# PJI Database vs Antibiotics Simplified

The clearest difference is price: PJI Database at Free against Antibiotics Simplified's $9.99. PJI Database also leads on update cadence (every 4 months vs every 47 months) and iOS requirement (10.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

PJI Database is free to download; Antibiotics Simplified costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PJI Database ships an update every 4 months, Antibiotics Simplified every 47 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PJI Database | Antibiotics Simplified |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/antibiotics-simplified/id1378346027/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 47 months |
| Monetization | — | Paid |
| Size | 17 MB | 53 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [GARMENMED, SCP](https://appshunter.io/developer/1178687025) | [Atmosphere Apps, Inc.](https://appshunter.io/developer/334077424) |

## What reviewers say

### PJI Database

[App page](https://appshunter.io/ios/app/pji-database/id1331588615)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Antibiotics Simplified

[App page](https://appshunter.io/ios/app/antibiotics-simplified/id1378346027)

This app simplifies learning about antibiotic pharmacotherapy by bridging basic science knowledge with clinical practice. It offers concise drug class reviews, explanations of antibacterial and antifungal drug characteristics, and aids in making logical treatment choices for infections.

**Highlights:** Basic microbiology review, Infectious disease pharmacotherapy, Drug Class Reviews, Antibacterial and antifungal drug characteristics, Figures and Flow Charts, Spectra of Activity Chart, Case Studies

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PJI Database free?

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

### Is Antibiotics Simplified free?

Antibiotics Simplified costs $9.99, with no in-app purchases.

### Do PJI Database or Antibiotics Simplified have ads?

Neither PJI Database nor Antibiotics Simplified shows ads.

### Which is updated more often, PJI Database or Antibiotics Simplified?

PJI Database ships an update every 4 months, and Antibiotics Simplified every 47 months. Most recently, PJI Database was updated on October 9, 2026 and Antibiotics Simplified on October 24, 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.*