# MedCalX vs SOFA ⊗

The clearest difference is rating: SOFA ⊗ at 5.0 against MedCalX's 3.7. SOFA ⊗ also leads on in-app purchases (none vs 3) and iOS requirement (9.0 vs 17.0). MedCalX's advantage is ratings volume (30 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MedCalX sells 3 one-off in-app purchases. SOFA ⊗ asks for nothing beyond the download.

SOFA ⊗ holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: MedCalX has 30 ratings behind it against 1, so its average is the more settled of the two.

MedCalX ships an update every 5 months, SOFA ⊗ every 4 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MedCalX | SOFA ⊗ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (30 ratings)](https://appshunter.io/ios/app/medcalx/id1041464932/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sofa/id1317080900/reviews)** |
| Number of ratings | **30** | 1 |
| Positive reviews | 45.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 45 MB | 9 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Ossus GmbH](https://appshunter.io/developer/286022405) | [Md. Mamun-Ur-Rashid](https://appshunter.io/developer/700724354) |

## What reviewers say

### MedCalX

[App page](https://appshunter.io/ios/app/medcalx/id1041464932)

This medical calculator app provides healthcare professionals with a comprehensive tool for complex medical formulas, scores, and classifications. It offers an extensive library of over 300 medical calculations, patient management features, and sharing capabilities.

**Highlights:** Extensive medical formula library (300+), Patient management and data saving, Customizable workflows, Multiple result sharing options, Detailed information and references, US and SI unit support, iCloud synchronization for favorites

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MedCalc 3 Upgrade | Free | one-time |
| Doximity Registration | Free | one-time |
| MedCalX Unlock | $4.99 | one-time |

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 📱 Comprehensive collection of medical formulas and scores
- 🚀 Fast calculations and quick access
- 📚 Includes PubMed links and background information
- 🌍 Multi-language support

**What reviewers complain about**

- 💰 Paywalls for previously free calculators
- 🔄 Forced paid upgrades for existing users
- ❌ Missing many important medical scores
- ⏱️ Infrequent updates and maintenance
- 🐛 Frequent crashes and stability issues

**Reported bugs**

- App crashes on startup
- App crashes when taking patient photos
- App fails to open or becomes unresponsive
- Unable to restore previous purchases
- Doximity unlock feature not working

**Requested features**

- SCORE2 and other modern cardiovascular risk scores
- TRiP(cast) score
- Valve disease calculations
- Pediatric medication dosing calculators
- Electrolyte and fluid replacement calculations


### SOFA ⊗

[App page](https://appshunter.io/ios/app/sofa/id1317080900)

This medical app calculates the Sequential Organ Failure Assessment (SOFA) score. It assesses organ system performance and assigns a score to determine the risk of mortality for ICU patients. A higher SOFA score indicates a greater likelihood of mortality.

**Highlights:** SOFA score calculation, Organ system assessment, Mortality risk determination, ICU patient data analysis

**In-app purchases:** none


## Frequently asked questions

### Is MedCalX free?

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

### Is SOFA ⊗ free?

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

### Which has better reviews, MedCalX or SOFA ⊗?

SOFA ⊗ is rated higher. MedCalX averages 3.7 out of 5 from 30 ratings, while SOFA ⊗ averages 5.0 from 1 ratings.

### Do MedCalX or SOFA ⊗ have ads?

Neither MedCalX nor SOFA ⊗ shows ads.

### Which is updated more often, MedCalX or SOFA ⊗?

MedCalX ships an update every 5 months, and SOFA ⊗ every 4 months. Most recently, MedCalX was updated on October 18, 2026 and SOFA ⊗ on October 2, 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.*