Comparison

Simon iO vs Fermax See

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

Head to head
About

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.

Highlights
  • Configure iO devices and experiences
  • Control lights and blinds
  • Receive notifications
  • Schedule routines
  • Adjust lighting levels
  • Power control for devices
Features
Read full description

* [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

About

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.

Highlights
  • 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
Features
Read full description

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

Simon iO4 screens
Fermax See4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Simon iO versus Fermax See: the parameters behind the verdict, then further details
ParameterSimon iOFermax See
PriceFreeFree
Rating1.0 (1 ratings)5.0 (2 ratings) — better
Positive reviews28.6% of reviews—
Number of ratings12 — better
Update frequencyEvery 3 months — betterEvery 11 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.013.0 — better
Further details — not scored
Size91 MB76 MB
Age rating4+4+
DeveloperSimonFERMAX ELECTRONICA, S.A.

Customer experience

Simon iO

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews21 reviews
Positive28.6%
Neutral14.3%
Negative57.1%

Fermax See

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Simon iO

No in-app purchases

None

Fermax See

No in-app purchases

Questions

Is Simon iO free?
Simon iO is free to download, with no in-app purchases.
Is Fermax See free?
Fermax See is free to download, with no in-app purchases.
Which has better reviews, Simon iO or Fermax See?
Fermax See is rated higher. Simon iO averages 1.0 out of 5 from 1 ratings, while Fermax See averages 5.0 from 2 ratings.
Do Simon iO or Fermax See have ads?
Simon iO shows ads; Fermax See does not.
Which is updated more often, Simon iO or Fermax See?
Simon iO ships an update every 3 months, and Fermax See every 11 months. Most recently, Simon iO was updated on July 7, 2026 and Fermax See on July 8, 2026.

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