# DrDrugs vs Davis Lab and Diagnostic Tests

The clearest difference is rating: Davis Lab and Diagnostic Tests at 5.0 against DrDrugs's 4.5. Davis Lab and Diagnostic Tests also leads on ads (none vs shown). DrDrugs's advantage is update cadence (every 4 months vs every 13 months) and ratings volume (35 vs 2). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. DrDrugs sells 6 in-app purchases, starting at $3.99 per month and Davis Lab and Diagnostic Tests sells 1 in-app purchase, starting at $38.99 per year. Whichever you choose, the download price is not the number that matters.

Davis Lab and Diagnostic Tests holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: DrDrugs has 35 ratings behind it against 2, so its average is the more settled of the two.

DrDrugs ships an update every 4 months, Davis Lab and Diagnostic Tests every 13 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | DrDrugs | Davis Lab and Diagnostic Tests |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (35 ratings)](https://appshunter.io/ios/app/drdrugs-guide-for-physicians/id1249280046/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/davis-lab-and-diagnostic-tests/id1605906059/reviews)** |
| Number of ratings | **35** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 46 MB | 474 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [Atmosphere Apps, Inc.](https://appshunter.io/developer/334077424) |

## What reviewers say

### DrDrugs

[App page](https://appshunter.io/ios/app/drdrugs-guide-for-physicians/id1249280046)

This medical reference app provides comprehensive drug information, including over 1,400 monographs and 700 dosing calculators. It focuses on safe practice and patient care, offering audio pronunciations and updated content for various patient populations and high-alert medications.

**Highlights:** 1,400+ drug monographs, 700+ built-in dosing calculators, Audio pronunciations for 1200+ drugs, NDC codes for 1300+ monographs, BEERS, REMS, and NDC indices, Pediatric, geriatric, and OB dosing, High Alert Medication identification

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drug Guide-Physicians 1/M Sub | $3.99 | per month |
| 25% off Limited Period Offer | $29.49 | per year |
| 20% off Limited Period Offer | $31.49 | per year |
| 15% off Limited Period offer | $33.49 | per year |
| Drug Guide-Physicians 1/Y Sub | $38.99 | per year |
| Drug Guide for Physicians,17Ed | $49.99 | one-time |


### Davis Lab and Diagnostic Tests

[App page](https://appshunter.io/ios/app/davis-lab-and-diagnostic-tests/id1605906059)

This medical reference app provides comprehensive information on lab and diagnostic tests. It helps users understand test procedures, interpret results, and offer quality patient care with detailed nursing implications, common uses, and interfering factors.

**Highlights:** Alphabetical listing of tests, Searchable by abbreviation, synonym, disease, Potential Nursing Problems tables, Common Use explanations, Pre-test, intra-test, post-test coverage, Patient safety and teaching information, Reference ranges in conventional and SI units

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $38.99 | per year |


## Frequently asked questions

### Is DrDrugs free?

DrDrugs is free to download, with in-app purchases available.

### Is Davis Lab and Diagnostic Tests free?

Davis Lab and Diagnostic Tests is free to download, with in-app purchases available.

### Which has better reviews, DrDrugs or Davis Lab and Diagnostic Tests?

Davis Lab and Diagnostic Tests is rated higher. DrDrugs averages 4.5 out of 5 from 35 ratings, while Davis Lab and Diagnostic Tests averages 5.0 from 2 ratings.

### Do DrDrugs or Davis Lab and Diagnostic Tests have ads?

DrDrugs shows ads; Davis Lab and Diagnostic Tests does not.

### Which is updated more often, DrDrugs or Davis Lab and Diagnostic Tests?

DrDrugs ships an update every 4 months, and Davis Lab and Diagnostic Tests every 13 months. Most recently, DrDrugs was updated on November 2, 2026 and Davis Lab and Diagnostic Tests on November 3, 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.*