# Sanford Guide Antimicrobial vs BoneCalc

The clearest difference is in-app purchases: BoneCalc at none against Sanford Guide Antimicrobial's 3. BoneCalc also leads on update cadence (weekly vs every 3 weeks). Sanford Guide Antimicrobial's advantage is chart position (#5 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sanford Guide Antimicrobial sells 3 in-app purchases, starting at $4.99 per year. BoneCalc asks for nothing beyond the download.

Sanford Guide Antimicrobial ships an update every 3 weeks, BoneCalc weekly. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Sanford Guide Antimicrobial | BoneCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.9K ratings)](https://appshunter.io/ios/app/sanford-guide-antimicrobial/id863196620/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | 84.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Subscription | — |
| Best chart rank | **#5** | — |
| Size | 46 MB | 72 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Antimicrobial Therapy, Inc.](https://appshunter.io/developer/443442554) | [BC Children's Hospital](https://appshunter.io/developer/1521364756) |

## What reviewers say

### Sanford Guide Antimicrobial

[App page](https://appshunter.io/ios/app/sanford-guide-antimicrobial/id863196620)

**Currently charting:** #5 Top Grossing · Medical (US App Store)

Provides clinicians with concise, evidence-based treatment guidance for infectious diseases. Features interactive tools like spectra charts, drug interaction checkers, and dosing calculators to support rapid decision-making in fast-paced medical settings.

**Highlights:** Clinically actionable answers, Institutionally diverse editorial team, Constant updates, Interactive antibacterial spectra chart, Drug-drug interaction checker, Trustworthy dosing calculators

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| U.S. Vaccine Guidelines | $4.99 | per year |
| Sanford Guide | $39.99 | per year |
| Sanford Guide All Access | $79.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick access to information
- 💡 Helpful charts and tables
- 🔍 Comprehensive coverage of infections and treatments
- 📚 Up-to-date content and frequent updates

**What reviewers complain about**

- 🐛 Occasional crashes or freezing
- ⏱️ Slow search function
- 💰 Expensive subscription model
- 🔒 Login issues and subscription verification problems

**Reported bugs**

- App freezing or closing unexpectedly
- Login and subscription verification problems
- Corrupted passwords and inability to reset

**Requested features**

- Side-by-side antibiotic susceptibility comparison
- Offline access to content
- Improved navigation and UI


### BoneCalc

[App page](https://appshunter.io/ios/app/bonecalc/id1535346472)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sanford Guide Antimicrobial free?

Sanford Guide Antimicrobial is free to download, with in-app purchases available.

### Is BoneCalc free?

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

### Do Sanford Guide Antimicrobial or BoneCalc have ads?

Neither Sanford Guide Antimicrobial nor BoneCalc shows ads.

### Which is updated more often, Sanford Guide Antimicrobial or BoneCalc?

Sanford Guide Antimicrobial ships an update every 3 weeks, and BoneCalc weekly. Most recently, Sanford Guide Antimicrobial was updated on October 26, 2026 and BoneCalc on October 27, 2026.

---

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