# Trail Explorer by CTRMA vs PM Systems Conference App

The clearest difference is device support: PM Systems Conference App at 3 against Trail Explorer by CTRMA's 1. 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.

Trail Explorer by CTRMA ships an update every 3 months, PM Systems Conference App every 2 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Trail Explorer by CTRMA | PM Systems Conference App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/trail-explorer-by-ctrma/id1490349687/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 412 MB | 49 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chocolate Milk & Donuts](https://appshunter.io/developer/1490349686) | [Teknowledge Software](https://appshunter.io/developer/348684387) |

## What reviewers say

### Trail Explorer by CTRMA

[App page](https://appshunter.io/ios/app/trail-explorer-by-ctrma/id1490349687)

Explore local trails with interactive augmented reality animations and voice narration in English and Spanish. Discover the history, native flora and fauna, and culture of the Texas Hill Country and Austin's East Side through engaging, educational experiences.

**Highlights:** Augmented Reality animations, Voice narration (English/Spanish), GPS guidance, Photo and social sharing, Educational content on local history and nature

**Features:** macOS Compatibility

**In-app purchases:** none


### PM Systems Conference App

[App page](https://appshunter.io/ios/app/pm-systems-conference-app/id6443735074)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Trail Explorer by CTRMA free?

Trail Explorer by CTRMA is free to download, with no in-app purchases.

### Is PM Systems Conference App free?

PM Systems Conference App is free to download, with no in-app purchases.

### Do Trail Explorer by CTRMA or PM Systems Conference App have ads?

Neither Trail Explorer by CTRMA nor PM Systems Conference App shows ads.

### Which is updated more often, Trail Explorer by CTRMA or PM Systems Conference App?

Trail Explorer by CTRMA ships an update every 3 months, and PM Systems Conference App every 2 months. Most recently, Trail Explorer by CTRMA was updated on October 26, 2026 and PM Systems Conference App on October 27, 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.*