CDC's Milestone Tracker vs Oli Aquatics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Oli Aquatics
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Oli Aquatics, formerly Jim Booth Swim School, is proud to continue serving local families with warm, welcoming swim instruction centered on safety, confidence, and care. Our app makes it easy to find and enroll in lessons, manage schedules, payments, view attendance, skill progress, and stay connected with important updates. Wherever your family is in its swimming journey, our team is here to support each swimmer with patience, encouragement, and expert instruction.
Screenshots
Verdict
The clearest difference is update cadence: Oli Aquatics at fortnightly against CDC's Milestone Tracker's every 6 months. On price, ads, in-app purchases 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
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, Oli Aquatics fortnightly. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.
| Parameter | CDC's Milestone Tracker | Oli Aquatics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (10K ratings) — better | — |
| Positive reviews | 61.7% of reviews | — |
| Number of ratings | 10K — better | — |
| Update frequency | Every 6 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 61 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Centers For Disease Control and Prevention | iClassPro Inc |
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
Oli Aquatics
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CDC's Milestone Tracker
No in-app purchases
Oli Aquatics
No in-app purchases







