# By vs OIKOS Arckey 2.0

The clearest difference is review sentiment: By at 48% against OIKOS Arckey 2.0's 0%. By also leads on rating (3.9 vs 3.0) and ratings volume (12 vs 2). 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.

By holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: By has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 48% of By's written reviews are positive against 0% of OIKOS Arckey 2.0's.

By ships an update every 9 months, OIKOS Arckey 2.0 every 5 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | By | OIKOS Arckey 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (12 ratings)](https://appshunter.io/ios/app/by-camera/id972693204/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/oikos-arckey-20/id1457339538/reviews) |
| Number of ratings | **12** | 2 |
| Positive reviews | **48.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 127 MB | 147 MB |
| Requires iOS | **12.1** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Vimar S.p.A.](https://appshunter.io/developer/401438010) | [Oikos Venezia S.r.l.](https://appshunter.io/developer/1457339537) |

## What reviewers say

### 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


### OIKOS Arckey 2.0

[App page](https://appshunter.io/ios/app/oikos-arckey-20/id1457339538)

Control Oikos doors with Arckey system remotely via Bluetooth or Gateway. Manage user access, set time slots, and view event logs. Update lock firmware and send technical data for support.

**Highlights:** Remote door opening via Bluetooth/Gateway, User access management, Time slot assignment, Event logging and sharing, Firmware updates, Technical log submission

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is By free?

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

### Is OIKOS Arckey 2.0 free?

OIKOS Arckey 2.0 is free to download, with no in-app purchases.

### Which has better reviews, By or OIKOS Arckey 2.0?

By is rated higher. By averages 3.9 out of 5 from 12 ratings, while OIKOS Arckey 2.0 averages 3.0 from 2 ratings.

### Do By or OIKOS Arckey 2.0 have ads?

Neither By nor OIKOS Arckey 2.0 shows ads.

### Which is updated more often, By or OIKOS Arckey 2.0?

By ships an update every 9 months, and OIKOS Arckey 2.0 every 5 months. Most recently, By was updated on November 2, 2026 and OIKOS Arckey 2.0 on November 2, 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.*