PreMedicus® ER vs OB Emergencies
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PreMedicus® ER
This digital health assistant guides you through symptom assessment with everyday language, providing potential diagnoses and personalized advice. It generates detailed medical reports for your doctor and offers GPS directions to nearby healthcare providers.
- Symptom assessment in everyday language
- Personalized advice and potential diagnoses
- Generates medical and non-medical reports
- GPS guidance to healthcare providers
- Secure HIPAA-compliant data storage
- Two-factor authentication
Read full descriptionHide full description
When you are sick, PreMedicus® ER is an easy to use mobile app that asks you a few questions in everyday language so that it can automatically give you a good idea of what may be wrong and personalized advice about what to do next. The app is hospital tested, and the diagnosis is much more accurate because you provide background information about your health. The app allows you to learn more about the possible condition, and provides GPS guidance to the right type of care provider if you decide to seek help from a doctor. To save time and reduce mistakes, the app creates an Illness Report using medical terms that you can email to your doctor. You can also share a non-medical version of the report with people close to you. All your reports are stored on your mobile device. The PreMedicus® ER mobile app uses two factor authentication for login, transmits your medical information in code, and stores it in a highly secure HIPAA server in the Amazon Web Services Cloud. We do not sell or share your personal information with anyone. Your location is requested to help GPS guide you to the appropriate health provider or facility. Please remember to seek a doctor’s advice in addition to using this app and before making any medical decisions.
OB Emergencies
This app provides healthcare providers in Labor and Delivery with checklists for obstetric emergencies. It includes essential information, lab dropdowns, and actionable items, along with a phone book for critical institutional contacts. Designed for clinical use, it supports informed decision-making during urgent situations.
- Obstetric emergency checklists
- Institutional phone book
- Lab dropdowns
- Actionable item guidance
- How-to guide
- References for checklists
Read full descriptionHide full description
OB Emergencies is a free checklist app for healthcare providers in Labor and Deliver based on the DHA Obstetric Emergencies Bundle. The app contains all checklist items, dropdown boxes for labs, important items to consider, and action items. Additionally, users can add institutional phone numbers to access from within the app to include Blood Bank, Massive Transfusion Protocol, calling Code Purples or Code Blues, and more. While the information contained is based on the DHA OB Emergencies Bundle, the information is based on clinical recommendations, and the app can be used by any healthcare provider in an obstetric setting. Features: ~ Checklists for common and rare obstetric emergencies ~ Phone book to allow users to save institution-specific helpful phone numbers that allows users to call important numbers from within the app ~ How-To guide for using all the features of the app ~ References for each checklist Disclaimer: OB Emergencies is meant to be used for informational purposes only and is intended to be used by licensed healthcare providers. The information contained within does not replace clinical judgement. If you are a patient, the information contained within is not meant to replace medical advice from a licensed physician.
Screenshots
Verdict
The clearest difference is price: OB Emergencies at Free against PreMedicus® ER's $4.99. OB Emergencies also leads on update cadence (monthly vs every 45 months) and ratings volume (6 vs 1). PreMedicus® ER's advantage is iOS requirement (13.0 vs 15.0.0). On rating, 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
OB Emergencies is free to download; PreMedicus® ER costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for PreMedicus® ER against 5.0 for OB Emergencies. That said, the two scores are not equally well evidenced: OB Emergencies has 6 ratings behind it against 1, so its average is the more settled of the two.
PreMedicus® ER ships an update every 45 months, OB Emergencies monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | PreMedicus® ER | OB Emergencies |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (6 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 45 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0.0 |
| Further details — not scored | ||
| Size | 68 MB | 47 MB |
| Age rating | 17+ | 17+ |
| Developer | PreMedicus LLC | Complete Medicine, LLC |
Customer experience
PreMedicus® ER
OB Emergencies
In-app purchases
PreMedicus® ER
No in-app purchases
OB Emergencies
No in-app purchases









