Comparison

Code Blue Sentry vs Flatliner

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

Head to head
About

Code Blue Sentry

This app helps medical professionals track medications and critical events. It offers customizable ACLS navigation, including checklists and RSI protocols. A free trial is available to assess its utility for pharmacists, registered nurses, and potentially other providers.

Highlights
  • Medication tracking
  • Event logging
  • Customizable ACLS navigation
  • Checklists
  • RSI protocols
  • Hs/Ts tracking
Features
Read full description

There are several other code blue apps and you're wondering which one to pick so I'll just cut straight to the chase. You want a simple, intuitive, and customizable app to help you track medications and events. You don't want a bunch of other tools that you'll never use and that will clutter your screen (and if you did there would be a whole separate section for that, which needs to be enabled) If you're a pharmacist or registered nurse in charge of tracking medications, then I think you'll find this app very useful. If you're a provider (MD, DO, ARNP, etc) or paramedic MAYBE you might find some use out of this. I've built this app in a way to allow for customizable ACLS navigation (checklists, RSI, Hs/Ts). Please use the 30-day trial to see if it meets your needs and if it doesn't let me know how I can improve it. The app is dirt cheap. It's $0.99 every 3 months. That's less than the price of a cup of coffee every year. The only reason I'm really charging for it in the first place is because it cost money to keep apps on the Appstore and I don't want to run ads on something like this. Please try it out and leave a review. Thanks, Brian Mun, PharmD codebluetracker@gmail.com Terms of Use EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Flatliner

This app allows medical professionals to meticulously log critical interventions during CPR events in real time. It generates organized summaries for immediate review and professional documentation, aiding in efficient patient care.

Highlights
  • Real-time CPR event logging
  • CPR code and compression timers
  • Medication, rhythm, and shock tracking
  • Epinephrine and pulse check reminders
  • Chest compression fraction calculator
  • Built-in metronome
  • Clean CPR summaries
Features
Read full description

Flatliner: CPR / Code blue / ACLS/ ALS recorder Flatliner is a comprehensive CPR recording and documentation app built for emergency physicians, nurses, and paramedics. Track critical interventions in real time and generate professional documentation — instantly. During a code, Flatliner helps you record compressions, medications, rhythms, shocks, pulse checks, interventions, and important timestamps without slowing you down. When the code ends, Flatliner can generate an organized CPR summary that you can review, edit, and use for documentation. Key features: • Real-time CPR event logging • CPR code timer and compression timer • Medication, rhythm, shock, and intervention tracking • Epinephrine and pulse check reminders • Dedicated chest compression fraction calculator • Built-in metronome for compression pacing • Clean CPR summaries for documentation • Light and dark mode

Screenshots

Code Blue Sentry4 screens
Flatliner4 screens

Verdict

The call

The clearest difference is monetization model: Flatliner at free with in-app purchases against Code Blue Sentry's subscription. On price, rating, ratings volume and update cadence 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. Code Blue Sentry sells 3 in-app purchases, starting at $0.99 per 3 months and Flatliner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Code Blue Sentry against 5.0 for Flatliner. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Code Blue Sentry ships an update every 3 weeks, Flatliner monthly. Both last shipped on September 13, 2026.

Scorecard1 real difference · 9 level
Code Blue Sentry versus Flatliner: the parameters behind the verdict, then further details
ParameterCode Blue SentryFlatliner
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size41 MB46 MB
Age rating17+17+
DeveloperBrian MunFaisal Baabbad

Customer experience

Code Blue Sentry

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Flatliner

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Code Blue Sentry

Subscriptions2
  • Subscription1 Month trial$0.993 Months
  • Subscribe1 Month trial$0.993 Months
One-time1
  • Donate2 variants$4.99
1 purchases

Flatliner

One-time1
  • Flatliner Pro Unlock$4.99

Questions

Is Code Blue Sentry free?
Code Blue Sentry is free to download, with in-app purchases available.
Is Flatliner free?
Flatliner is free to download, with in-app purchases available.
Which has better reviews, Code Blue Sentry or Flatliner?
Code Blue Sentry and Flatliner are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Code Blue Sentry or Flatliner have ads?
Neither Code Blue Sentry nor Flatliner shows ads.
Which is updated more often, Code Blue Sentry or Flatliner?
Code Blue Sentry ships an update every 3 weeks, and Flatliner monthly. Most recently, Code Blue Sentry was updated on September 13, 2026 and Flatliner on September 13, 2026.

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