Aside from apps, the mirror (take a pic once a month) and a pair of trousers that should just fit are excellent low-tech tools.
Body fat is easish to gauge via photos, if you don't need to be 1% spot on.
Myfitnesspal is crap for data export there's a little web plugin though.
@JWestland started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Aside from apps, the mirror (take a pic once a month) and a pair of trousers that should just fit are excellent low-tech tools.
Body fat is easish to gauge via photos, if you don't need to be 1% spot on.
Myfitnesspal is crap for data export there's a little web plugin though.