# ABG Acid vs MAPPP

The clearest difference is monetization model: MAPPP at free against ABG Acid's paid. ABG Acid's advantage is rating (4.6 vs 4.2) and review sentiment (63% vs 50%). On price, ratings volume, update cadence and ads there is nothing between them.

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

ABG Acid holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 7 and 5 respectively. Written reviews point the same way: 63% of ABG Acid's written reviews are positive against 50% of MAPPP's.

ABG Acid ships an update every 5 months, MAPPP every 4 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | ABG Acid | MAPPP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/abg-acid-base-eval/id426019807/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/mappp/id986004720/reviews) |
| Number of ratings | **7** | 5 |
| Positive reviews | **63.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 54 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Joshua D. steinberg](https://appshunter.io/developer/374154837) | [Island Peer Review Organization, Inc](https://appshunter.io/developer/986004719) |

## What reviewers say

### ABG Acid

[App page](https://appshunter.io/ios/app/abg-acid-base-eval/id426019807)

This app guides clinicians through analyzing ABGs and electrolytes to identify acid-base disorders and diagnostic ideas for ill patients. It teaches a stepwise thinking process and provides differential diagnoses with explanations, aiding patient care and clinician learning.

**Highlights:** Stepwise ABG and electrolyte analysis, Identifies acid-base disorders, Provides diagnostic ideas, Teaches critical thinking process, Includes differential diagnoses mnemonics, Calculates predicted pCO2 and corrected bicarbonate

**Features:** macOS Compatibility

**In-app purchases:** none


### MAPPP

[App page](https://appshunter.io/ios/app/mappp/id986004720)

This medical guide assists clinicians in managing patients on anticoagulation therapy undergoing surgery or invasive procedures. It helps evaluate bleeding and thrombosis risks, guiding decisions on interrupting anticoagulation and using bridging therapy.

**Highlights:** Evaluate bleeding and thrombosis risk, Guide anticoagulation interruption, Provide bridging therapy guidance, Detail drug dosing, Offer laboratory monitoring advice, Encourage clinician communication

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ABG Acid free?

ABG Acid is free to download, with no in-app purchases.

### Is MAPPP free?

MAPPP is free to download, with no in-app purchases.

### Which has better reviews, ABG Acid or MAPPP?

ABG Acid is rated higher. ABG Acid averages 4.6 out of 5 from 7 ratings, while MAPPP averages 4.2 from 5 ratings.

### Do ABG Acid or MAPPP have ads?

Neither ABG Acid nor MAPPP shows ads.

### Which is updated more often, ABG Acid or MAPPP?

ABG Acid ships an update every 5 months, and MAPPP every 4 months. Most recently, ABG Acid was updated on November 1, 2026 and MAPPP on November 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*