Comparison

CDC's Milestone Tracker vs Indigo Baby

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CDC's Milestone Tracker

Monitor your child's developmental progress from 2 months to 5 years with interactive checklists. Includes tips, videos, and guidance on when to seek professional advice. Easily share milestone summaries with healthcare providers.

Highlights
  • Add multiple children
  • Interactive milestone checklists
  • Milestone photos and videos
  • Developmental tips and activities
  • Guidance on early developmental concerns
  • Track doctor's appointments
  • Share milestone summaries
Features
Read full description

Milestones matter! Track your child’s milestones from age 2 months to 5 years with CDC’s easy-to-use checklists; get tips from CDC to support your child’s development; and find out what to do if you ever have concerns about your child's development. From birth to age 5, your child should reach milestones in how he or she plays, learns, speaks, acts and moves. Photos and videos in this app illustrate each milestone and make tracking them for your child easy and fun! Spanish photos and videos are coming soon! Features: • Add a Child – enter personalized information about your child or multiple children • Milestone Tracker – track your child’s development by looking for important milestones using an interactive checklist • Milestone Photos and Videos – know what each milestone looks like so that you can better identify them in your own child. • Tips and Activities – support your child’s development at every age • When to Act Early – know when it’s time to “act early” and talk with your child’s doctor about developmental concerns • Appointments – keep track of your child’s doctors’ appointments and get reminders about recommended developmental screenings • Milestone Summary – get a summary of your child’s milestones to view, and share with or email to your child’s doctor and other important care providers For more information and free tools to help you track your child’s milestones, visit www.cdc.gov/ActEarly. *This milestone checklist is not a substitute for a standardized, validated developmental screening tool. These developmental milestones show what most children (75% or more) can do by each age. Subject matter experts selected these milestones based on available data and expert consensus. CDC does not collect or share any personal information that can be used to identify you or your child.

About

Indigo Baby

This app provides a comprehensive early development program for children aged 0-5, featuring personalized learning journeys, interactive activities, and milestone tracking. Designed by experts, it aims to stimulate intelligence, creativity, and essential skills through engaging and fun tasks.

Highlights
  • Personalized learning journey
  • Interactive activities and games
  • Milestone tracking
  • Expert-designed content
  • Age-appropriate exercises
  • Intuitive interface
Features
Read full description

SUPPORT YOUR CHILD’S DEVELOPMENT FROM DAY ONE Join thousands of parents who trust our app to nurture their child’s early growth and learning. Our app offers a complete early development program for children aged 0-5, designed by experts to stimulate intelligence, creativity, and essential skills through engaging interactive activities. WHAT YOU’LL GET: - Personalized Learning Journey – Age-appropriate exercises tailored to your child's growth - Interactive Activities & Games – Develop motor skills, logic, and creativity through fun tasks - Milestone Tracking – Monitor progress and celebrate achievements - Engaging Tests & Challenges – Reinforce knowledge in a playful way - Expert-Designed Content – Developed with child psychologists and educators WHY PARENTS LOVE IT: - No intrusive ads – a safe and focused learning space - Simple, intuitive interface – easy for kids and parents to navigate - A fun, engaging approach – because learning should be exciting! Give your child the best start in life. Download now and start exploring! Privacy Policy and Terms and Conditions: - A monthly unlimited app subscription plan will be applied to your iTunes account at the end of your 3-day free trial. - A yearly unlimited app subscription plan will be applied - Payment will be charged to your iTunes account upon confirmation of purchase - Subscription will automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. - The subscription renewal fee will be deducted from the account within 24 hours prior to the end of the current period, indicating the renewal fee. - User can manage subscriptions and disable auto-renewal by going to User Account Settings after purchase. - You can cancel your subscription at any time - Privacy Policy and Terms of Use: https://www.indigoclub.org/policy

Screenshots

CDC's Milestone Tracker4 screens
Indigo Baby3 screens

Verdict

The call

The clearest difference is rating: CDC's Milestone Tracker at 4.9 against Indigo Baby's 4.0. CDC's Milestone Tracker also leads on in-app purchases (none vs 11) and ratings volume (11K vs 4). Indigo Baby's advantage is update cadence (fortnightly vs every 6 months). On price, review sentiment, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Indigo Baby sells 11 in-app purchases, starting at $4.99 per 7 days. CDC's Milestone Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CDC's Milestone Tracker holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: CDC's Milestone Tracker has 11K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 62% of CDC's Milestone Tracker's written reviews are positive against 67% of Indigo Baby's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

CDC's Milestone Tracker ships an update every 6 months, Indigo Baby fortnightly. The most recent releases landed on October 27, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
CDC's Milestone Tracker versus Indigo Baby: the parameters behind the verdict, then further details
ParameterCDC's Milestone TrackerIndigo Baby
PriceFreeFree
Rating4.9 (11K ratings) — better4.0 (4 ratings)
Positive reviews62.0% of reviews66.7% of reviews — better
Number of ratings11K — better4
Update frequencyEvery 6 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size61 MB78 MB
Age rating4+4+
DeveloperCenters For Disease Control and PreventionMaksim Iakuba

Customer experience

CDC's Milestone Tracker

All ratings9,979 ratings
Positive96.9%
Neutral1.5%
Negative1.6%
Written reviews108 reviews
Positive62.0%
Neutral14.8%
Negative23.1%

Indigo Baby

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews9 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

CDC's Milestone Tracker

Reported bugs

4 issues
  • Incorrect age display for children
  • Milestone checklist reset after app updates
  • Reference videos not working as expected
  • Inability to input child's exact age or prematurity details

Requested features

5 requests
  • Ability to sync data between multiple devices
  • Option to track milestones beyond early childhood
  • Integration with other child health and development apps
  • More customization options for milestone tracking
  • Improved data visualization and reporting

Indigo Baby

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CDC's Milestone Tracker

No in-app purchases

11 purchases

Indigo Baby

Subscriptions11
  • Unlimited Features3 Days trial$4.997 Days
  • Indigo Premium3 Days trial$5.991 Month
  • Indigo Premium$5.991 Month
Show 8 more
  • Unlimited Features3 Days trial$7.997 Days
  • Unlimited Features7 Days trial$9.991 Month
  • Unlimited Features3 Days trial$9.991 Month
  • Indigo Premium$11.993 Months
  • Unlimited Features3 Days trial$14.991 Month
  • Unlimited Features3 Days trial$24.991 Year
  • Unlimited Features$34.991 Year
  • Indigo Premium$35.991 Year

Questions

Is CDC's Milestone Tracker free?
CDC's Milestone Tracker is free to download, with no in-app purchases.
Is Indigo Baby free?
Indigo Baby is free to download, with in-app purchases available.
Which has better reviews, CDC's Milestone Tracker or Indigo Baby?
CDC's Milestone Tracker is rated higher. CDC's Milestone Tracker averages 4.9 out of 5 from 11K ratings, while Indigo Baby averages 4.0 from 4 ratings.
Do CDC's Milestone Tracker or Indigo Baby have ads?
Neither CDC's Milestone Tracker nor Indigo Baby shows ads.
Which is updated more often, CDC's Milestone Tracker or Indigo Baby?
CDC's Milestone Tracker ships an update every 6 months, and Indigo Baby fortnightly. Most recently, CDC's Milestone Tracker was updated on October 27, 2026 and Indigo Baby on October 11, 2026.

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