Comparison

ABG Expert vs GenoTrackr

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

Head to head
About

ABG Expert

This medical tool provides accurate and flexible acid-base analysis for healthcare professionals. It offers detailed explanations, customizable ranges, and advanced features like anion gap correction and A-a gradient adjustments for various patient conditions and locations.

Highlights
  • Validated accuracy with real-world testing
  • Plausibility checks for physiologically impossible data
  • Automatic anion gap correction with albumin
  • Detailed explanations with equations
  • Separate or combined analysis of ABG, anion gap, A-a gradient
  • Customizable normal ranges for anion gap and delta gap
  • Age and barometric pressure adjustments for A-a gradient
  • Support for SI and non-SI units
  • Color-coded results and differential diagnoses
  • Adjustments for chronic respiratory conditions
Features
Read full description

ABG Expert™ is simply the best acid-base analysis tool with features available in no other app. Designed and tested by practicing physicians, ABG Expert is trusted by medical professionals for unparalleled accuracy, flexibility, and power while remaining completely intuitive to use. Whether you are a physician, nurse, respiratory therapist, paramedic, or student, ABG Expert is your ideal acid base analysis app. Accuracy- • ABG Expert has been validated using extensive testing under real-world conditions. • No need to worry about entering physiologically impossible data by mistake. Data is checked for plausibility and for internal consistency using the Henderson-Hasselbalch equation. • An accurate analysis depends on an accurate anion gap. ABG Expert has you covered with automatic correction of the anion gap when albumin is provided. • Never again wonder about how a result was obtained. Detailed explanations include easy-to-understand equations so you can be sure the calculations are correct. Flexibility- • Need the arterial blood gas analysis, but not the anion gap or A-a gradient? No problem. ABG Expert can analyze the data for all three results separately or together. • Set the normal anion gap range based on the normal range at your institution. Or, use your patient’s own baseline anion gap to maximize your sensitivity to detect disorders. • Caring for an 80-year-old patient in Denver? Provide age and barometric pressure, and ABG Expert automatically adjusts interpretation of the A-a gradient. • Need more specificity? Adjust the normal delta gap range based on the literature you follow in your practice. • ABG Expert works as well in Bangkok as it does in Boston with full support for SI and non-SI units. Power- • Color-coded results allow for rapid analysis in critical situations. One additional click gives you a detailed differential diagnosis and additional recommendations. • Concerned about a new problem in your patient with advanced COPD? ABG Expert can adjust its calculations for chronic respiratory conditions so you can detect additional disorders that are missed by other apps. • Detailed explanations of disorders integrate ABG, anion gap, and A-a gradient results providing individualized answers like no textbook can. • Refine your differential diagnosis even further with the included osmolal gap and urine anion gap calculators. • ABG Expert combines beauty and brains with optimization for iOS devices running iOS 13 and later. Disclaimer: Brian Dale Vander Werf MD Inc. has made every effort to ensure the accuracy of the information included in this product. However, the authors, developers, and Brian Dale Vander Werf MD Inc. are not responsible for errors or omissions or for any consequences from the use of this product and make no warranty, expressed or implied, with respect to the currency, completeness, or accuracy of the contents of this product. This product has been designed as a supplemental source of information for medical professionals. This product is not a substitute for clinical judgment, and the use of the information produced by this product in a particular situation remains the responsibility of the medical professional. Privacy Policy: This product does not collect, store, or transmit individually identifiable health information. References: NEJM. 2014; 371: 1434. Medicine. 1980; 59(3): 161. Kidney International. 2009; 76: 1239. Emerg Med. 1990; 19: 1310. Clin J Am Soc Nephrol. 2007; 2: 162. Nat Rev Nephrol. 2010; 6: 274. Anaesthesia. 2008; 63: 294. Clin J Am Soc Nephrol. 2012; 7: 671. The ICU Book. 3rd ed. Lippincott Williams & Wilkins; 2007.

