Comparison

ExxonMobil PSMS vs Chateau Mobile

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ExxonMobil PSMS

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
Read full description

ExxonMobil’s PSMS (Personnel Safety Management System) App is designed to support efforts to reduce or eliminate Fatalities and Life-Altering Injuries by providing useful references to field workers. Our Personnel Safety Management System (PSMS) is designed to consistently deliver “safety in the moment” by more effectively managing safeguards before and during higher-risk work by: • Providing useful checks on safeguards that keep people safe during higher risk work. • Leveraging the latest human performance concepts. • Driving effective safety engagement between groups. • Building and validating the safety capability of our workforce. Reinforcing ExxonMobil’s core value of Care, the PSMS clarifies leadership expectations at every level to teach people how to be safety leaders no matter where they work. This App provides key references to help field workers achieve the safety objectives and will support our ExxonMobil employees, business partners, and serve the broader industry in our common mission to reduce or eliminate fatalities and life-altering injuries.

About

Chateau Mobile

This app streamlines data collection for environmental professionals conducting leak detection and repair programs. It integrates wirelessly with a secure database, supports various inspection methods, and offers enhanced GPS and automated data capture for improved efficiency and compliance.

Highlights
  • Wireless data sync to Chateau LDAR database
  • Offline data saving and syncing
  • Method 21 and OGI inspection support
  • Enhanced GPS and routing
  • Automated data capture via Bluetooth
  • Calibration management with SpanBox
  • Real-time data access and audits
Read full description

Take your Leak Detection and Repair (LDAR) program to the next level with Chateau Mobile, the official field companion for LDARtools' Chateau software. Designed for environmental professionals and technicians, Chateau Mobile streamlines data collection, improves efficiency, and ensures compliance with EPA Method 21 and other fugitive emission regulations. Key Features: Seamless Integration: Wirelessly sync your inspection data, including readings, photos, and videos, directly to your secure Chateau LDAR database. Work uninterrupted: Chateau Mobile saves your data offline and syncs when you’re back online. Method 21 & OGI Support: Whether you're conducting traditional Method 21 inspections or using Optical Gas Imaging (OGI), Chateau Mobile has you covered. Our platform supports both, as well as hybrid programs. Enhanced GPS & Routing: Effortlessly locate components and navigate your inspection routes with our advanced GPS features. Automated Data Capture: Electronically capture all inspection data via Bluetooth, eliminating manual data entry and reducing errors. Calibration Management: When paired with a SpanBox, Chateau Mobile manages the entire calibration process, ensuring your equipment is always in compliance. Real-Time Data & Audits: Access your LDAR data from anywhere and benefit from over 120+ daily database audits that send email alerts for any anomalies. Compliance at Your Fingertips: Chateau Mobile is designed to help you comply with all VOC and Hazardous Air Pollutant Fugitive Emissions Regulations. About Chateau by LDARtools: Chateau is the premier software solution for managing all aspects of your fugitive emissions program. From component inventories and leak tracking to regulatory reporting and advanced analytics, Chateau provides a comprehensive and user-friendly platform for LDAR professionals. Download Chateau Mobile today and experience the future of LDAR data management. (Note: This app requires an active Chateau LDAR software license from LDARtools.)

Screenshots

ExxonMobil PSMS3 screens
Chateau Mobile4 screens

Verdict

The call

The clearest difference is rating: Chateau Mobile at 5.0 against ExxonMobil PSMS's 3.9. Chateau Mobile also leads on update cadence (every 2 weeks vs every 4 months) and iOS requirement (15.3 vs 18.5). ExxonMobil PSMS's advantage is ratings volume (19 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Chateau Mobile holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: ExxonMobil PSMS has 19 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

ExxonMobil PSMS ships an update every 4 months, Chateau Mobile every 2 weeks. Both last shipped on September 9, 2026.

Scorecard4 real differences · 6 level
ExxonMobil PSMS versus Chateau Mobile: the parameters behind the verdict, then further details
ParameterExxonMobil PSMSChateau Mobile
PriceFreeFree
Rating3.9 (19 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings19 — better2
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.515.3 — better
Further details — not scored
Size178 MB98 MB
Age rating17+4+
DeveloperExxon Mobil CorporationLDARtools, Inc.

Customer experience

ExxonMobil PSMS

All ratings19 ratings
Positive73.7%
Neutral0.0%
Negative26.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Chateau Mobile

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ExxonMobil PSMS

No in-app purchases

None

Chateau Mobile

No in-app purchases

Questions

Is ExxonMobil PSMS free?
ExxonMobil PSMS is free to download, with no in-app purchases.
Is Chateau Mobile free?
Chateau Mobile is free to download, with no in-app purchases.
Which has better reviews, ExxonMobil PSMS or Chateau Mobile?
Chateau Mobile is rated higher. ExxonMobil PSMS averages 3.9 out of 5 from 19 ratings, while Chateau Mobile averages 5.0 from 2 ratings.
Do ExxonMobil PSMS or Chateau Mobile have ads?
Neither ExxonMobil PSMS nor Chateau Mobile shows ads.
Which is updated more often, ExxonMobil PSMS or Chateau Mobile?
ExxonMobil PSMS ships an update every 4 months, and Chateau Mobile every 2 weeks. Most recently, ExxonMobil PSMS was updated on September 9, 2026 and Chateau Mobile on September 9, 2026.

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