# MobileOp vs CIDR

The clearest difference is price: CIDR at Free against MobileOp's $0.99. CIDR also leads on rating (5.0 vs 2.6) and update cadence (every 3 weeks vs every 3 months). MobileOp's advantage is in-app purchases (none vs 1) and ratings volume (5 vs 1). On ads, device support and iOS requirement there is nothing between them.

CIDR is free to download; MobileOp costs $0.99 up front. CIDR sells 1 one-off in-app purchase. MobileOp asks for nothing beyond the download.

CIDR holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: MobileOp has 5 ratings behind it against 1, so its average is the more settled of the two.

MobileOp ships an update every 3 months, CIDR every 3 weeks. The most recent releases landed on September 3, 2026 and June 30, 2026 respectively.

## The numbers

| Metric | MobileOp | CIDR |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.6 (5 ratings)](https://appshunter.io/ios/app/mobileop/id518637987/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cidr/id1564239813/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 32 MB | 23 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marco Lombardo](https://appshunter.io/developer/518638030) | [ao-system, Inc.](https://appshunter.io/developer/1338624340) |

## What reviewers say

### MobileOp

[App page](https://appshunter.io/ios/app/mobileop/id518637987)

This app allows users to manage and monitor Zabbix servers directly from their mobile devices. It provides real-time status updates for hosts, triggers, and events, with the ability to edit configurations and execute scripts remotely. Enhanced features include QR code scanning for host identification and photo attachments with GPS data.

**Highlights:** Manage unlimited Zabbix servers, Monitor active triggers and events, Real-time host and item status, Edit trigger and item configurations, Execute host-based scripts, Push notification alerts, QR code host scanning

**Features:** Vision Pro support

**In-app purchases:** none


### CIDR

[App page](https://appshunter.io/ios/app/cidr/id1564239813)

This utility calculates IP address ranges from an IP address and subnet mask. It supports IPv4 calculations, including prefix display, address range counts, and bit notation. Useful for quick CIDR notation checks and subnet mask conversions.

**Highlights:** IP address range calculation, Subnet mask to CIDR conversion, IPv4 prefix display, Number of address ranges, Bit notation display, Quick reference table

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is MobileOp free?

MobileOp costs $0.99, with no in-app purchases.

### Is CIDR free?

CIDR is free to download, with in-app purchases available.

### Which has better reviews, MobileOp or CIDR?

CIDR is rated higher. MobileOp averages 2.6 out of 5 from 5 ratings, while CIDR averages 5.0 from 1 ratings.

### Do MobileOp or CIDR have ads?

Neither MobileOp nor CIDR shows ads.

### Which is updated more often, MobileOp or CIDR?

MobileOp ships an update every 3 months, and CIDR every 3 weeks. Most recently, MobileOp was updated on September 3, 2026 and CIDR on June 30, 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.*