Comparison

Fenster vs InstallationPro

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

Head to head

About

Fenster

Features

Read full description

ISOGON FENSTER Der 1. Fensterkonfigurator mit Tools für das iPhone. ISOGON Fenstersysteme GmbH bietet Ihnen mit dem ISOGON Fenster-App folgende, kostenlose Features: • KONFIGURATOR Vom Profil bis zur Sprosse. Kinderleichtes Konfigurieren von Fenstern • FÄCHER Farb-, Dekor- und Glasfächer Der Profi-Fächer in der Hosentasche • REALITY GLAS (zum Patent angemeldet): Verschiedene Glassorten in Echtzeit durch die iPhone-Kamera betrachten • TOOLS Glasdickenmesser (GDM) Scheibenzwischenraummesser (SZR) Beschichtungsprüfer (LOW-E) Wasserwaage mit Lineal • ENERGIESPARER Sehen Sie, wie viel Bares Sie einsparen können und zum Umweltschutz mit beitragen. Fenster, die Ihr Zuhause vollenden. www.isogon.com

About

InstallationPro

Read full description

Maximize Your Efficiency in Assembly Work: - All your tasks at a glance: Receive your tasks directly on your smartphone – always up-to-date and easily accessible. - Seamless navigation: Integrated navigation features help you reach your next assignment quickly and stress-free. - Digital status updates: Send progress updates to your client conveniently and paper-free. - Instant access to manuals: View detailed assembly instructions directly within the app – anytime, anywhere. - Comprehensive documentation: Record your work with photos, interactive multiple-choice questions, and descriptive text fields. - Innovative window scanning: Use your device’s NFC antenna to scan windows quickly and accurately.

Screenshots

Fenster4 screens

InstallationPro3 screens

Verdict

The call

The clearest difference is update cadence: InstallationPro at every 4 weeks against Fenster's every 8 months. Fenster's advantage is iOS requirement (8.0 vs 15.0). 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

Fenster ships an update every 8 months, InstallationPro every 4 weeks. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 4 level

Fenster versus InstallationPro: the parameters behind the verdict, then further details
Parameter	Fenster	InstallationPro
Price	Free	Free
Update frequency	Every 8 months	Every 4 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	8.0 — better	15.0
Further details — not scored
Size	61 MB	101 MB
Age rating	4+	4+
Developer	Isogon Fenstersysteme GmbH	Digital Building Solutions GmbH

In-app purchases

None

Fenster

No in-app purchases

None

InstallationPro

No in-app purchases

Questions

Is Fenster free?

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

Is InstallationPro free?

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

Do Fenster or InstallationPro have ads?

Neither Fenster nor InstallationPro shows ads.

Which is updated more often, Fenster or InstallationPro?

Fenster ships an update every 8 months, and InstallationPro every 4 weeks. Most recently, Fenster was updated on September 30, 2026 and InstallationPro on October 2, 2026.