# FlyPHI vs ZOLL

The clearest difference is update cadence: FlyPHI at every 2 months against ZOLL's every 17 months. FlyPHI also leads on iOS requirement (11.0 vs 13.0). ZOLL's advantage is ratings volume (4 vs 1). On price, rating, 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.

On the App Store both sit at effectively the same score — 5.0 for FlyPHI against 5.0 for ZOLL. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

FlyPHI ships an update every 2 months, ZOLL every 17 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | FlyPHI | ZOLL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/flyphi/id1592532569/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/zoll-messenger/id1604867248/reviews) |
| Number of ratings | 1 | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 17 months |
| Monetization | Free | Free |
| Size | 12 MB | 2 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Softtech, Incorporated.](https://appshunter.io/developer/994593098) | [ZOLL Data Systems, Inc.](https://appshunter.io/developer/385812404) |

## What reviewers say

### FlyPHI

[App page](https://appshunter.io/ios/app/flyphi/id1592532569)

This application facilitates electronic requests for helicopter transport, transmitting user information and GPS location to dispatch PHI Air Medical services. It offers real-time aircraft tracking and streamlines communication for efficient clinical transport.

**Highlights:** Electronic flight requests, Real-time aircraft tracking, GPS location transmission, Simplified dispatch process, Improved communication, Record keeping

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

**In-app purchases:** none


### ZOLL

[App page](https://appshunter.io/ios/app/zoll-messenger/id1604867248)

This mobile application offers a streamlined way for healthcare professionals to access patient status and critical information directly on their smartphones. It provides actionable insights to support informed decision-making in medical settings.

**Highlights:** Patient status access, Patient information retrieval, Actionable insights, Mobile accessibility, Simplified interface

**In-app purchases:** none


## Frequently asked questions

### Is FlyPHI free?

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

### Is ZOLL free?

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

### Which has better reviews, FlyPHI or ZOLL?

FlyPHI and ZOLL are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do FlyPHI or ZOLL have ads?

Neither FlyPHI nor ZOLL shows ads.

### Which is updated more often, FlyPHI or ZOLL?

FlyPHI ships an update every 2 months, and ZOLL every 17 months. Most recently, FlyPHI was updated on October 24, 2026 and ZOLL on October 24, 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.*