Foot Size Check

Trace the foot on A4 paper and take a photo. Length, width, and shoe size are measured automatically, and the outline is kept at true size. No mat, no sign-up.

Foot Size Check measures feet with nothing but a sheet of A4 paper and a photo.

Kids' feet grow fast. Place a foot on A4 paper, trace around it with a pen, and photograph the sheet. The app reads the outline and measures foot length, width, and a suggested shoe size automatically. No points to line up by hand. The outline is kept at true size.

Features:

• A4-paper-based foot measurement (length and width)
• Automatic measurement: the traced line is read, heel, toe, and width points are placed for you, and length and width are calculated (you can still adjust by hand)
• Foot outline: the traced line is saved as a true-size shape
• Foot outline card: send it to family right after saving
• Suggested shoe size (foot length plus about 0.2 in of room, the recommended inside length)
• EU, US and UK conversion in the record detail, and the shoe size shown in your own notation (choose JP, EU, US or UK in Settings)
• Shoe size chart: switch between children, men and women to look up foot length against EU, US and UK
• Growth history saved over time
• Track left and right feet separately
• Fine-tune measurement points by hand
• Growth card: share the latest length, outline, and chart as one image with family
• Measurement reminder: at an interval that matches the age (every 3 months up to age 3, 4 months to age 6, 6 months from age 7; guidance from the Japanese Society of Podiatric Medicine)
• Birthday messages: add a birth date and get one quiet greeting that morning
• No account, no ads. Photos and records stay on your device (iCloud sync is optional, with Pro). The developer cannot read your data

Foot Size Check Pro (optional one-time purchase):

• Same-age reference band on the growth chart (by sex; published survey data from Japan, Spain, or China)
• Register more than one child (siblings; one is free)
• iCloud sync: records and outlines are saved to your own iCloud, come back after a new phone or reinstall, and appear on your other devices (photos stay on the device)
• Measuring, records, the chart, shoe notes, reminders, and birthday messages stay free. Not a subscription

Note: results are estimates only. Shoe fit varies by brand, model, and foot shape. We recommend measuring in person before buying shoes.