Pregnancy tracking
Ovia vs Flo for twin pregnancy mode — which is more accurate at fetal sizing?
Common questionAnswered by Wermom EditorialUpdated June 11, 2026
MoDi twins, 14 weeks. Both apps offer multiple-baby tracking but I can't tell which one is doing more than just doubling the cliparts. Anyone been through this with both?
A question we hear often from parents. Here is our editorial team's evidence-based answer.
Wermom Editorial answer
Wermom Editorial TeamWermom Editorial· May 26, 2026
Verified May 2026: Ovia uses twin-specific fetal growth curves with a separate Z-score plot per baby. Flo's twin mode still uses singleton curves with a duplicated avatar. Ovia is materially more accurate here.