S4 vs Din Ventilation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S4
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The S4-Alarm™ app allows you to remotely arm and disarm your SikkertHjem™ alarm system model 1.0-4.4 (obsolete models) directly from your iPhone®. If you own a new S6evo™ or S5-Touch™ alarm system, please use the dedicated app to your specific system instead.
Din Ventilation
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Din Ventilation – Full Control Over Your Air Pro With the Din Ventilation app, you can easily control your Air Pro v1.0 directly from your smartphone – no matter where you are. Adjust ventilation settings, schedule operating times, and optimize your indoor climate to always maintain the perfect air quality in your home. Automatic Scheduling – Plan ventilation settings based on summer and winter conditions so your Air Pro automatically adjusts humidity control, heat recovery, and operating schedules. Remote Control – Turn on, off, or adjust settings even when you're not home. Perfect for preparing your home before you arrive. Humidity Control – Set the unit to automatically remove moisture when humidity levels exceed your preferred threshold. Ideal for preventing mold and improving air quality. CO₂ Monitoring – View real-time CO₂ levels in your home and let the app automatically adjust ventilation to ensure a healthy indoor climate. Energy-Saving Mode – Optimize your Air Pro’s energy consumption by adjusting operation as needed, such as turning it off at night or reducing ventilation when you're away. Group Control – Manage multiple units at once to create a balanced air exchange throughout your home. With the Din Ventilation app, you don’t just get a smarter way to control your ventilation – you get a healthier, more energy-efficient home with optimal air quality all year round. Download the app now and take full control of your Air Pro!
Screenshots
Verdict
The clearest difference is iOS requirement: S4 at 8.0 against Din Ventilation's 13.0. On price, ads, 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.
| Parameter | S4 | Din Ventilation |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 50 MB | 182 MB |
| Age rating | 4+ | 4+ |
| Developer | SikkertHjem ApS | Aoc Invest ApS |
In-app purchases
S4
No in-app purchases
Din Ventilation
No in-app purchases









