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CPR Tempo

Frozen Ape Pte. Ltd. · Medical · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card
Revenue a month, worldwide
Too small to estimate
Not enough chart or ratings data
New ratings
Tracking
Daily counts start building from today
Rating
3.7 of 5
79 ratings in this store
Countries it ranks in
0
was 0 on Oct 19, 2026

Revenue

Estimated from the grossing charts of Oct 26, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / MONTH · WORLDWIDE
Unranked
Not in any grossing chart, and it sells nothing in the store (no in-app purchases, free download). Any revenue comes from ads or payments outside the store, which we can't see.
EST. LIFETIME DOWNLOADS
2.8K to 7.9K
Estimated from ratings count
RATINGS
79
AVG RATING
3.71
PRICE
Free
AGE
14.1y
LAST UPDATE
3246d ago
VERSION
1.2
SIZE
11 MB
AGE RATING
17+

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
0 / 30
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · APP STORE ONLY EST
Show daily values
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Best rank Sep 27, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
0.1 reviews / week
  • Trendfalling
  • Recent reviews average3.5 stars
  • Recent 1 and 2 star share32%
From the latest 37 written reviews, covering 4843 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases1636 days
From the last 3 versions listed on the App Store.
RATING BREAKDOWN
79 ratings
5★51%
4★16%
3★6%
2★6%
1★20%

What users want

From the latest 37 reviews on the United States App Store, Jul 23, 2013 to Sep 29, 2026: 32% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Worse after an update25%

3 of the 1 and 2 star reviews.

★★★★★ Sounds terrible needs to be updated.
★★★★★ The latest update has caused a static sound with the metronome that is terrible.
★★★★★ Please update your app so it can be used with iPhone update iOS 11.
WHAT THEY ASK FOR
  • Every EMT should have this app installed in case you need it. 5★, Oct 24, 2025
  • My only dislike is I wish it kept track of how long each person was actively doing compressions. 4★, Jan 25, 2021
  • Please add the watch app. 5★, Feb 7, 2019
  • Cut the "Defibrillator" and "Epinephrine" buttons in half and slightly reduce the size of the heart so you can add a few more buttons: 1. 5★, Nov 2, 2016
  • Just please add an amiodarone button to the next version. 4★, Jul 8, 2016
  • I agree with previous reviews, the next versions should include ventilation tones. 3★, May 22, 2014
  • In the options, add the choices for a tone every 3 to 5 seconds for pediatric rescue breathing with a basic airway adjunct. 3★, May 22, 2014
  • Could you guys add an every 6 second ventilation tone to let the bagger know when to squeeze!? 5★, May 14, 2014
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Useful, it helps22%

5 of the 4 and 5 star reviews.

★★★★★ ive been a recorder multiple times and i work at cardiac floor, this helps us keep track of next due pulse checks and epis.
★★★★★ Great just for keeping tempo, but doesn't actually keep count of your cycles or tell you when to do breaths. It would be excellent if that feature could be added. One of the most difficult parts of CPR is keeping count…
★★★★★ The lay out is crazy simple, setting a default metronome compression rate is great and the secondary ques for rhythm checks and epinephrine are also helpful.
Easy to use13%

3 of the 4 and 5 star reviews.

★★★★★ This is hard during the chaos of a code, writing multiple times and notes on a gloved hand is all you got and not easy.
★★★★★ I love how simplistic and easy to use it is with easy big buttons to push.
★★★★★ The lay out is crazy simple, setting a default metronome compression rate is great and the secondary ques for rhythm checks and epinephrine are also helpful.
Accurate, great results9%

2 of the 4 and 5 star reviews.

★★★★★ While there are devices that provide feedback of CPR quality, this app would do in the absence of those gadgets.
Fast9%

2 of the 4 and 5 star reviews.

★★★★★ It's amazing how fast CPR is being done when compared to when you activate the metronome!
★★★★★ Too often people do chest compression too fast, sometimes with compression rate up to 150 in many of the codes I have seen.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States App Store.

★★★★★Sep 29, 2026
Terrible sounding

Sounds terrible needs to be updated. The extra sound makes it sound like the app is messed up.

★★★★★Aug 25, 2026
Good Idea, poor quality

A simple app that can be configured to operate at the push of a single button in an emergency is a good idea. Unfortunately, the beep cannot be adjusted, and when the app is launched a second time, the sound is distorted and comes out with a crackling noise. Special features are secondary, but a clock and a counter for delivered shocks and reanimation cycles would be helpful.

★★★★★Jan 23, 2026
Weird sound

I used to love this app but now it has a weird scratchy noise after every beat. It has become a distraction so I’ve quit using it on codes. I’ve tried updating. It has happened on two devices. Otherwise it was a great app

★★★★★Oct 24, 2025
Amazing!!

Every EMT should have this app installed in case you need it. Just used it last night on a code. Really helped the crew..

★★★★★Jul 25, 2025
Amateurish

Every metronome chirp is followed by a burst of static. The defibrillator/rhythm check button isn’t logically named as each check doesn’t prompt a shock. Neither the rhythm check nor epinephrine counters provide an audible signal.

★★★★★Jul 10, 2025
Falling quality

Have you used this for years and it has been fantastic. However now there is a terrible noise with the metronome I’m unable to fix, and every other user I know has the same issues.

Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

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Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

audio cues5audio4cues4rhythm checks3epinephrine administration3american heart3heart association3compressions per3per minute3frozen ape3timer visual3visual audio3resuscitation event3cpr3visual3compressions3resuscitation3epinephrine3event3tempo2during2rhythm2checks2administration2

What's new in 1.2

Updated to run on latest OS and devices.

Released Sep 25, 2012. Current version shipped Dec 6, 2017.

Store description

CPR Tempo provides audio and visual cues to aid the timing of chest compressions during cardiopulmonary resuscitation (CPR). Timers are also provided for rhythm checks after defibrillator shocking and for epinephrine administration. The American Heart Association recommends a rate of 100 compressions per minute during CPR. This is difficult to maintain without audio cues, especially as the rescuer tires. ER nurse and Army Reservist MAJ Don Kyle shared with Frozen Ape about our metronome app Tempo is being used for this purpose. We have since worked with Don to create a specialised app, including the following bonus features: - Timer with visual and audio cues for rhythm checks - Timer with visual and audio cues for Epinephrine administration - Log of each resuscitation event detailing each action taken and location of event (location services required) - Configurable CPM (compressions per minute) from 100 to 120 - Configurable epinephrine interval from 3 to 5 minutes Disclaimer: This app follows standards recommended by the American Heart Association. Do not use this app if these standards do not align with your medical practice. Please familiarize yourself with this app, including the tutorial, and verify the settings before using the app in an actual resuscitation event. Frozen Ape Pte. Ltd. is not liable for mishaps due to the misuse of, or malfunctioning of the app.

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