# PTSI Mobile vs Aurelion Sentinel

The clearest difference is rating: Aurelion Sentinel at 5.0 against PTSI Mobile's 1.5. Aurelion Sentinel also leads on update cadence (weekly vs every 6 months). PTSI Mobile's advantage is in-app purchases (none vs 4) and ratings volume (13 vs 3). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Aurelion Sentinel sells 4 in-app purchases, starting at $9.99 per month. PTSI Mobile asks for nothing beyond the download.

Aurelion Sentinel holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 13 and 3 respectively.

PTSI Mobile ships an update every 6 months, Aurelion Sentinel weekly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | PTSI Mobile | Aurelion Sentinel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (13 ratings)](https://appshunter.io/ios/app/ptsi-mobile/id1347986828/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/aurelion-sentinel/id6794353207/reviews)** |
| Number of ratings | **13** | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Free | Free |
| Size | 66 MB | 3 MB |
| Requires iOS | **15.5** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Mosaic Learning, Inc.](https://appshunter.io/developer/518404678) | [Aurelion Group LLC](https://appshunter.io/developer/6794353209) |

## What reviewers say

### PTSI Mobile

[App page](https://appshunter.io/ios/app/ptsi-mobile/id1347986828)

This app serves as an information hub for individuals in the organized electrical trade. It provides official information in coordination with industry organizations.

**Highlights:** Official information hub, For organized electrical trade, Industry coordination, ProTech Skills Institute app

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

**In-app purchases:** none


### Aurelion Sentinel

[App page](https://appshunter.io/ios/app/aurelion-sentinel/id6794353207)

This platform leverages AI to help professionals identify hazards, manage incidents, and ensure compliance. It offers tools for inspections, risk analysis, and regulatory references, streamlining safety and field operations.

**Highlights:** AI-Assisted Assessments, AI Assessment Generator, AI Camera & Visual Evidence, Incident & OSHA Tracking, AI SDS Locator, Centralized Regulations Library, Risk & Analytics Tools

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aurelion Basic Monthly | $9.99 | per month |
| Aurelion Pro | $14.99 | per month |
| Aurelion Basic Pass | $14.99 | one-time |
| Aurelion Pro Pass | $19.99 | one-time |


## Frequently asked questions

### Is PTSI Mobile free?

PTSI Mobile is free to download, with no in-app purchases.

### Is Aurelion Sentinel free?

Aurelion Sentinel is free to download, with in-app purchases available.

### Which has better reviews, PTSI Mobile or Aurelion Sentinel?

Aurelion Sentinel is rated higher. PTSI Mobile averages 1.5 out of 5 from 13 ratings, while Aurelion Sentinel averages 5.0 from 3 ratings.

### Do PTSI Mobile or Aurelion Sentinel have ads?

Neither PTSI Mobile nor Aurelion Sentinel shows ads.

### Which is updated more often, PTSI Mobile or Aurelion Sentinel?

PTSI Mobile ships an update every 6 months, and Aurelion Sentinel weekly. Most recently, PTSI Mobile was updated on October 24, 2026 and Aurelion Sentinel on October 29, 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.*