# Initial Response vs ExxonMobil PSMS

The clearest difference is update cadence: Initial Response at monthly against ExxonMobil PSMS's every 4 months. Initial Response also leads on iOS requirement (16.0 vs 18.5). ExxonMobil PSMS's advantage is review sentiment (100% vs 83%). On price, rating, ratings volume and ads there is nothing between them.

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

Initial Response holds the better App Store score, 4.1 against 3.9. Both are backed by a comparable volume of ratings — 9 and 19 respectively. Written reviews complicate that: 83% of Initial Response's written reviews are positive against 100% of ExxonMobil PSMS's, so the app with the better star average is not the one people write more warmly about.

Initial Response ships an update monthly, ExxonMobil PSMS every 4 months. The most recent releases landed on July 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Initial Response | ExxonMobil PSMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (9 ratings)](https://appshunter.io/ios/app/initial-response/id1233465196/reviews)** | [3.9 (19 ratings)](https://appshunter.io/ios/app/exxonmobil-psms/id6479717943/reviews) |
| Number of ratings | 9 | **19** |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free | Free |
| Size | 178 MB | 178 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [The Response Group, Inc.](https://appshunter.io/developer/1005842863) | [Exxon Mobil Corporation](https://appshunter.io/developer/528788995) |

## What reviewers say

### Initial Response

[App page](https://appshunter.io/ios/app/initial-response/id1233465196)

This app allows authorized users to create and manage event documentation. Access emergency response plans and checklists, build situation maps, and capture information via typing or voice. It synchronizes changes with Incident Action Plan software.

**Highlights:** Build and manage event documentation, Access emergency response plans, Create customized checklists, Build situation maps, Capture information via voice or text, Synchronize with IAP Software

**Features:** Vision Pro support

**In-app purchases:** none


### ExxonMobil PSMS

[App page](https://appshunter.io/ios/app/exxonmobil-psms/id6479717943)

This app provides field workers with essential references to enhance safety management and reduce workplace injuries. It incorporates human performance concepts and promotes effective safety engagement to reinforce a culture of care and leadership.

**Highlights:** Safety checks on safeguards, Human performance concepts, Effective safety engagement, Workforce safety capability, Leadership expectations, Field worker references

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

**In-app purchases:** none


## Frequently asked questions

### Is Initial Response free?

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

### Is ExxonMobil PSMS free?

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

### Which has better reviews, Initial Response or ExxonMobil PSMS?

Initial Response is rated higher. Initial Response averages 4.1 out of 5 from 9 ratings, while ExxonMobil PSMS averages 3.9 from 19 ratings.

### Do Initial Response or ExxonMobil PSMS have ads?

Neither Initial Response nor ExxonMobil PSMS shows ads.

### Which is updated more often, Initial Response or ExxonMobil PSMS?

Initial Response ships an update monthly, and ExxonMobil PSMS every 4 months. Most recently, Initial Response was updated on July 24, 2026 and ExxonMobil PSMS on September 9, 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.*