CPR Tempo vs Trust
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CPR Tempo
This application provides audio and visual cues to help maintain the correct timing for chest compressions during CPR. It also includes timers for rhythm checks and medication administration, along with event logging capabilities.
- Audio and visual CPR compression timing cues
- Rhythm check timer
- Epinephrine administration timer
- Resuscitation event logging
- Configurable compressions per minute (100-120)
- Configurable epinephrine interval (3-5 minutes)
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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.
Trust
This app helps healthcare professionals securely store and manage all their professional credentials, including licenses and certifications. It provides timely expiry alerts to prevent lapses and allows easy sharing of documents with employers, ensuring you're always prepared to work.
- Securely store licenses and certifications
- Set expiry alerts for credentials
- View credential status at a glance
- Export and share credentials
- Track multiple credential types
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The free credential wallet for nurses and EMTs. Keep your licenses, BLS, ACLS, PALS, and NREMT credentials securely on your device, protected by Face ID or Touch ID. Get reminders 90, 60, 30, and 7 days before expiration, so nothing lapses. Add a license or card in about 30 seconds. Set your own expiry alerts. Export a PDF when a facility or agency asks. No account required. We never see what’s inside. What you can store • State RN, LPN, and compact (NLC) licenses • EMT, paramedic, and NREMT cards • BLS, ACLS, PALS, and other AHA cards • Specialty certs (CCRN and the rest of the stack) Built for the people who actually reviewed it: “licenses and other documents,” “notifications before they expire,” “export a PDF.” Not a quiz app. Not an employer dashboard. Free. No in-app purchases. On-device. Face ID. Need the renewal rules for your board? Find guides and a compact renewal checker at https://gettrustapp.com/renew
Screenshots
Verdict
The clearest difference is rating: Trust at 4.8 against CPR Tempo's 3.7. Trust also leads on update cadence (every 2 months vs every 32 months) and review sentiment (83% vs 61%). CPR Tempo's advantage is iOS requirement (8.2 vs 26.0). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Trust holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Trust has 706 ratings behind it against 79, so its average is the more settled of the two. Written reviews point the same way: 61% of CPR Tempo's written reviews are positive against 83% of Trust's.
CPR Tempo ships an update every 32 months, Trust every 2 months. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.
| Parameter | CPR Tempo | Trust |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (79 ratings) | 4.8 (706 ratings) — better |
| Positive reviews | 60.5% of reviews | 83.0% of reviews — better |
| Number of ratings | 79 | 706 — better |
| Update frequency | Every 32 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.2 — better | 26.0 |
| Further details — not scored | ||
| Size | 11 MB | 39 MB |
| Age rating | 17+ | 17+ |
| Developer | Frozen Ape Pte. Ltd. | VectorCare Inc. |
Customer experience
CPR Tempo
Trust
Bugs and requests
CPR Tempo
Reported bugs
19 issues- Weird scratchy noise after every beat
- Every metronome chirp followed by static
- Terrible noise with the metronome
- Scratchy sound, sounds like blown speaker
- Fuzzy sound with each tone
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- Static sound with the metronome
- Awful alarm buzzing sound
- Weird buggy sound in the background
- Sound distortion happening when metronome is in use
- Strange noise in the count
- Extra sound after the beep
- Alternating 'beep-static' for compressions
- No sound when start button pressed and stopped
- Audio cue for adrenaline and rhythm checks doesn't work
- Sound dropped out
- CPR tone sometimes works, sometimes doesn't
- App won't work with new iOS
- Tempo not functioning
- Heart beats once silently and then stops
Requested features
30 requests- Add a BVM breath timer
- Visual cue for intervals
- Change epi times to 120 seconds
- Log other drugs (amiodarone, calcium gluconate, sodium bicarb)
- Add Chinese language option
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- Show total time elapsed
- Add Apple Watch version
- Keep track of how long each person was doing compressions
- Add 'check airway and c-spine' button
- Add respiration rate metronome with distinct sound
- Change pitch and volume of beeps
- Add 'other intervention/event' button with labeling
- Add free text section in log for clinical information
- Add delete and save button for log
- Add print option for log
- Add option for 30:2 CPR or continuous chest compressions with breaths every 10 compressions
- Add amiodarone button
- Add ventilation tones (every 3-5 sec pediatric, 5-6 sec adult, 6-8 sec advanced airway)
- Add button for other medications (vasopressin, etc.)
- Add option for different languages (e.g., German)
- Add a 'beep' at 2 minutes as an added warning
- Allow user to set rate between 100 and 120
- Add a button for IV/IO
- Add a button for Airway
- Add a button for Amioderone
- Add option to override phone sleep mode
- Change defibrillation button name to CPR
- Rename epi button to 'drug'
- Add a warning for 2-minute intervals
- Add option to change countdowns for new guidelines
Trust
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CPR Tempo
No in-app purchases
Trust
No in-app purchases
