CDC vs Koiya
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CDC
Access the latest health information and news directly from the official source. Organize your home screen to prioritize what matters most and receive real-time updates. Explore a variety of content including disease data, videos, podcasts, and journal articles.
- Up-to-date health information
- Customizable home screen
- Disease case counts
- Videos and podcasts
- Journal articles
- Searchable web content
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Get the official CDC Mobile application to access the most up to date health information. FILTERING OPTIONS Organize your home screen so that the information that’s most important to you appears first! Turn off the content you don’t want with just a flip of a switch and reset it all with the tap of a button. CONTENT The app ensures that you’re getting the most up to date health information. The home screen lets you see all your information in one place and updates whenever your device is connected to WI-FI. Enjoy a greater variety of content such as Image of the Week, disease case counts, videos, and podcasts to give you the most current health information from CDC. Browse the latest articles, stay on top of health news in the Newsroom section, and view CDC Images of the Week. If you’re a journal reader, view the latest Morbidity & Mortality Weekly Report, Emerging and Infectious Disease journal, or the latest on Preventing Chronic Diseases. You can even search CDC’s web content from the app. We'd love to hear your thoughts about the app! Rate the CDC Mobile App in the App Store or leave a comment to let us know how we're doing. You can even send us an email through the app if you have suggestions for improvements! DISCLAIMER THE MATERIALS EMBODIED IN THIS SOFTWARE ARE PROVIDED TO YOU "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESSED, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE CENTERS FOR DISEASE CONTROL AND PREVENTION (CDC) OR THE UNITED STATES (U.S.) GOVERNMENT BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD PARTIES, WHETHER OR NOT CDC OR THE U.S. GOVERNMENT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
Koiya
Immerse yourself in calming soundscapes and ambient environments for relaxation and better sleep. This app offers thoughtfully crafted audio experiences to help you unwind, reset, and establish a more peaceful nighttime routine.
- Calming soundscapes
- Ambient environments
- Soothing audio
- Nighttime routine support
- Decompression tools
- Peaceful atmosphere creation
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Koiya is an immersive audio experience designed for relaxation, decompression, and nighttime listening. Explore calming soundscapes, ambient environments, and soothing audio designed to help you unwind, reset, and create a more peaceful nighttime routine. Whether you’re settling in for sleep, taking a quiet moment to decompress, or simply creating a calming atmosphere throughout the day, Koiya offers thoughtfully crafted listening experiences intended to support rest and relaxation.
Screenshots
Verdict
The clearest difference is rating: Koiya at 5.0 against CDC's 2.9. CDC's advantage is ratings volume (413 vs 1). On price, ads, in-app purchases and monetization model 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.
Koiya holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: CDC has 413 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | CDC | Koiya |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (413 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 22.5% of reviews | — |
| Number of ratings | 413 — better | 1 |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 38 MB | 117 MB |
| Age rating | 12+ | 4+ |
| Developer | Centers For Disease Control and Prevention | Valerie Inman |
Customer experience
CDC
Koiya
Bugs and requests
CDC
Reported bugs
3 issues- Links within articles not working
- App freezing or not loading past the splash screen
- Symptom checker and other features not functioning properly
Requested features
4 requests- Improved contact tracing tools
- More up-to-date and comprehensive disease data
- Better integration with other health apps and platforms
- Landscape mode support for tablets
Koiya
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CDC
No in-app purchases
Koiya
No in-app purchases




