# PTSI Mobile vs MUST Safety Program

The clearest difference is rating: MUST Safety Program at 3.0 against PTSI Mobile's 1.5. MUST Safety Program also leads on iOS requirement (13.0 vs 15.5). PTSI Mobile's advantage is ratings volume (13 vs 3). 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.

MUST Safety Program holds the better App Store score, 3.0 against 1.5. Both are backed by a comparable volume of ratings — 13 and 3 respectively.

PTSI Mobile ships an update every 6 months, MUST Safety Program every 9 months. Both last shipped on October 9, 2026.

## The numbers

| Metric | PTSI Mobile | MUST Safety Program |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (13 ratings)](https://appshunter.io/ios/app/ptsi-mobile/id1347986828/reviews) | **[3.0 (3 ratings)](https://appshunter.io/ios/app/must-safety-program/id1530044252/reviews)** |
| Number of ratings | **13** | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 66 MB | 15 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mosaic Learning, Inc.](https://appshunter.io/developer/518404678) | [Copper Range, Inc.](https://appshunter.io/developer/896945766) |

## 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


### MUST Safety Program

[App page](https://appshunter.io/ios/app/must-safety-program/id1530044252)

This app provides access to safety training and drug screening services for the construction industry. Users can search for reports, order testing, find collection sites, and review data to promote a zero-injury work environment.

**Highlights:** Access MUST Report Card, Order testing, Search collection sites, Review safety data, Safety awareness training, Drug screening

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PTSI Mobile free?

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

### Is MUST Safety Program free?

MUST Safety Program is free to download, with no in-app purchases.

### Which has better reviews, PTSI Mobile or MUST Safety Program?

MUST Safety Program is rated higher. PTSI Mobile averages 1.5 out of 5 from 13 ratings, while MUST Safety Program averages 3.0 from 3 ratings.

### Do PTSI Mobile or MUST Safety Program have ads?

Neither PTSI Mobile nor MUST Safety Program shows ads.

### Which is updated more often, PTSI Mobile or MUST Safety Program?

PTSI Mobile ships an update every 6 months, and MUST Safety Program every 9 months. Most recently, PTSI Mobile was updated on October 9, 2026 and MUST Safety Program on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*