# CDC's Milestone Tracker vs Tummy Bear

The clearest difference is update cadence: Tummy Bear at every 2 weeks against CDC's Milestone Tracker's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CDC's Milestone Tracker ships an update every 6 months, Tummy Bear every 2 weeks. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CDC's Milestone Tracker | Tummy Bear |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11K ratings)](https://appshunter.io/ios/app/cdcs-milestone-tracker/id1232718688/reviews)** | — |
| Number of ratings | **11K** | — |
| Positive reviews | 61.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 61 MB | 47 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [Heeyeon Lee](https://appshunter.io/developer/6794189276) |

## 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


### Tummy Bear

[App page](https://appshunter.io/ios/app/tummy-bear/id6794189273)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is CDC's Milestone Tracker free?

CDC's Milestone Tracker is free to download, with no in-app purchases.

### Is Tummy Bear free?

Tummy Bear is free to download, with no in-app purchases.

### Do CDC's Milestone Tracker or Tummy Bear have ads?

Neither CDC's Milestone Tracker nor Tummy Bear shows ads.

### Which is updated more often, CDC's Milestone Tracker or Tummy Bear?

CDC's Milestone Tracker ships an update every 6 months, and Tummy Bear every 2 weeks. Most recently, CDC's Milestone Tracker was updated on October 21, 2026 and Tummy Bear on October 17, 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.*