# CertCheck vs ExxonMobil PSMS

The clearest difference is rating: CertCheck at 5.0 against ExxonMobil PSMS's 3.9. CertCheck also leads on iOS requirement (12.0 vs 18.5). ExxonMobil PSMS's advantage is ratings volume (19 vs 2). 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.

CertCheck 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.

CertCheck ships an update every 2 months, ExxonMobil PSMS every 4 months. The most recent releases landed on June 4, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | CertCheck | ExxonMobil PSMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/certcheck/id1523049044/reviews)** | [3.9 (19 ratings)](https://appshunter.io/ios/app/exxonmobil-psms/id6479717943/reviews) |
| Number of ratings | 2 | **19** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 105 MB | 178 MB |
| Requires iOS | **12.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [InfoChip Systems Inc.](https://appshunter.io/developer/885588364) | [Exxon Mobil Corporation](https://appshunter.io/developer/528788995) |

## What reviewers say

### CertCheck

[App page](https://appshunter.io/ios/app/certcheck/id1523049044)

This app simplifies pre-job equipment safety checks by accessing a database of safety certificates. It helps users quickly determine if equipment is certified for use and allows them to flag items needing inspection.

**Highlights:** Equipment safety certificate verification, Real-time certification status, Flag equipment for inspection, Access to safety inspection data, Part of TESSALink CertNet suite

**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 CertCheck free?

CertCheck 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, CertCheck or ExxonMobil PSMS?

CertCheck is rated higher. CertCheck averages 5.0 out of 5 from 2 ratings, while ExxonMobil PSMS averages 3.9 from 19 ratings.

### Do CertCheck or ExxonMobil PSMS have ads?

Neither CertCheck nor ExxonMobil PSMS shows ads.

### Which is updated more often, CertCheck or ExxonMobil PSMS?

CertCheck ships an update every 2 months, and ExxonMobil PSMS every 4 months. Most recently, CertCheck was updated on June 4, 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.*