Comparison

AHRQuestionBuilder vs COSA

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

Head to head
About

AHRQuestionBuilder

This app helps patients prepare for medical appointments by organizing visit details, symptoms, and questions. It allows customization of queries and saves time for both patients and healthcare providers. Users can also add appointments to their calendar and email details.

Highlights
  • Organize appointment details
  • Customize questions for doctors
  • Describe symptoms and concerns
  • Add appointments to e-calendar
  • Email appointment details
Features
Read full description

The Question Builder helps patients prepare for medical visits so they get the most from their appointments. Users enter details such as date, healthcare provider, and reason for the visit. Next, they can choose or customize questions they want to ask at their appointment. Users are prompted to describe their symptoms and concerns in ways that will save time for both themselves and their medical providers. Users can add appointment information to their e-calendar and send details to their personal email account. For more information about Question Builder, please visit https://www.ahrq.gov/patients-consumers/patient-involvement/ask-your-doctor/index.html

About

COSA

Access essential drug information and advanced patient resources. This app provides a portion of licensed drug data from a leading healthcare information provider, based on industry-standard databases.

Highlights
  • Essential drug information
  • Advanced patient resources
  • Licensed drug data
  • Industry-standard databases
  • Physician-focused resources
Features
Read full description

Find essential drug information & advanced patient resources. Physicians Office Resource licenses drug information data from First DataBank and provides a portion of it as a free service to its physician-users. First DataBank is the leading provider of electronic drug information to the healthcare industry. Based on the widely accepted industry standard — the National Drug Data File® — NDDF Plus databases are backed by the most clinically verifiable evidence gathered to date.

Screenshots

AHRQuestionBuilder4 screens
COSA4 screens

Verdict

The call

The clearest difference is ads: AHRQuestionBuilder at none against COSA's shown. AHRQuestionBuilder also leads on rating (4.0 vs 3.7) and monetization model (free vs ad-supported). COSA's advantage is update cadence (every 3 months vs every 13 months) and iOS requirement (11.0 vs 14.0). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

AHRQuestionBuilder holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

UpkeepUpdate frequency

AHRQuestionBuilder ships an update every 13 months, COSA every 3 months. The most recent releases landed on September 3, 2026 and September 10, 2026 respectively.

Scorecard5 real differences · 5 level
AHRQuestionBuilder versus COSA: the parameters behind the verdict, then further details
ParameterAHRQuestionBuilderCOSA
PriceFreeFree
Rating4.0 (8 ratings) — better3.7 (3 ratings)
Positive reviews60.0% of reviews—
Number of ratings8 — better3
Update frequencyEvery 13 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size23 MB28 MB
Age rating4+4+
DeveloperAHRQMEDICAL EDUCATION RESOURCES, LLC

Customer experience

AHRQuestionBuilder

All ratings8 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

COSA

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

AHRQuestionBuilder

No in-app purchases

None

COSA

No in-app purchases

Questions

Is AHRQuestionBuilder free?
AHRQuestionBuilder is free to download, with no in-app purchases.
Is COSA free?
COSA is free to download, with no in-app purchases.
Which has better reviews, AHRQuestionBuilder or COSA?
AHRQuestionBuilder is rated higher. AHRQuestionBuilder averages 4.0 out of 5 from 8 ratings, while COSA averages 3.7 from 3 ratings.
Do AHRQuestionBuilder or COSA have ads?
COSA shows ads; AHRQuestionBuilder does not.
Which is updated more often, AHRQuestionBuilder or COSA?
AHRQuestionBuilder ships an update every 13 months, and COSA every 3 months. Most recently, AHRQuestionBuilder was updated on September 3, 2026 and COSA on September 10, 2026.

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