Comparison

VTE Calc vs Calcium Correction

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

Head to head
About

VTE Calc

This medical app provides quick access to common scoring systems for calculating the risk of deep venous thrombosis (DVT) or pulmonary embolism (PE). It includes Wells' scores for DVT and PE, the PERC score, and a built-in creatinine clearance calculator for administering low molecular weight heparins.

Highlights
  • Wells' score for DVT
  • Wells' score for PE
  • PERC score
  • Creatinine clearance calculator
  • Risk assessment tools
Features
Read full description

VTE Calc gives you immediate access to the most commonly used scoring systems for calculating the risk of deep venous thrombosis (DVT) or pulmonary embolism (PE). It includes the Wells' scores for DVT and PE and well as the PERC score. If you need to administer low molecular weight heparins, VTE Calc has a creatinine clearance calculator built in.

About

Calcium Correction

This medical calculator assists endocrinology specialists and general medics in adjusting calcium readings based on albumin levels. It offers a guided 'wizard' format for intuitive use, aiming to improve accuracy, efficiency, and patient safety in assessment and treatment protocols.

Highlights
  • Albumin-based calcium adjustment
  • Guided 'wizard' format
  • Patient results management
  • Data transfer options
  • Integrated information sections
  • Touch ID and PIN protection
Features
Read full description

INTRODUCTION: From the creators of the original iOS Clinical Diagnosis App range comes "Calcium Correction for Hypoalbuminemia", an interactive medical calculator that helps Endocrinology Specialists and General Medics alike to adjust a patient's calcium reading based upon their albumin level. APP OVERVIEW: Akin to other Doctot Apps, the care pathway within is presented in a "wizard" format, which quickly and intuitively guides the user through the various steps that are involved. Underpinned by an innovative design philosophy (please see http://www.doctot.com/key-strengths for more), this Doctot "X Series" App has been crafted to help improve the accuracy, efficiency, clarity, reliability, accessibility, usability, and speed of Calcium Correction-related assessment/treatment protocols. To assist the user, each scale has a comprehensive Information section that provides relevant background details, as well as an in-depth Help section. FURTHER FEATURES: To help meet differing needs of Medical Professionals, Doctot included within Calcium Correction for Hypoalbuminemia: - a Patient Results Management System - Patient Assessment Result Data Transfer options - Integrated Information/News sections - Touch ID and PIN Protection Security options - Networking and Messaging functionality BENEFITS: Like all of our Clinical Diagnosis Apps, Calcium Correction for Hypoalbuminemia was created to help: - Make More Informed Clinical Decisions - Enhance Patient Safety - Reduce the Risk of Medical Errors - Provide Greater Treatment Recommendations and Management Strategies - Treat and Manage Greater Patient Numbers - Save Critical Time DOWNLOAD FOR FREE: An independent, not-for-profit organisation that the likes of GOLD, the IOF and SINTEF chose to partner with, Doctot (which is spearheaded by Prof. Declan Lyons, a Consultant Geriatrician and MedTech Evangelist) are making this App available Free-Of-Charge. If you think your colleagues may benefit from it, please feel free to share the download link. Thank you so much. CREDIT: This calculation was created by Xavier Parent, MD; for more, please see: https://pubmed.ncbi.nlm.nih.gov/19654080/.

Screenshots

VTE Calc3 screens
Calcium Correction4 screens

Verdict

The call

The clearest difference is in-app purchases: Calcium Correction at none against VTE Calc's 1. Calcium Correction also leads on rating (5.0 vs 4.8). VTE Calc's advantage is update cadence (every 2 days vs every 8 months) and iOS requirement (9.0 vs 12.0). On price, ratings volume, ads 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. VTE Calc sells 1 one-off in-app purchase. Calcium Correction asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calcium Correction holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 5 respectively.

UpkeepUpdate frequency

VTE Calc ships an update every 2 days, Calcium Correction every 8 months. The most recent releases landed on August 15, 2026 and June 1, 2026 respectively.

Scorecard4 real differences · 5 level
VTE Calc versus Calcium Correction: the parameters behind the verdict, then further details
ParameterVTE CalcCalcium Correction
PriceFreeFree
Rating4.8 (4 ratings)5.0 (5 ratings) — better
Number of ratings45 — better
Update frequencyEvery 2 days — betterEvery 8 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size20 MB18 MB
Age rating12+17+
DeveloperLindum Medical LtdDOCTOT

Customer experience

VTE Calc

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Calcium Correction

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

VTE Calc

One-time1
  • VTE Calc - remove advertising$0.99
None

Calcium Correction

No in-app purchases

Questions

Is VTE Calc free?
VTE Calc is free to download, with in-app purchases available.
Is Calcium Correction free?
Calcium Correction is free to download, with no in-app purchases.
Which has better reviews, VTE Calc or Calcium Correction?
Calcium Correction is rated higher. VTE Calc averages 4.8 out of 5 from 4 ratings, while Calcium Correction averages 5.0 from 5 ratings.
Do VTE Calc or Calcium Correction have ads?
Neither VTE Calc nor Calcium Correction shows ads.
Which is updated more often, VTE Calc or Calcium Correction?
VTE Calc ships an update every 2 days, and Calcium Correction every 8 months. Most recently, VTE Calc was updated on August 15, 2026 and Calcium Correction on June 1, 2026.

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