# OntComm vs ProMasters Only

The clearest difference is price: OntComm at Free against ProMasters Only's $69.99. ProMasters Only's advantage is rating (4.5 vs 4.0) and review sentiment (79% vs 50%). On update cadence, ads, in-app purchases and device support there is nothing between them.

OntComm is free to download; ProMasters Only costs $69.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ProMasters Only holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: ProMasters Only has 21 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of OntComm's written reviews are positive against 79% of ProMasters Only's.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | OntComm | ProMasters Only |
| --- | --- | --- |
| Price | **Free** | $69.99 |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/ontcomm/id1103636966/reviews) | **[4.5 (21 ratings)](https://appshunter.io/ios/app/promasters-only/id6737483353/reviews)** |
| Number of ratings | 4 | **21** |
| Positive reviews | 50.0% of reviews | **78.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | **Free** | Paid |
| Size | 14 MB | 27 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ICS Software LLC](https://appshunter.io/developer/1103636965) | [Kip Amore](https://appshunter.io/developer/1776662732) |

## What reviewers say

### OntComm

[App page](https://appshunter.io/ios/app/ontcomm/id1103636966)

This app provides incident situational awareness for emergency responders. It allows users to access critical information and communicate effectively during critical events. Designed for quick access to vital data in high-pressure situations.

**Highlights:** Incident situational awareness, Critical information access, Effective communication, Emergency response support

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

**In-app purchases:** none


### ProMasters Only

[App page](https://appshunter.io/ios/app/promasters-only/id6737483353)

This app provides diagnostic tools and information specifically for Ram ProMaster vans. It offers real-time gauge monitoring, trouble code explanations, and a repair log, requiring a separate OBD dongle purchase.

**Highlights:** Trouble code reader with explanations, Real-time gauge monitoring (Voltage, Oil Pressure, Coolant Temp, etc.), Transmission fluid temperature gauge, Oil change and repair log book, Repair shop finder, Technical library with videos, Fluids and consumables specifications

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

**In-app purchases:** none


## Frequently asked questions

### Is OntComm free?

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

### Is ProMasters Only free?

ProMasters Only costs $69.99, with no in-app purchases.

### Which has better reviews, OntComm or ProMasters Only?

ProMasters Only is rated higher. OntComm averages 4.0 out of 5 from 4 ratings, while ProMasters Only averages 4.5 from 21 ratings.

### Do OntComm or ProMasters Only have ads?

Neither OntComm nor ProMasters Only shows ads.

### Which is updated more often, OntComm or ProMasters Only?

OntComm ships an update every 7 months, and ProMasters Only every 7 months. Most recently, OntComm was updated on November 2, 2026 and ProMasters Only on November 4, 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.*