Comparison

Autogenic Drainage vs COSA

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

Head to head
About

Autogenic Drainage

This app guides users through autogenic drainage, a breathing technique to clear lung mucus. It features a customizable timer with voice commands and allows symptom tracking. Designed as an aid for individuals with lung conditions, it offers both default and personalized breathing sessions.

Highlights
  • Customizable breathing timer
  • Voice commands for breathing cues
  • Default and personalized sessions
  • Breath phase customization
  • Symptom tracking
  • Reference section
Features
Read full description

The Autogenic Drainage app provides a customizable timer with voice commands to aid in doing autogenic drainage. Autogenic drainage is a breathing exercise that is used to clear mucus from the lungs in people with lung disease. Autogenic drainage requires no equipment and is done entirely through controlling your breathing. This app contains a default autogenic drainage session that was customized by a person with cystic fibrosis and also contains a fully customizable session if the defaults do not work for you. You can customize the length of every inhale, exhale, time holding your breath, and total number of breaths in each phase of autogenic drainage. Hit start and voice commands tell you when to breathe in, hold, and breathe out. The timer also displays how long your session is, the current breath number, and how many breaths you have remaining. The app also contains a reference section. Track symptoms after each session or whenever you need to and recall them later for health professional consults and your own health planning. This app was designed to the specifications of a single person with cystic fibrosis and was developed as an aid in doing autogenic drainage for people with cystic fibrosis or perhaps other lung diseases. This app was not developed by doctors, respiratory therapists, or any other medical professional. This app is not intended to replace any existing medical treatment and should be only used as an aid to people already doing autogenic drainage or those eager to try it.

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

Autogenic Drainage4 screens
COSA4 screens

Verdict

The call

The clearest difference is in-app purchases: COSA at none against Autogenic Drainage's 2. Autogenic Drainage's advantage is ads (none vs shown) and update cadence (fortnightly vs every 3 months). On price, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Autogenic Drainage sells 2 one-off in-app purchases. COSA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Autogenic Drainage holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: Autogenic Drainage has 40 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Autogenic Drainage ships an update fortnightly, COSA every 3 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

Scorecard6 real differences · 4 level
Autogenic Drainage versus COSA: the parameters behind the verdict, then further details
ParameterAutogenic DrainageCOSA
PriceFreeFree
Rating3.9 (40 ratings) — better3.7 (3 ratings)
Positive reviews56.0% of reviews
Number of ratings40 — better3
Update frequencyFortnightly — betterEvery 3 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size30 MB28 MB
Age rating9+4+
DeveloperPolemics Applications LLCMEDICAL EDUCATION RESOURCES, LLC

Customer experience

Autogenic Drainage

All ratings40 ratings
Positive70.0%
Neutral5.0%
Negative25.0%
Written reviews25 reviews
Positive56.0%
Neutral8.0%
Negative36.0%

COSA

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

In-app purchases

2 purchases

Autogenic Drainage

One-time2
  • Dollar Tip$0.99
  • Five Dollar Tip$4.99
None

COSA

No in-app purchases

Questions

Is Autogenic Drainage free?
Autogenic Drainage is free to download, with in-app purchases available.
Is COSA free?
COSA is free to download, with no in-app purchases.
Which has better reviews, Autogenic Drainage or COSA?
Autogenic Drainage is rated higher. Autogenic Drainage averages 3.9 out of 5 from 40 ratings, while COSA averages 3.7 from 3 ratings.
Do Autogenic Drainage or COSA have ads?
COSA shows ads; Autogenic Drainage does not.
Which is updated more often, Autogenic Drainage or COSA?
Autogenic Drainage ships an update fortnightly, and COSA every 3 months. Most recently, Autogenic Drainage was updated on September 21, 2026 and COSA on September 10, 2026.

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