Comparison

cTrials vs 911sms

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

cTrials

This app provides a mobile interface for searching clinical trials listed on clinicaltrials.gov. It offers user-friendly navigation with basic, advanced, and country-specific search options. Users can save trials to favorites, email listings, and contact investigators.

Highlights
  • Clinical trial search
  • Basic and advanced search options
  • Search by country/state
  • Save trials to favorites
  • Email trial listings
  • Contact investigators
  • Search history
Read full description

• A mobile front end for searching clinical trials listed on www.clinicaltrials.gov by National Library of Medicine  (NLM/NIH) • All of the features of www.clinicaltrials.gov website are incorporated in this app.  • Incorporates user friendly navigation schemes with Basic, Advanced, Refine  Search and Search by Country /State features • Predictive Text feature for Basic Search screen • Customizable individual personal profile feature • Empowers the end users to save a clinical trial listing to favorites folder, e-mail the clinical trial, contact an investigator • Save the ‘Search History’ and many more… • Attach a personal profile with voice memo to an Clinical Study Investigator via e-mail • Contact a Clinical Study Investigator  through the app

About

911sms

Features
Read full description

911-sms is the fastest and easiest way to call 911. 911-sms will revolutionize the way people call or text their 911 call centers. No more dialing numbers, just a click of a button and our program will auto-dial 911 for you, saving time and possibly your life. In addition, we have included a new button called 911sms™ When a medical emergency occurs, it is essential to reach a 911 operator as quickly as possible. During an emergency every minute can be the difference in life or death, especially for an elderly person living alone, or a child with special needs. 911sms™ allows you the option of clicking the Yes button to be immediately connected to the 911 call center, or you can click the 911sms™ button. This will allow you the ability to send your name, age, mobile number, medical history and [GPS location] –as a sms text message. 911sms™ — World's Fastest 911 Dialing Mobile App. Designed Specifically for Elderly People and children with special needs — (Optional) Send your medical history and information as a SMS text message to the 911 operator * if supported Including: * SMS notification to your emergency contacts with —Date-time-stamp and GPS location * Easy input of Medical History information Add, Edit, View * List serious medical condition —like being Diabetic * Emergency medical history can be forwarded from the 911 operators, to first responders, a paramedic, ambulance or hospital prior to arrival * when supported Why is this important to you and your family? All doctors agree that everyone should carry your emergency medical history with you at all times. This is especially true for the elderly and people with serious medical conditions. For this reason, we have created a simple and secure way for you to carry and make available, to a medical professional: your medical history, emergency contacts that are saved in your mobile phone. When the E911 service is fully implemented you will have two options, 1) To click the 'Yes' emergency button which will auto-dial to the 911 operator (voice). Or 2) Click the 911sms™ button, that will allow you the ability to send your name, age, mobile number, emergency contacts, medical history and [GPS location] –as a SMS text message. Important !! All medical history data is at your discretion… this is a totally opt in solution. You can enter as much information, or as little as you wish. None of your medical history is saved in a database or the cloud….only in your mobile phone. Only you, with a password, can add, edit or view any of the information saved in your 911sms™ mobile app. We do not store or have access to any of the information that you save, including your password. · LifeGuard Global Inc. does not claim, warrant or guarantee that all features contained in our mobile app will work, in your mobile phone or is supported by your service provider. We claim no responsibility, liability, injury or death in this matter.

Screenshots

cTrials4 screens
911sms4 screens

Verdict

The call

The clearest difference is iOS requirement: cTrials at 11.1 against 911sms's 15.6. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

cTrials ships an update every 12 months, 911sms every 11 months. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 9 level
cTrials versus 911sms: the parameters behind the verdict, then further details
ParametercTrials911sms
PriceFreeFree
Rating3.0 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 12 monthsEvery 11 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.1 — better15.6
Further details — not scored
Size12 MB21 MB
Age rating4+12+
DeveloperVisual Soft Inc.LifeGuard Global Inc.

In-app purchases

None

cTrials

No in-app purchases

None

911sms

No in-app purchases

Questions

Is cTrials free?
cTrials is free to download, with no in-app purchases.
Is 911sms free?
911sms is free to download, with no in-app purchases.
Do cTrials or 911sms have ads?
Neither cTrials nor 911sms shows ads.
Which is updated more often, cTrials or 911sms?
cTrials ships an update every 12 months, and 911sms every 11 months. Most recently, cTrials was updated on October 9, 2026 and 911sms on October 14, 2026.

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