# CDC's Milestone Tracker vs Indigo Baby

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.

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.

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.

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.

## The numbers

| Metric | CDC's Milestone Tracker | Indigo Baby |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11K ratings)](https://appshunter.io/ios/app/cdcs-milestone-tracker/id1232718688/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/indigo-baby-development-app/id1281371043/reviews) |
| Number of ratings | **11K** | 4 |
| Positive reviews | 62.0% of reviews | **66.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Free** | Subscription |
| Size | 61 MB | 78 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [Maksim Iakuba](https://appshunter.io/developer/1782071773) |

## What reviewers say

### CDC's Milestone Tracker

[App page](https://appshunter.io/ios/app/cdcs-milestone-tracker/id1232718688)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Comprehensive milestone tracking
- 💡 Helpful videos and activities
- 🔍 Useful for monitoring child development
- ⭐ Great resource for parents and caregivers

**What reviewers complain about**

- 🐛 Bugs and glitches (e.g., app crashes, incorrect age display)
- 🔍 Overly sensitive to missing milestones, causing unnecessary worry
- 🗣️ Needs more language options beyond English and Spanish
- 🔗 Broken or missing links to external resources
- 🔍 Lacks flexibility for customizing milestones (e.g., for children with special needs)

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/indigo-baby-development-app/id1281371043)

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:** macOS Compatibility, Family Sharing

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Features | $4.99 | per 7 days |
| Indigo Premium | $5.99 | per month |
| Indigo Premium | $5.99 | per month |
| Unlimited Features | $7.99 | per 7 days |
| Unlimited Features | $9.99 | per month |
| Unlimited Features | $9.99 | per month |
| Indigo Premium | $11.99 | per 3 months |
| Unlimited Features | $14.99 | per month |
| Unlimited Features | $24.99 | per year |
| Unlimited Features | $34.99 | per year |
| Indigo Premium | $35.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*