Simon iO vs Fermax See
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simon iO
Control your smart home devices, including lights and blinds, from anywhere. Receive notifications, schedule routines, and customize device functionalities like lighting levels and power control. This app enhances your iO universe with a world of possibilities.
- Configure iO devices and experiences
- Control lights and blinds
- Receive notifications
- Schedule routines
- Adjust lighting levels
- Power control for devices
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* [IMPORTANT] This application is only compatible with the new HUB PRO iO (installations from 2020) The Simon iO app allows you to easily configure this entire new iO universe: from the iO devices, to the desired experiences. Experiences that you can change as many times as you want, since the process is really simple. Control lights, blinds and weather from inside and outside the home, receive notifications and schedule schedules will also be possible from the Simon iO app. Increasing the functionalities of your iO devices such as soft lighting of lights, regulation levels, beacons, power off delay and power control will also be possible. In short, a world of possibilities that are now at your fingertips. For further information please contact with: sat@simon.es
Fermax See
Monitor your video door entry system remotely. Answer calls, unlock doors, and view live camera feeds from your smartphone or tablet, even when you're away from home. Grant temporary access to guests.
- Answer video door entry calls remotely
- Unlock doors from smartphone/tablet
- Activate outdoor and security cameras
- View call history with images/videos
- Share access with family and friends
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With Fermax See-U you can answer calls from your See-U WiFi video door entry system and open the door from your smartphone or tablet. PRETEND YOU ARE AT HOME Answer the video door entry calls and open the door from anywhere with your mobile phone. You can also activate the outdoor camera on the outdoor panel or view the security cameras. SEE WHO CALLED View images and videos of people who have called while you were not at home. SHARE ACCESS Invite family and friends to receive calls and open the door for you without them needing a copy of your keys.
Screenshots
Verdict
The clearest difference is rating: Fermax See at 5.0 against Simon iO's 1.0. Fermax See also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Simon iO's advantage is update cadence (every 3 months vs every 11 months). On price, ratings volume, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Fermax See holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Simon iO ships an update every 3 months, Fermax See every 11 months. The most recent releases landed on July 7, 2026 and July 8, 2026 respectively.
| Parameter | Simon iO | Fermax See |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 3 months — better | Every 11 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 91 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | Simon | FERMAX ELECTRONICA, S.A. |
Customer experience
Simon iO
Fermax See
In-app purchases
Simon iO
No in-app purchases
Fermax See
No in-app purchases








