The Big Daddy – The Pregnancy App for Dads
Becoming a dad? You’ve got this.
The Big Daddy is the modern pregnancy app built specifically for fathers-to-be. Get clear, practical, doctor-informed guidance so you can support your partner, understand your baby’s development, and feel confident from week 1 to birth day.
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 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 a simple one-time payment:
• All 40+ expert articles
• Contraction timer
• Complete checklists
• Lifetime access
Available for £1.99 / $1.99 / €1.79 / ¥200.
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.
My Wife and I are expecting our second child. I really liked the free version but my curiosity got the better of me so I paid for the full version. Let me tell you, that I wish I had all of that information the first time. The very first time I heard the term pre-eclampsia was the day my wife was admitted to the hospital at 29 weeks. Everything this app has to offer is pure gold. Great app for first time dads.
Hyperemesis gravidarum
bradleydaddyy
It saddens me to see all this app offers but nothing on Hyperemesis gravidarum my wife has this incurable disease that has many asking once I tell them she is HG they ask what is it? There are a good few women who have this and it’s not talked about enough to educate people on the topic, it’s a very scary and life threatening disease to the mother and baby and I hope to see in the future more talk about this and ways to help these women who suffer through it if they even can make it through it without termination or death to the baby or mother everyday I wake up knowing I could lose one or both and all I can do is watch her suffer and i sit Idlelea by her it’s a pain I suffer knowing there’s nothing I can do to help so I hope in this review something can help change the topic of HG till then i will still be an advocate for those women in hopes of change and talk
Third Time Around
Cleazell
This is my third child and I’ve used this app every single time. It’s so much great information in this app, and it got jokes 😂😂😂But most definitely keeps you up to date on what’s going on with you child and the mother, so as a father you are prepared for what’s going on with baby and your wife.It’s great.
Great for dads
miggy_cali
Overall this app was great for me as a new dad to be! It was fun to see the different analogies they and looked forward to the weekly updates with the wife! Would definitely recommend. My one suggestion would be to add a sharing function so I can share the weekly updates with my wife.
Developer Response
Thanks for the great feedback and congratulations on joining the dad club! We completely agree with you - a sharing feature is on the way. Thanks for taking the time to review our app and best wishes for the adventures ahead.
An overhaul of the weekly sizes including all new icons and support for people who'd prefer not to see meat or alcohol - go to settings to select plant-based or alcohol-free preferences
Version 3.1.0
The developer, Christopher Deutsch, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Christopher Deutsch
Size
104.1 MB
Category
Medical
Compatibility
Requires iOS 17.6 or later.
iPhone Requires iOS 17.6 or later.
iPad Requires iPadOS 17.6 or later.
Mac Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
Infrequent Profanity or Crude Humor Mature or Suggestive Themes Medical Treatment information Alcohol, Tobacco, Drug Use or References Sexual Content or Nudity