PSI Access vs Decision Engine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PSI Access
Manage inspections, testing, and preventative maintenance tasks from your mobile device. Access process safety information, create action items, and generate safe work permits in the field. The app supports offline use and automatically syncs data.
- Execute inspections, testing, and maintenance tasks
- Create safe work permits
- Access Process Safety Information (PSI)
- Offline data sync
- Assign and receive task notifications
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How it Works: When in the web application, Inspections, Testing, and Preventative maintenance tasks can be created and assigned to the responsible user. The user will receive notification when the upcoming items are due and is able to sign in to the mobile app and view all assigned tasks as well execute them via mobile device while in the field. The user can access all Process Safety Information (PSI) associated with the equipment that they are inspecting or testing, create action items, as well as create safe work permits via the mobile app. Features: Execute inspections, testing, preventative maintenance tasks, and create safe work permits all from a mobile device that syncs offline data automatically. Available for online and offline use Syncs offline data automatically Benefits: Mechanical Integrity is an element of PSM that is critical to prolonging life of the process and preventing hazardous releases or spills. The mobile app is designed to track all maintenance tasks as well as decrease the amount of time it takes to document all portions involved with
Decision Engine
This app offers a fun and fast way to gather feedback on any topic, serving as an alternative to traditional surveys. Users can make choices, view instant results, and compare or share them. It's ideal for picking preferences, creating lists, and understanding opinions.
- Collect customer feedback
- Gather employee opinions
- Create preference lists
- Instant results
- Shareable outcomes
- Fun alternative to surveys
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An awesome alternative to boring surveys and polls, Decision Engine is a quick, fun game that collects feedback from customers, employees, friends, and family — on any topic. Discover all your options, make your picks, then get your results instantly so you can compare or share them with others. Decision Engine is a great way to pick your preferences, create to-do lists, and find out what people – and you – really think and feel.
Screenshots
Verdict
The clearest difference is rating: Decision Engine at 5.0 against PSI Access's 4.0. Decision Engine also leads on iOS requirement (13.0 vs 15.0). PSI Access's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Decision Engine holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: PSI Access has 8 ratings behind it against 1, so its average is the more settled of the two.
PSI Access ships an update every 6 weeks, Decision Engine monthly. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.
| Parameter | PSI Access | Decision Engine |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 152 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | PSSolutions-LLC | 3DOFT Ventures LLC |
Customer experience
PSI Access
Decision Engine
In-app purchases
PSI Access
No in-app purchases
Decision Engine
No in-app purchases
