Why I built FlipperHelper
Valentina started reselling in early 2025. Her first month target was £200 turnover — a realistic starting goal. Every time she hit her target she doubled it for the next month. Within a year she went from charity-shop test runs to regularly clearing £1,300–£1,900 a month. Her record is around £1,700 profit in a single month. She makes £18–25k a year from reselling now.
The turning point was discovering car boot sales. Trains don’t work for early-bird boots, so she got a car. She wasn’t driving before — I taught her. Her business now pays all the car expenses.
For about a year she tracked everything in a spreadsheet. The spreadsheet kept getting in the way: she’d log a purchase at the stall, then forget which platform it was listed on, miss a fee, get the maths wrong on a per-item basis. After watching this for too long, I decided to build her a proper app.
FlipperHelper went live on the App Store on 21 March 2026. It’s free, offline-first, multi-currency, and tracks 16 selling platforms. Valentina is the lead tester — if a feature doesn’t survive a Sunday morning at a car boot, it doesn’t ship.