About

GenoTrackr

Features
Read full description

GenoTrackr is the indispensable tool for coaches, therapists and consultants for the precise and simple analysis of family systems. DISCOVER DEEP RELATIONSHIP PATTERNS • Create multi-generational genograms with standardized symbols for clear insights • Document family systems according to McGoldrick's therapeutic standards • Capture emotional relationships, conflicts and attachment patterns precisely • Highlight health indicators such as depression, addiction and chronic diseases INTUITIVE USER EXPERIENCE • Seamless drag-and-drop functionality on an interactive screen • Practical zoom and swivel functions for managing large tree trunks • Automatic layout for organized and tidy visualization • Household groups for living persons for a clear overview COMPREHENSIVE DOCUMENTATION • Timeframes for family events such as births, weddings and deaths • Detailed individual profiles with notes for improving understanding • Analyze statistics and patterns for deeper insights • Create PDF reports for easy documentation and transfer COMPLIANCE WITH PROFESSIONAL STANDARDS • Use standardized genogram symbols for consistency • Access over 50 relationship types such as marriages and partnerships • Document sensitive information such as abuse responsibly • Define child relationships as biological, adopted or foster for clarity DATA PROTECTION AND SECURITY • Anonymized copy with a click – names, notes, and exact dates are removed, while relationship patterns remain intact. Ideal for data protection-compliant case discussions in supervision, intervision, and teaching. • All data remains confidential on your device and in iCloud • Automatic synchronization between iPad and Mac for up-to-date information • No registration required, GDPR-compliant for worry-free working EXPORT AND SHARE WITH SECURITY • Create PDF reports with genogram summaries for effective distribution • Export PNGs for presentations, SVGs for editing and JSONs for data backup INTEGRATION WITHOUT ANY COMPROMISE WITH COACHINGTRACKR • Connect people in the genogram with your clients for comprehensive profiles • Enjoy seamless data transfer between apps • Sync data through a shared iCloud container GenoTrackr is designed to meet the needs of coaches, family therapists, social workers and counselors by adhering to therapeutic standards and enables professional family system documentation. Optimized for iPad and Mac for seamless workflows. Subscription and terms of use: GenoTrackr offers various subscription options to meet your needs. These subscriptions automatically renew and provide continuous access to our Pro features. In compliance with the App Store requirements, we adhere to the standard Apple Terms of Use (EULA), supplemented by our Terms of Use at https://coachingtrackr.app/terms. By downloading and using GenoTrackr, you agree to these terms. You can view the standard Apple EULA at the following link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/. This link leads you to the comprehensive legal terms that govern your use of our app in accordance with Apple's guidelines. Privacy policy: https://coachingtrackr.app/privacy

Screenshots

ABG Expert4 screens
GenoTrackr4 screens

Verdict

The call

The clearest difference is in-app purchases: ABG Expert at none against GenoTrackr's 2. ABG Expert also leads on iOS requirement (13.0 vs 18.5). GenoTrackr's advantage is update cadence (every 2 months vs every 5 months). On price, ads and device support 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. GenoTrackr sells 2 in-app purchases, starting at $5.99 per month. ABG Expert asks for nothing beyond the download.

UpkeepUpdate frequency

ABG Expert ships an update every 5 months, GenoTrackr every 2 months. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
ABG Expert versus GenoTrackr: the parameters behind the verdict, then further details
ParameterABG ExpertGenoTrackr
PriceFreeFree
Rating4.8 (9 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better18.5
Further details — not scored
Size2 MB13 MB
Age rating12+4+
DeveloperBrian Dale Vander Werf MD IncRalf Rueckert

In-app purchases

None

ABG Expert

No in-app purchases

2 purchases

GenoTrackr

Subscriptions2
  • GenoTrackr Pro Monthly$5.991 Month
  • GenoTrackr Pro 1 Year$59.991 Year

Questions

Is ABG Expert free?
ABG Expert is free to download, with no in-app purchases.
Is GenoTrackr free?
GenoTrackr is free to download, with in-app purchases available.
Do ABG Expert or GenoTrackr have ads?
Neither ABG Expert nor GenoTrackr shows ads.
Which is updated more often, ABG Expert or GenoTrackr?
ABG Expert ships an update every 5 months, and GenoTrackr every 2 months. Most recently, ABG Expert was updated on October 20, 2026 and GenoTrackr on October 25, 2026.

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