# ABX Dosage vs IDSA Practice Guidelines

The clearest difference is review sentiment: ABX Dosage at 100% against IDSA Practice Guidelines's 0%. ABX Dosage also leads on update cadence (every 3 months vs every 7 months) and iOS requirement (9.0 vs 12.0). IDSA Practice Guidelines's advantage is price (Free vs $1.99). On ads, in-app purchases and device support there is nothing between them.

IDSA Practice Guidelines is free to download; ABX Dosage costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ABX Dosage ships an update every 3 months, IDSA Practice Guidelines every 7 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | ABX Dosage | IDSA Practice Guidelines |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.8 (559 ratings)](https://appshunter.io/ios/app/idsa-practice-guidelines/id1478886375/reviews)** |
| Number of ratings | — | **559** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Paid | **Free** |
| Size | 30 MB | 105 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [GARMENMED, SCP](https://appshunter.io/developer/1178687025) | [Infectious Diseases Society of America](https://appshunter.io/developer/1477996603) |

## What reviewers say

### ABX Dosage

[App page](https://appshunter.io/ios/app/abx-dosage/id1178687026)

This medical reference guide provides antimicrobial dosage adjustments for patients with renal failure. It offers recommendations for over 180 antimicrobials, with a calculator to estimate creatinine clearance and extensive bibliographies.

**Highlights:** 180+ antimicrobials with dosage recommendations, Cockcroft-Gault creatinine clearance calculator, Extensive bibliographies per antimicrobial, Regularly updated data, Spotlight Search support, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### IDSA Practice Guidelines

[App page](https://appshunter.io/ios/app/idsa-practice-guidelines/id1478886375)

Access and stay updated with the latest clinical guidelines from the Infectious Diseases Society of America. This app offers interactive tools, search functionality, and the ability to bookmark key information and take notes for healthcare professionals.

**Highlights:** Access clinical guidelines, Interactive tools, Search guidelines, Bookmark pages, Take notes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ABX Dosage free?

ABX Dosage costs $1.99, with no in-app purchases.

### Is IDSA Practice Guidelines free?

IDSA Practice Guidelines is free to download, with no in-app purchases.

### Do ABX Dosage or IDSA Practice Guidelines have ads?

Neither ABX Dosage nor IDSA Practice Guidelines shows ads.

### Which is updated more often, ABX Dosage or IDSA Practice Guidelines?

ABX Dosage ships an update every 3 months, and IDSA Practice Guidelines every 7 months. Most recently, ABX Dosage was updated on October 7, 2026 and IDSA Practice Guidelines on October 12, 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.*