# PFT eval vs APAPP ACE

The clearest difference is update cadence: APAPP ACE at every 4 days against PFT eval's every 8 months. On price, ads, 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.

PFT eval ships an update every 8 months, APAPP ACE every 4 days. The most recent releases landed on September 10, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | PFT eval | APAPP ACE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 3 MB | 16 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Joshua D. steinberg](https://appshunter.io/developer/374154837) | [Focus Medical Communications, LLC](https://appshunter.io/developer/1744148484) |

## What reviewers say

### 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


### APAPP ACE

[App page](https://appshunter.io/ios/app/apapp-ace/id6502762731)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PFT eval free?

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

### Is APAPP ACE free?

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

### Do PFT eval or APAPP ACE have ads?

Neither PFT eval nor APAPP ACE shows ads.

### Which is updated more often, PFT eval or APAPP ACE?

PFT eval ships an update every 8 months, and APAPP ACE every 4 days. Most recently, PFT eval was updated on September 10, 2026 and APAPP ACE on September 7, 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.*