Comparison

CVR Calc vs CathCompass

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

CVR Calc3 screens
CathCompass4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard3 real differences · 7 level
CVR Calc versus CathCompass: the parameters behind the verdict, then further details
ParameterCVR CalcCathCompass
PriceFreeFree
Rating3.3 (26 ratings)5.0 (2 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings26 — better2
Update frequencyEvery 8 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS18.518.0 — better
Further details — not scored
Size4 MB3 MB
Age rating4+12+
DeveloperGlobal Vascular Access, LLCCODY DAVID RICHARDS

Customer experience

CVR Calc

All ratings26 ratings
Positive50.0%
Neutral11.5%
Negative38.5%
Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

CathCompass

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CVR Calc

No in-app purchases

None

CathCompass

No in-app purchases

Questions

Is CVR Calc free?
CVR Calc is free to download, with no in-app purchases.
Is CathCompass free?
CathCompass is free to download, with no in-app purchases.
Which has better reviews, CVR Calc or CathCompass?
CathCompass is rated higher. CVR Calc averages 3.3 out of 5 from 26 ratings, while CathCompass averages 5.0 from 2 ratings.
Do CVR Calc or CathCompass have ads?
Neither CVR Calc nor CathCompass shows ads.

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