Big Daddy: Pregnancy Tracker

The Big Daddy – The Pregnancy App for Dads

Becoming a dad? You’ve got this.

The Big Daddy is the definitive modern pregnancy app built specifically to help fathers-to-be feel confident, help their partner and prepare for their baby. Get high quality, clear, practical, real-doctor guidance so you can support your partner, understand your baby’s development, and feel confident from week 1 to birth day. We don't need your email address so we don't ask for it; everything is private and secure, and stays on your phone. 

We're introducing the Bumpie(TM) - take weekly photos of your partner with our custom photo app that allows you to align and overlay previous photos for pro-level timelapse videos showing the baby growing - the ultimate pregnancy keepsake! Add in our home screen widget, contraction timer, baby decoder and our own name dictionary, this is pre-Dadding at the next level. 

Research shows that dads who are involved during pregnancy strengthen family bonds and reduce stress for their partner. This app helps you show up — informed, prepared, and ready.

Created in 2019 by a real dad and medical doctor, The Big Daddy is your weekly guide to fatherhood. 

Track Your Baby’s Development

• Weekly pregnancy updates from conception to birth
• Understand what’s happening with your baby and your partner
• Clear, no-nonsense explanations without overwhelming medical jargon

Visual Size Comparisons

• Fun, bold size comparisons each week
• Memorable visuals designed with dads in mind
• Shareable and easy to understand

Practical Advice for Real Life

• 40+ doctor-reviewed pregnancy articles
• Signs of labour, food safety, hospital prep, and more
• Straightforward advice on how to support your partner

 Be Ready for Birth Day

• Built-in contraction timer
• Hospital bag and birth prep checklists
• Custom baby name shortlist

Personalised Experience

• Add your partner’s name
• Custom due date tracking
• Clean, distraction-free design

Free Features

• Full weekly development tracking
• Size comparisons
• Selected guidance articles
• Completely ad-free
• Private and secure - everything stays on your phone. 


Premium Upgrade

Unlock the full experience with pro membership:
• All 40+ expert articles
• Contraction timer
• Complete checklists and name dictionary
• Bumpies

The information in this app is general educational content and is not a substitute for professional medical advice. Always consult a qualified healthcare professional for personalised guidance during pregnancy.