# Preop Eval vs PFT eval

The clearest difference is review sentiment: Preop Eval at 67% against PFT eval's 50%. PFT eval's advantage is iOS requirement (13.0 vs 16.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Preop Eval ships an update every 6 months, PFT eval every 8 months. Both last shipped on September 10, 2026.

## The numbers

| Metric | Preop Eval | PFT eval |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/preop-eval/id374154834/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 15 MB | 3 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [United Health Services, Inc.](https://appshunter.io/developer/1451318916) | [Joshua D. steinberg](https://appshunter.io/developer/374154837) |

## What reviewers say

### Preop Eval

[App page](https://appshunter.io/ios/app/preop-eval/id374154834)

This app provides guidance for evaluating and preparing adult patients for non-cardiac surgery. It includes algorithms and resources on medication management, cardiac event timing, and preoperative testing, serving as both a reference and a teaching tool for medical professionals.

**Highlights:** Cardiac evaluation algorithm, Medication guidance (starting/stopping), Surgery timing after cardiac events, Preoperative testing recommendations, Review for students and residents, Perioperative insulin management

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

**In-app purchases:** none


### PFT eval

[App page](https://appshunter.io/ios/app/pft-eval/id527073707)

This app provides a guided, stepwise approach for clinicians to analyze Pulmonary Function Tests (PFTs) and identify ventilation and respiration disorders. It teaches the diagnostic thinking process, offering differential diagnoses for various PFT findings. Ideal for occasional users of PFTs, it aids in patient care and clinician learning.

**Highlights:** Stepwise PFT analysis, Ventilation and respiration disorder identification, Differential diagnoses for PFT findings, Guidance on PFT quality assessment, Information on standard cutoffs and testing protocols, Educational tool for clinicians

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Preop Eval free?

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

### Is PFT eval free?

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

### Do Preop Eval or PFT eval have ads?

Neither Preop Eval nor PFT eval shows ads.

### Which is updated more often, Preop Eval or PFT eval?

Preop Eval ships an update every 6 months, and PFT eval every 8 months. Most recently, Preop Eval was updated on September 10, 2026 and PFT eval on September 10, 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.*