# Calculate by QxMD vs Quick Lab

The clearest difference is review sentiment: Calculate by QxMD at 86% against Quick Lab's 50%. Calculate by QxMD also leads on ratings volume (5.1K vs 3). Quick Lab's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Quick Lab holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Calculate by QxMD has 5.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 86% of Calculate by QxMD's written reviews are positive against 50% of Quick Lab's, so the app with the better star average is not the one people write more warmly about.

Calculate by QxMD ships an update every 6 weeks, Quick Lab every 2 months. The most recent releases landed on November 1, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Calculate by QxMD | Quick Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5.1K ratings)](https://appshunter.io/ios/app/calculate-by-qxmd/id361811483/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/quick-lab/id1150432543/reviews)** |
| Number of ratings | **5.1K** | 3 |
| Positive reviews | **86.5% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 118 MB | 49 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [WebMD](https://appshunter.io/developer/295076332) | [A.M.L. B.V. BVBA](https://appshunter.io/developer/1150432542) |

## What reviewers say

### Calculate by QxMD

[App page](https://appshunter.io/ios/app/calculate-by-qxmd/id361811483)

This clinical calculator and decision support tool offers over 200 medical calculators and tools for diagnosis, treatment, and prognosis. It adapts to your practice and provides detailed references, integrating with PubMed and Read by QxMD.

**Highlights:** Over 200 medical calculators, Clinical decision support tools, Cardiology, internal medicine, and more, Knowledge translation from research, Question Flow technology, PubMed & Read integration, SI and Imperial units

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Excellent app
- 📋 Comprehensive set of calculators
- 🔍 Helpful references and explanations
- 🔧 Useful for daily practice
- 🧠 Great for students and trainees

**What reviewers complain about**

- 🐛 App freezes or crashes
- 🔍 Some calculators not working
- 🔑 Repeated login requests
- 🔍 Outdated or missing features
- 🚫 Ads can be intrusive

**Reported bugs**

- App freezes when using multiple calculators
- Unable to add items to favorites list
- Unable to see calculation results after input
- App crashes on startup without internet connection
- Landscape mode not working on iPad

**Requested features**

- Dark mode option
- Ability to save/favorite frequently used calculators
- Integration with electronic health records
- Metric to imperial unit conversion
- More specialized calculators (e.g., opioid equivalence, pediatric BP)


### Quick Lab

[App page](https://appshunter.io/ios/app/quick-lab/id1150432543)

Access lab results for doctors and vets on the go. View test results within minutes of execution. Stay updated with lab news, events, and collection center information.

**Highlights:** Access lab results remotely, View results within minutes, Lab news and updates, Information on events, Locate collection centers

**In-app purchases:** none


## Frequently asked questions

### Is Calculate by QxMD free?

Calculate by QxMD is free to download, with no in-app purchases.

### Is Quick Lab free?

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

### Which has better reviews, Calculate by QxMD or Quick Lab?

Quick Lab is rated higher. Calculate by QxMD averages 4.8 out of 5 from 5.1K ratings, while Quick Lab averages 5.0 from 3 ratings.

### Do Calculate by QxMD or Quick Lab have ads?

Calculate by QxMD shows ads; Quick Lab does not.

### Which is updated more often, Calculate by QxMD or Quick Lab?

Calculate by QxMD ships an update every 6 weeks, and Quick Lab every 2 months. Most recently, Calculate by QxMD was updated on November 1, 2026 and Quick Lab on October 18, 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.*