# Ajax PRO vs Napco Prima

The clearest difference is rating: Ajax PRO at 4.7 against Napco Prima's 4.2. Ajax PRO also leads on update cadence (fortnightly vs every 2 months). Napco Prima's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ajax PRO holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 15 and 12 respectively. Written reviews complicate that: 72% of Ajax PRO's written reviews are positive against 75% of Napco Prima's, so the app with the better star average is not the one people write more warmly about.

Ajax PRO ships an update fortnightly, Napco Prima every 2 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Ajax PRO | Napco Prima |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/ajax-pro-tool-for-engineers/id1249276895/reviews)** | [4.2 (12 ratings)](https://appshunter.io/ios/app/napco-prima/id6451138946/reviews) |
| Number of ratings | **15** | 12 |
| Positive reviews | 72.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | Free |
| Size | 656 MB | 58 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ajax Systems Inc](https://appshunter.io/developer/1063166246) | [NAPCO Security Technologies](https://appshunter.io/developer/397342490) |

## What reviewers say

### Ajax PRO

[App page](https://appshunter.io/ios/app/ajax-pro-tool-for-engineers/id1249276895)

This app empowers security system installers and company employees to manage and configure Ajax security systems. It facilitates quick connections, adjustments, and testing of devices, offering extensive control over an unlimited number of security systems, user access, and automation scenarios.

**Highlights:** Administer unlimited security systems, Monitor system status and adjust settings, Manage user access rights, Create objects and connect equipment, Test devices and connect cameras, Customize automation scenarios and security schedules, Connect hubs to monitoring stations

**Features:** Vision Pro support

**In-app purchases:** none


### Napco Prima

[App page](https://appshunter.io/ios/app/napco-prima/id6451138946)

Manage your home's lighting, climate, security cameras, and alarm systems from one place. Receive real-time alerts for security events or family arrivals, and monitor live video feeds with event recording. Control various connected devices like locks and thermostats remotely.

**Highlights:** Remote lighting control, Climate management, Security system arm/disarm, Live video monitoring, Event recording, Instant security alerts, Control connected devices

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ajax PRO free?

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

### Is Napco Prima free?

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

### Which has better reviews, Ajax PRO or Napco Prima?

Ajax PRO is rated higher. Ajax PRO averages 4.7 out of 5 from 15 ratings, while Napco Prima averages 4.2 from 12 ratings.

### Do Ajax PRO or Napco Prima have ads?

Neither Ajax PRO nor Napco Prima shows ads.

### Which is updated more often, Ajax PRO or Napco Prima?

Ajax PRO ships an update fortnightly, and Napco Prima every 2 months. Most recently, Ajax PRO was updated on November 6, 2026 and Napco Prima on November 5, 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.*