# STOP DataPro® vs EmergencyOS

STOP DataPro® and EmergencyOS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on June 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | STOP DataPro® | EmergencyOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/stop-datapro/id995944349/reviews)** | — |
| Number of ratings | **10** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 7 MB | 56 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DSS Sustainable Solutions Switzerland SA](https://appshunter.io/developer/1687688600) | [AppGear](https://appshunter.io/developer/1030140741) |

## What reviewers say

### STOP DataPro®

[App page](https://appshunter.io/ios/app/stop-datapro/id995944349)

Streamline safety observations with this app. Record observations online or offline, eliminate paper forms, and sync data directly to your STOP DataPro® website. Customize checklists and edit entries before syncing for efficient safety management.

**Highlights:** Perform safety observations offline, Eliminate paper forms, Download custom checklists, Edit observations before syncing, Sync observations to web platform

**In-app purchases:** none


### EmergencyOS

[App page](https://appshunter.io/ios/app/emergencyos/id6499440404)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is STOP DataPro® free?

STOP DataPro® is free to download, with no in-app purchases.

### Is EmergencyOS free?

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

### Do STOP DataPro® or EmergencyOS have ads?

Neither STOP DataPro® nor EmergencyOS shows ads.

### Which is updated more often, STOP DataPro® or EmergencyOS?

STOP DataPro® ships an update every 2 months, and EmergencyOS every 2 months. Most recently, STOP DataPro® was updated on June 1, 2026 and EmergencyOS on September 11, 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.*