DSI vs idd cologne
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DSI
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Willkommen in der digitalen Welt von "DSI - Dr.-Ing. Schmolke Immobilien e.K."! In Ihrem Kundeportal erhalten Sie alle relevanten Informationen rund um Ihre Immobilie! Funktionen: • Digitales schwarzes Brett • Passwortgeschützter Zugang • Übersicht von wichtigen Ansprechpartnern und Notfallkontakten • Zugriff auf wichtige Mitteilungen und Termine • Jederzeit Zugriff auf relevante Dokumente • Abwicklung von (Schadens-)Meldungen, Schlüsselbestellungen etc. direkt via Smartphone inkl. aktueller Bearbeitungsstatus • Und weitere nützliche Fuktionen, die Ihren Alltag erleichtern
idd cologne
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The Mobile Guide to idd cologne, taking place October 27–31, 2026, is the interactive event guide from Koelnmesse GmbH. idd cologne is the industry event for exclusive interior design, where leading premium brands connect to design professionals and design-savvy private visitors. With its innovative urban approach, idd cologne brings creativity and premium interior design directly to the city. This functional and user-friendly app makes it easier for you to prepare your visit. PARTICIPANTS | PRODUCTS | INFORMATIONS The app offers a detailed directory of participants, events and products as well as all exhibitor locations. Find information about the arrival and departure, as well as accommodation in Cologne. PLAN YOU VISIT Find exhibitors by name, country and product groups and plan your visit. Get information about the event program. NOTIFICATIONS Get notification for short-term program changes and other short-term organizational changes directly to your device. NETWORKING Networking allows participants to exchange contact information in the app before, during and after the event. DATA PROTECTION The Mobile Guide requires appropriate permissions for "Add to address book" and "Add to Calendar" and will ask for that first time you use these functions. Contact data and appointments are stored at any time only local on your device. HELP & SUPPORT Send email for support to idd-cologne@visitor.koelnmesse.de. IMPORTANT NOTICE BEFORE INSTALLATION After installation the app will once download compressed data for exhibitors, extract and import them. Please make sure you have an adequate Internet connection and have some patience during this first import. This procedure can take up to one minute for the first time and should not be interrupted.
Screenshots
Verdict
The clearest difference is update cadence: idd cologne at every 9 days against DSI's every 13 months. DSI's advantage is iOS requirement (12.0 vs 17.7). 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.
DSI ships an update every 13 months, idd cologne every 9 days. The most recent releases landed on September 10, 2026 and September 2, 2026 respectively.
| Parameter | DSI | idd cologne |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.7 |
| Further details — not scored | ||
| Size | 33 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | Dr.-Ing. Schmolke Immobilien GmbH | Koelnmesse GmbH |
In-app purchases
DSI
No in-app purchases
idd cologne
No in-app purchases
