CVR Calc vs CathCompass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CVR Calc
This medical tool assists healthcare professionals in vascular access and infusion therapy by calculating catheter to vessel ratios. It helps clinicians quickly assess the area consumed within the intravascular space by catheters, supporting both venous and arterial devices.
- Catheter to vessel ratio calculation
- Supports venous and arterial devices
- Peripheral and central venous access device calculations
- Area-based calculations for patient assessment
- Uses ultrasound measurements for vessel size
- Based on academic research and awards
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CVRCalc was designed by clinicians, for clinicians — and is the tool for healthcare professionals who work in or perform Vascular Access and Infusion Therapy roles and want to monitor accurate catheter to vessel ratios. It is designed to calculate the area consumed within the intravascular space used by the catheter. The device can be used to calculate the area for both venous and arterial devices if preferred. This simple tool allows clinicians to make quick area-based calculations during the patient assessment process, along with using ultrasound to accurately measure the vessel size prior to the insertion of an intravascular device. It covers both peripheral intravenous devices (in both Gauge and French sizes) as well as central venous access devices (in French size only). Based on the 1st Place poster awarded at the Association for Vascular Access 2017 Scientific Meeting in Phoenix and supported with an academic publication, which can be found here - https://doi.org/10.1007/s11239-017-1569-y This App does NOT collect, record, store, or transmit any information entered, and is used to provide the mathematical catheter to vessel area-based calculations only.
CathCompass
This app helps manage intermittent catheterization or neurogenic bladder by logging output, intake, and medications. It offers personalized reminders and data export for care teams, keeping all information private on your device.
- Log catheterization output volume and time
- Record fluid intake
- Note leakage episodes
- Track medications and dosing
- Personalized reminder intervals
- Export data to PDF or CSV
- On-device data storage
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CathCompass is a simple, private daily log for anyone managing intermittent catheterization or a neurogenic bladder condition. TRACK WHAT MATTERS • Log catheterization output volume and time • Record fluid intake throughout the day • Note leakage episodes • Track medications and dosing schedules NEVER MISS A SCHEDULE • Set personalized reminder intervals, down to 15 minutes • Choose between a single notification or persistent, multi-alert reminders • Add a home screen widget to see your next reminder at a glance UNDERSTAND YOUR PATTERNS • See daily totals for intake and output • Track your catheterization streak and adherence • Review your full history at a glance SHARE WITH YOUR CARE TEAM • Export a clean PDF or CSV diary — including medications — to bring to appointments YOUR DATA, YOUR DEVICE • All information stays on your device by default • Optional iCloud backup keeps your data in your own private iCloud account — never shared with us or anyone else • No ads, no tracking, no data sales CathCompass was built for people living with neurogenic bladder, spinal cord injuries, multiple sclerosis, spina bifida, and anyone else who relies on a consistent catheterization routine.
Screenshots
Verdict
The clearest difference is rating: CathCompass at 5.0 against CVR Calc's 3.3. CVR Calc's advantage is ratings volume (26 vs 2) and device support (3 vs 1). 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.
CathCompass holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: CVR Calc has 26 ratings behind it against 2, so its average is the more settled of the two.
| Parameter | CVR Calc | CathCompass |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (26 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 26 — better | 2 |
| Update frequency | Every 8 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 18.5 | 18.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 12+ |
| Developer | Global Vascular Access, LLC | CODY DAVID RICHARDS |
Customer experience
CVR Calc
CathCompass
In-app purchases
CVR Calc
No in-app purchases
CathCompass
No in-app purchases
Questions
Is CVR Calc free?
Is CathCompass free?
Which has better reviews, CVR Calc or CathCompass?
Do CVR Calc or CathCompass have ads?
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