# Monitoring vs ieRetail Margin Calculator

The clearest difference is price: Monitoring at Free against ieRetail Margin Calculator's $3.99. Monitoring also leads on update cadence (every 3 months vs every 34 months). ieRetail Margin Calculator's advantage is review sentiment (100% vs 67%). On ads, in-app purchases, monetization model and device support there is nothing between them.

Monitoring is free to download; ieRetail Margin Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Monitoring ships an update every 3 months, ieRetail Margin Calculator every 34 months. The most recent releases landed on September 21, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Monitoring | ieRetail Margin Calculator |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 34 months |
| Monetization | Free | Free |
| Size | 9 MB | 33 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [New Zealand Computing Solutions](https://appshunter.io/developer/375256667) | [i.e.Retail Limited](https://appshunter.io/developer/662033918) |

## What reviewers say

### Monitoring

[App page](https://appshunter.io/ios/app/monitoring/id375256664)

Control and monitor your home or business alarm system remotely from your iPhone. View real-time events, manage user access, and receive instant notifications for alarm activations. Includes a mobile panic alarm feature with GPS location sharing.

**Highlights:** Remote alarm system status view, Real-time event logging, User access history, Set/Unset alarm functionality, Multiple system management, Direct communication with monitoring station, Mobile panic alarm with GPS

**In-app purchases:** none


### ieRetail Margin Calculator

[App page](https://appshunter.io/ios/app/ieretail-margin-calculator/id1534508185)

This app helps buyers and sellers quickly calculate gross profit, margin, and markup for individual products. Easily adjust variables like cost or sell price to see how other figures change, and manage tax rates for accurate calculations.

**Highlights:** Calculate gross profit, margin, and markup, Adjust variables to see changes, Calculate sell and cost prices, Track profit in percentages or dollars, Manage tax (GST/VAT) rates, Store product data locally

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

**In-app purchases:** none


## Frequently asked questions

### Is Monitoring free?

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

### Is ieRetail Margin Calculator free?

ieRetail Margin Calculator costs $3.99, with no in-app purchases.

### Do Monitoring or ieRetail Margin Calculator have ads?

Neither Monitoring nor ieRetail Margin Calculator shows ads.

### Which is updated more often, Monitoring or ieRetail Margin Calculator?

Monitoring ships an update every 3 months, and ieRetail Margin Calculator every 34 months. Most recently, Monitoring was updated on September 21, 2026 and ieRetail Margin Calculator on September 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.*