# TapRooT® App vs ExxonMobil PSMS

The clearest difference is iOS requirement: TapRooT® App at 13.0 against ExxonMobil PSMS's 18.5. 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.

Both ship on a similar rhythm, roughly every 4 months. Both last shipped on September 9, 2026.

## The numbers

| Metric | TapRooT® App | ExxonMobil PSMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (19 ratings)](https://appshunter.io/ios/app/exxonmobil-psms/id6479717943/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Free |
| Size | 23 MB | 178 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [System Improvements, Inc.](https://appshunter.io/developer/519176024) | [Exxon Mobil Corporation](https://appshunter.io/developer/528788995) |

## What reviewers say

### TapRooT® App

[App page](https://appshunter.io/ios/app/taproot-app/id1487662402)

**Features:** macOS Compatibility

**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 TapRooT® App free?

TapRooT® App is free to download, with no in-app purchases.

### Is ExxonMobil PSMS free?

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

### Do TapRooT® App or ExxonMobil PSMS have ads?

Neither TapRooT® App nor ExxonMobil PSMS shows ads.

### Which is updated more often, TapRooT® App or ExxonMobil PSMS?

TapRooT® App ships an update every 4 months, and ExxonMobil PSMS every 4 months. Most recently, TapRooT® App was updated on September 9, 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.*