Part of the Loopa iOS app guide.
The Measurements screen is where you record body-tape measurements and body fat, and watch them change over time. You reach it from Today's Page (scroll down to The Log and tap Measurements) or from The Quick-Log button by choosing Measurements. See Using the iOS app for the wider tour, and Body measurements for why the tape beats the scale on its own.
General wellness tracking, not medical advice.
Picking a site
A row of chips across the top lets you switch between body sites, which are waist, chest, hips, thigh, arm, and neck (the exact set comes from your account). Tap a chip to jump to that site, or swipe the measurement card left or right to move between them. Once you've changed or filed a site, a small green checkmark appears on its chip so you can see at a glance what you've already covered today.
Taking a measurement
The selected site fills a card with a tape-measure control you drag to dial in the number. The big readout above it shows the current value, and units follow your account setting:
- In inches, values read in eighths, a whole number plus a fraction glyph (⅛, ¼, and so on). The nudge buttons under the tape are −⅛ and +⅛.
- In centimeters, values read to one decimal and the nudge buttons are −1 and +1.
For an exact figure, tap the readout (or use the tape's enter-exact action) to open a keypad sheet and type it in.
Deltas over time
Above each measurement sits a delta pill that compares today to your last entry (for example "−1½ in since Mon"), and the tape carries a ghost marker labeled with that last value and its date. For sites where smaller is the goal (waist, hips, thigh, neck), a move in the right direction shows in green. A site you've never logged reads FIRST ENTRY instead.
Body fat
Below the tape sites there's a body fat % stepper field (steps of 0.1). It's separate from the tape sites, so you can log it on its own or alongside a measurement. For the bigger picture on what body fat and BMI do and don't tell you, see BMI and body composition.
Filing
The Save button turns on as soon as you've changed a measurement or your body fat number, and it saves everything you touched in one go. When it lands, a stamp animates over the card summarizing what you filed. For instance a green "−1½ IN · SINCE MON", a plain "HELD AT …" when nothing moved, "… · UPDATED" when you re-filed today, or a milestone note like "UNDER 40 · FIRST TIME" when you cross a whole-unit boundary the right way. If the network is slow the app quietly retries once before reporting a problem.
Editing the record
A Last filed header shows the date of your most recent entry. Its ⋯ menu offers Strike last entry to remove the whole thing, and pressing and holding a site's card offers Strike last <site> value to remove just that one measurement. Either way a confirmation dialog appears first, and a STRUCK FROM THE RECORD toast confirms the removal. After that the previous entry takes over as your latest.
Where it goes
Your measurement history flows into the charts on Trends on iOS, so waist and body fat can be read as a line, not a single number. Weight itself is logged separately. The weight quick-log opens here too, and Weight tracking covers it.
