# iDefender vs By

The clearest difference is review sentiment: iDefender at 100% against By's 40%. iDefender also leads on iOS requirement (10.0 vs 12.1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

iDefender ships an update every 10 months, By every 9 months. The most recent releases landed on September 12, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | iDefender | By |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (12 ratings)](https://appshunter.io/ios/app/by-camera/id972693204/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 9 months** |
| Monetization | Free | Free |
| Size | 9 MB | 127 MB |
| Requires iOS | **10.0** | 12.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FRACARRO RADIOINDUSTRIE SRL](https://appshunter.io/developer/1123030778) | [Vimar S.p.A.](https://appshunter.io/developer/401438010) |

## What reviewers say

### iDefender

[App page](https://appshunter.io/ios/app/idefender-e/id900012196)

Manage your anti-theft system locally or remotely with this intuitive app. Arm, disarm, view event logs, and activate home automation functions. Receive video notifications for alarm verification.

**Highlights:** Remote system management, Arm/disarm security system, View event logs, Home automation control, Video alarm verification, Cloud connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### By

[App page](https://appshunter.io/ios/app/by-camera/id972693204)

Access and manage Elvox CCTV video surveillance systems from your smartphone or tablet. View live streams, adjust recorder settings, and create custom screen layouts combining different camera technologies.

**Highlights:** View live IP and AHD camera streams, Adjust DVR/NVR recorder settings, Create custom multi-system screen layouts, QR code pairing for easy setup, Store and share images/videos, Real-time event notifications, Control motorized and speed dome cameras

**In-app purchases:** none


## Frequently asked questions

### Is iDefender free?

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

### Is By free?

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

### Do iDefender or By have ads?

Neither iDefender nor By shows ads.

### Which is updated more often, iDefender or By?

iDefender ships an update every 10 months, and By every 9 months. Most recently, iDefender was updated on September 12, 2026 and By on September 19, 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.*