Contraception vs Diagnosaurus® DDx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contraception
This app provides comprehensive guidelines on contraceptive method use based on medical eligibility criteria and selected practice recommendations. It assists healthcare providers in counseling individuals and couples on family planning choices, covering over 60 medical conditions and numerous clinical situations.
- U.S. Medical Eligibility Criteria (MEC)
- U.S. Selected Practice Recommendations (SPR)
- Covers over 60 characteristics/conditions
- Addresses numerous clinical situations
- Aids healthcare provider counseling
- Based on CDC Morbidity and Mortality Weekly Report
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The U.S. Medical Eligibility Criteria for Contraceptive Use comprises recommendations for the use of specific contraceptive methods by patients who have certain characteristics or medical conditions. The U.S. Selected Practice Recommendations for Contraceptive Use addresses a select group of common, yet sometimes controversial or complex, issues regarding initiation and use of specific contraceptive methods. The app is developed directly from the CDC Morbidity and Mortality Weekly Report (MMWR) by the Division of Reproductive Health and covers more than 60 characteristics or medical conditions (U.S. MEC) and numerous clinical situations (U.S. SPR). These recommendations are intended to assist healthcare providers when they counsel women, men, and couples about contraceptive method choice and use. Although these recommendations are meant to serve as a source or clinical guidance, healthcare providers should always consider the individual clinical circumstances of each person seeking family planning services.
Diagnosaurus® DDx
This medical reference tool assists healthcare professionals in performing differential diagnoses quickly and confidently. It offers a searchable database of over 1,000 diagnoses, cross-referenced for related conditions, and allows users to save favorite entries and make custom notes.
- Over 1,000 differential diagnoses
- Search by organ system, symptom, or disease
- See Related DDx feature
- Save favorite entries
- Highlight and make custom notes
- Universal Index Search
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** Top-Selling App Used by Tens of Thousands of Health Professionals, Worldwide ** ABOUT DIAGNOSAURUS DDX This quick-reference tool helps healthcare professionals perform differential diagnosis with speed and confidence at the point of care. With Diagnosaurus you can quickly search over 1,000 diagnoses by organ system, symptom, or disease, or you can view all entries. Use the valuable “See Related DDx” feature within each entry to consider alternative diagnoses and quickly link to those entries. The convenient “Favorites” feature allows you to save specific searches and bookmark in your personal archive. FEATURES • More than 1,000 differential diagnoses • Highlight and make custom notes within entries • Entries organized in quick-read format • “See Related DDx” links to other potential diagnoses • Disease, symptom, and organ system indexes • “Favorites” for bookmarking important entries • Universal Index Search to help find answers fast Author: Roni F. Zeiger, MD Publisher: McGraw-Hill Medical Powered by: Unbound Medicine
Screenshots
Verdict
The clearest difference is rating: Diagnosaurus® DDx at 4.8 against Contraception's 4.3. Diagnosaurus® DDx also leads on ratings volume (2.5K vs 27) and device support (4 vs 2). Contraception's advantage is in-app purchases (none vs 1) and review sentiment (64% vs 53%). On price, update cadence, ads and iOS requirement 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. Diagnosaurus® DDx sells 1 one-off in-app purchase. Contraception asks for nothing beyond the download.
Diagnosaurus® DDx holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Diagnosaurus® DDx has 2.5K ratings behind it against 27, so its average is the more settled of the two. Written reviews complicate that: 64% of Contraception's written reviews are positive against 53% of Diagnosaurus® DDx's, so the app with the better star average is not the one people write more warmly about.
Contraception ships an update every 7 months, Diagnosaurus® DDx every 10 months. The most recent releases landed on October 17, 2026 and October 20, 2026 respectively.
| Parameter | Contraception | Diagnosaurus® DDx |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (27 ratings) | 4.8 (2.5K ratings) — better |
| Positive reviews | 63.6% of reviews — better | 53.2% of reviews |
| Number of ratings | 27 | 2.5K — better |
| Update frequency | Every 7 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 56 MB | 19 MB |
| Age rating | 12+ | 17+ |
| Developer | Centers For Disease Control and Prevention | Unbound Medicine, Inc. |
Customer experience
Contraception
Diagnosaurus® DDx
Bugs and requests
Contraception
Not enough reviews yet to summarise bugs or requests.
Diagnosaurus® DDx
Reported bugs
3 issues- Subscription issues and inability to restore purchases
- Blank pages and non-functional content
- Compatibility issues with newer iOS versions
Requested features
5 requests- Add ability to edit or add custom differential diagnoses
- Improve search functionality and navigation
- Provide more detailed information on conditions
- Integrate with other medical resources and databases
- Improve support for older devices and iOS versions
In-app purchases
Contraception
No in-app purchases
Diagnosaurus® DDx
- Diagnosaurus DDx$4.99
Questions
Is Contraception free?
Is Diagnosaurus® DDx free?
Which has better reviews, Contraception or Diagnosaurus® DDx?
Do Contraception or Diagnosaurus® DDx have ads?
Which is updated more often, Contraception or Diagnosaurus® DDx?
Other comparisons
