Comparison

iDefender vs By

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iDefender

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
Read full description

iDefender is the Fracarro app dedicated to users who want to manage their own anti-theft system either locally or remotely in a simple and intuitive way. Using the optional module MOD-LAN or MOD-LAN EVO, the app allows you to control all DEFENDER control panels via the new FRACARRO CLOUD, with every internet provider and without requiring changes to your router configuration. Thanks to iDefender and Fracarro Cloud, you can arm and disarm your security system either totally or partially, as Master or custom user. You can also view the event log and activate/deactivate your control panel outputs to enable home automation functions. With the new alarm video verification you can now also receive video notifications from your security system to verify what caused an alarm. New features require DEFENDER Ver 2.9 / DEFENDER HYBRID Ver 4.4 and MOD-LAN / MOD-LAN EVO Ver 3.0 or more recent versions.

About

By

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
Read full description

By-camera lets you view images from all Elvox CCTV video surveillance systems on your smartphone and tablet, in both IP and AHD technology; it is designed to manage new and existing systems; the application allows you to adjust certain settings on video recorders (DVR and NVR) and create favourite screens by combining into a single screen video streams originating from several systems with different technologies, analogue, AHD, IP and IP cameras. Main characteristics: • Simply pair to a new system by scanning the QR code, which is also used to rapidly share with other smartphones without having to access the recorder again. • Optimise viewing of recordings thanks to operation in both vertical and horizontal mode better to exploit the size of the screen. • Store and share images and videos on your smartphone. • Quickly navigate through recordings, the events are easy to recognise with the bar featuring a different colour for each event, supported also by preview displays. • Receive constant feedback on what is happening in the system, with notifications in real time. • Control and move motorised and speed dome cameras. • View and manage the fisheye cameras with 5 different dedicated modes.

Screenshots

iDefender4 screens
By4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
iDefender versus By: the parameters behind the verdict, then further details
ParameteriDefenderBy
PriceFreeFree
Rating—3.9 (12 ratings) — better
Positive reviews100.0% of reviews — better40.0% of reviews
Number of ratings—12 — better
Update frequencyEvery 10 monthsEvery 9 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better12.1
Further details — not scored
Size9 MB127 MB
Age rating4+4+
DeveloperFRACARRO RADIOINDUSTRIE SRLVimar S.p.A.

Customer experience

iDefender

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

By

All ratings12 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

In-app purchases

None

iDefender

No in-app purchases

None

By

No in-app purchases

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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