automatically when you're signed in so you can pick up where you left off on any device.

Yes. All data is encrypted in transit with TLS 1.2+ and at rest with AES-256. The application is built following OWASP Top 10 security guidelines and is fully UK GDPR compliant. Your data is never shared with or sold to third parties.

All payments are processed securely through Stripe, which is PCI Level 1 certified — the highest level of payment security. We never see or store your card details. You can manage your subscription directly from the Settings page inside the app.

You get a full 7-day free trial with all Pro features — no credit card required. You can analyse up to 5 properties during the trial. When the trial ends, your data is preserved. You can subscribe at any time to pick up exactly where you left off.

AI analysis is only triggered when you explicitly request it (e.g. refurb estimates, deal verdicts). Only the deal data relevant to that analysis is sent to OpenAI's API. Your data is not used to train AI models.

The calculator supports four UK property investment strategies: Fix & Flip (buy, renovate, sell), Buy-to-Let (single tenancy rental), BRRR (Buy, Refurb, Rent, Refinance), and HMO (House in Multiple Occupation — rent by the room). Each strategy has its own KPIs, cost breakdowns, and sensitivity analysis.

When you request AI analysis, the calculator sends your deal data to OpenAI's GPT models to generate refurb cost estimates, GDV assessments, deal structure plans, and an overall verdict. Each AI module shares context from other estimators for more accurate results. You control when AI is used — nothing is sent automatically.