Comparison

FlowCheck vs School

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

Head to head

About

FlowCheck

Features

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Full transparency at all times about your TROX drive solution and the operation of your system. The TROX Flow Check app turns your smartphone into a wireless on-site control for the latest generation of VAV, flap and valve actuators! Efficient commissioning, quick functional testing in operation, handy and always ready for service. Easily adapt when used. Document and send the setting and operating data.

About

School

Features

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Die innovative Möglichkeit ihr Lüftungsgerät „School AHU“ zu bedienen. Mit der intuitiven Benutzeroberfläche können Sie ihr Lüftungsgerät bedienen sowie schnell und einfach in Betrieb nehmen. Verfügbare Funktionen: - Ein- und Ausschalten der Lüftungsanlage - Einstellen der Lüftungsstufen - Timer - Wochenprogramm - Einstellen der Zulufttemperatur ...und viele weitere Funktionen Die App ist mit den folgenden Systemair Lüftungsanlagen kompatibel - Alle Lüftungsanlagen der Serie "School-AHU"

Screenshots

FlowCheck4 screens

School4 screens

Verdict

The call

The clearest difference is update cadence: School at every 3 weeks against FlowCheck's every 15 months. School also leads on iOS requirement (11.0 vs 16.0). 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

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

FlowCheck ships an update every 15 months, School every 3 weeks. The most recent releases landed on September 9, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 4 level

FlowCheck versus School: the parameters behind the verdict, then further details
Parameter	FlowCheck	School
Price	Free	Free
Update frequency	Every 15 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.0	11.0 — better
Further details — not scored
Size	15 MB	25 MB
Age rating	4+	4+
Developer	TROX GmbH	Systemair Production AB

In-app purchases

None

FlowCheck

No in-app purchases

None

School

No in-app purchases

Questions

Is FlowCheck free?

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

Is School free?

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

Do FlowCheck or School have ads?

Neither FlowCheck nor School shows ads.

Which is updated more often, FlowCheck or School?

FlowCheck ships an update every 15 months, and School every 3 weeks. Most recently, FlowCheck was updated on September 9, 2026 and School on October 12, 2026.