# MobileOp vs Call Shield

The clearest difference is price: Call Shield at Free against MobileOp's $0.99. Call Shield also leads on update cadence (every 2 weeks vs every 3 months). MobileOp's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads there is nothing between them.

Call Shield is free to download; MobileOp costs $0.99 up front. Call Shield sells 1 in-app purchase, starting at $0.99 per month. MobileOp asks for nothing beyond the download.

MobileOp ships an update every 3 months, Call Shield every 2 weeks. The most recent releases landed on September 3, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | MobileOp | Call Shield |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.6 (5 ratings)](https://appshunter.io/ios/app/mobileop/id518637987/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 32 MB | 17 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Marco Lombardo](https://appshunter.io/developer/518638030) | [Orazio Dell'Osa](https://appshunter.io/developer/1886840582) |

## 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


### Call Shield

[App page](https://appshunter.io/ios/app/call-shield-spam-blocker/id6767889573)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Call Shield Pro Monthly | $0.99 | per month |


## Frequently asked questions

### Is MobileOp free?

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

### Is Call Shield free?

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

### Do MobileOp or Call Shield have ads?

Neither MobileOp nor Call Shield shows ads.

### Which is updated more often, MobileOp or Call Shield?

MobileOp ships an update every 3 months, and Call Shield every 2 weeks. Most recently, MobileOp was updated on September 3, 2026 and Call Shield on September 10, 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.*