Comparison

Key vs E.ON Event 2.0

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

Head to head

★ 1.01 ratingsView app →

About

Key

Transform your iPhone into a mobile ID card for convenient door access. Securely register your credentials and use your phone to open doors, leveraging advanced encrypted transfer technology.

Highlights

Smartphone as mobile ID
Convenient door opening
Secure credential transfer
iPhone integration
Requires Interflex software

Read full description

Your smartphone as a mobile ID card: With the Interflex app "Key", you can conveniently open doors with your iPhone. This is how "Key" works: - Install the app on your iPhone. - Register the app with your access data. - