Preview
Description
Updated for the 2026 CCRN exam cycle — new question sets, refreshed rationales, and up-to-date exam tips keep your study plan current. Pass your CCRN Adult, Neonatal, and Pediatric exams with flying colors! Boost your confidence in passing the first time with our mobile app and a personal study plan based on your current skill and requirements. CCRN is a specialty certification for nurses who provide direct care to acutely/critically ill patients regardless of their physical location. Nurses interested in this certification may work in areas such as intensive care units, cardiac care units, combined ICU/CCUs, medical/surgical ICUs, trauma units, or critical care transport/flight. CCRN Key features: - Choose from different topics required to become a certified nurse - Practice with 1800+ questions - Track your strengths and weaknesses within Stats section of the app - Study detailed statistics of every test you take - Compare your score to the community average for almost any type of exam - - - - CCRN Purchases, subscriptions and terms You need to buy a lifetime access or subscribe to get access to all features, courses and questions. The cost of the purchase is charged to your iTunes account. Subscriptions are auto-renewable and are billed at the rate and period selected depending on the subscription plan. Users’ accounts are charged for auto-renewal within 24 hours prior to the end of the current period. Subscriptions can be managed and auto-renewal can be turned off in Account Settings in iTunes after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of use: https://mastrapi.com/terms Privacy policy: https://mastrapi.com/policy
What's New
Version 2.3.5 2025-12-26
• Fixed the timed test flow for unsubscribed users so the paywall shows instead of freezing • Updated CCRN prep content for the 2026 exam season • General stabi...• Fixed the timed test flow for unsubscribed users so the paywall shows instead of freezing • Updated CCRN prep content for the 2026 exam season • General stability improvements Version 2.3.3 2025-11-10
Improved Facebook attribution compatibility for iOS 18, updated SDK dependencies, and general stability polish. Version 2.3.2 2024-12-27
Content updates Version 2.3.1 2023-12-27
Content Updates Version 2.3.0 2022-09-22
Under the hood techie magic for a smoother UX Version 2.2.0 2022-09-09
Small UX improvements Version 2.1.0 2022-08-31
A question display bug fix. Be sure to update! Version 2.0.0 2022-08-15
A general update for a quicker question bank sync during the startup. Version 1.1.2 2022-06-09
The personal plan generator has been slightly updated according to the users' request. Version 1.1.1 2022-04-12
This version brings a much smoother UX even for old devices or when having a slow connection. App Store User Reviews
Cyrus Olson 2021-10-03
5/5!
Excited to announce that I have passed the CCRN exam! I have practiced 6 wks 8-12 hrs daily. The most difficult parts of the exam for me were memorizing the ven...Excited to announce that I have passed the CCRN exam! I have practiced 6 wks 8-12 hrs daily. The most difficult parts of the exam for me were memorizing the ventilator settings and pulmonary topics. This app covers everything and helps you to achieve the desired result!
prmarkjersey 2022-04-28
I really want it to work
I paid $99 for the lifetime fee. I’ve tried to reach out several times via email. No response. First the APP would not open off WIFI. No response. Then I kept r...I paid $99 for the lifetime fee. I’ve tried to reach out several times via email. No response. First the APP would not open off WIFI. No response. Then I kept reloading and now I get the same 20 questions for the past two weeks. The random questions are different but that is 40 questions. So in all only 65 questions in the ADULT CCRN for $99?. So. You just responded that you answer all responses if I use the contact us button on your APP. I have tried that several times already. I checked trash, junk and inbox. Nothing from your site. Hey. 4/27. I would like to thank you for getting back in touch with me several times and rectifying the situation. I really appreciate your app. I love that it gives you a rationale right away if you want it. 4/28. Okay here we go again…The questions are starting to repeat again. Same twenty questions as yesterday no wonder I got 100% Apparently the lifetime $99 purchase is not working correctly. I didn’t download off wi fi at first, then it did, now it keeps giving me the same questions.
/u/Diamondwolf 2022-08-29
Easy to use but hard to trust
App is simple and intuitive to use. It’s responsive and easy to read and answer questions. But the question bank seems small. I’ve gotten the same question twic...App is simple and intuitive to use. It’s responsive and easy to read and answer questions. But the question bank seems small. I’ve gotten the same question twice in a 20 question quiz. Twice now I’ve had the ‘daily question’ be wrong because the task was to interpret an ABG and to differentiate between partially compensated and uncompensated but the question only contained a pH and a CO2. The rationale told me to look at the HCO3 that of course wasn’t listed in the question. Am I meant to calculate the HCO3 from the other two numbers myself? If so, put that in the rationale.
n scho 2022-03-01
Great app for studying but be careful
Great content, however it seems that for a good deal of questions the wrong answer is marked as correct. For instance in a question about HHS vs DKA I selected...Great content, however it seems that for a good deal of questions the wrong answer is marked as correct. For instance in a question about HHS vs DKA I selected the answer saying the difference is that there is no ketogenesis in HHS. It then told me I selected the wrong answer and that the difference was that HHS was due to a “total lack of insulin”. The rationale that then was given at the bottom told me that my answer was right. Seems to happen 1/15 times when I get a wrong answer that I actually had it right, but the app has the wrong answer marked as correct.
dhjbcfjnn 2021-09-22
Spends over an hour for app to open
I've only had this app 2 days. It has only fully opened once (and yes I have the paid version). It takes so long to load that at first I thought my phone was fr...I've only had this app 2 days. It has only fully opened once (and yes I have the paid version). It takes so long to load that at first I thought my phone was frozen. Tried using wifi. Tried using cellular data. It doesn't make any difference. I've actually been trying to get the app to open today for the past hour. Still nothing. The one time itdid open, it seemed great. But it would be nice if it actually worked even just a little bit faster. I mean dial up internet wasn't this slow.
Harr3 2025-10-14
Not the app to get
I hoped this app would have a lot of questions to really hone in the CCRN knowledge. What I got instead was an app that repeated questions and overly explained ...I hoped this app would have a lot of questions to really hone in the CCRN knowledge. What I got instead was an app that repeated questions and overly explained basics concepts. Why should a CCRN question say “rhabdomyolysis also known as “rhabdo” can cause high potassium or hyperkalemia”? If someone is taking this exam they are well aware of this information. Another question had Cushing’s disease and cortisol in the question but the answers all pertained to Cushing’s Triad. What’s even worse is you can’t even report a question for review. I wish I could get my money back.
SquishedBean 2026-02-25
Simple but helpful app
Overall it’s a nice app, but I wish there was a better way to focus on certain pieces of the exam. Let’s say you wanted to work on cardiac questions, you could ...Overall it’s a nice app, but I wish there was a better way to focus on certain pieces of the exam. Let’s say you wanted to work on cardiac questions, you could select cardiac modules and go from there. It’s all just one BIG or little set of questions and you hope to get some cardiac questions mixed in.
Nickname #77 2023-02-12
Questionable Quality
App is easy to use, but the content is of questionable quality. Many questions are poorly worded, or incomplete. Others are flat out false, so I recommend you s...App is easy to use, but the content is of questionable quality. Many questions are poorly worded, or incomplete. Others are flat out false, so I recommend you spend your money on a higher quality product than to purchase this app. I’ve reported many questions, but they never respond. They just want your money.
Bino_Hikko 2021-10-16
Passed AACN CCRN (Adult)!
Very advanced preparation tool, which covers all exam topics. Thank you for adding many I-C questions (endocrine/hematology/gastrointestinal/ renal/integumentar...Very advanced preparation tool, which covers all exam topics. Thank you for adding many I-C questions (endocrine/hematology/gastrointestinal/ renal/integumentary)! I tried monthly subscription first then turned to lifetime access.
Angelikamarie 2023-01-21
I think I got a dud of a subscription
I’m paying money for a subscription to an app that doesn’t work. I get the same three questions every time I open the app, and when I try to do anything else it...I’m paying money for a subscription to an app that doesn’t work. I get the same three questions every time I open the app, and when I try to do anything else it freezes the app. It’s garbage, I’m cancelling and hope I can request a refund for what I’ve paid.
Technical Analysis
Package Overview Basic metadata
Bundle ID
exam.ccrn Current Version 2.3.5
Minimum iOS 13.0
Package Size App Store Size
Package Metadata 1 / 20 version records
Detailed binary, privacy manifest, framework, and Info.plist results have not been indexed for this package yet. The verified App Store and archive metadata above remains available.
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Known Version Records
1 version record with stored package metadata • 20 known version records
Stored metadata does not guarantee a package is currently available to download.
| Details | Version / IDs | Version date | Action |
|---|---|---|---|
| 35.76 MB | v2.3.5 App Store ID: 879653230Build: 2.3.5 | 2025-12-26 18:16:25 | Get Version |
| Not archived | v2.3.3 App Store ID: 879611041Build: 2.3.3 | 2025-11-10 21:05:21 | Request Version |
| Not archived | v2.3.2 App Store ID: 870345338Build: 2.3.2 | 2024-12-27 21:58:01 | Request Version |
| Not archived | v2.3.1 App Store ID: 862054034Build: 2.3.1 | 2023-12-27 17:20:28 | Request Version |
| Not archived | v2.3.0 App Store ID: 852324855Build: 2.3.0 | 2022-09-22 17:22:12 | Request Version |
| Not archived | v2.2.0 App Store ID: 852112748Build: 2.2.0 | 2022-09-09 18:21:52 | Request Version |
| Not archived | v2.1.0 App Store ID: 851940007Build: 2.1.0 | 2022-08-31 21:32:11 | Request Version |
| Not archived | v2.0.0 App Store ID: 851330431Build: 2.0.0 | 2022-08-15 08:25:47 | Request Version |
| Not archived | v1.1.2 App Store ID: 849521418Build: 1.1.2 | 2022-06-09 05:26:38 | Request Version |
| Not archived | v1.1.1 App Store ID: 848301072Build: 1.1.1 | 2022-04-12 23:05:29 | Request Version |
| Not archived | v1.0.12 App Store ID: 848153876Build: 1.0.12 | 2022-04-06 21:54:43 | Request Version |
| Not archived | v1.0.11 App Store ID: 847777782Build: 1.0.11 | 2022-03-21 07:31:52 | Request Version |
| Not archived | v1.0.9 App Store ID: 847705894Build: 1.0.9 | 2022-03-15 17:44:58 | Request Version |
| Not archived | v1.0.8 App Store ID: 844558417Build: 1.0.8 | 2022-02-25 22:08:57 | Request Version |
| Not archived | v1.0.7 App Store ID: 844245683Build: 1.0.7 | 2021-09-27 12:21:22 | Request Version |
| Not archived | v1.0.6 App Store ID: 844209984Build: 1.0.6 | 2021-09-21 16:35:07 | Request Version |
| Not archived | v1.0.5 App Store ID: 843865995Build: 1.0.5 | 2021-09-15 15:25:52 | Request Version |
| Not archived | v1.0.3 App Store ID: 843670597Build: 1.0.3 | 2021-08-30 19:16:37 | Request Version |
| Not archived | v1.0.2 App Store ID: 843541528Build: 1.0.2 | 2021-08-11 17:32:08 | Request Version |
| Not archived | v1.0 App Store ID: 842387664Build: 1.0 | 2021-06-12 00:58:38 | Request Version |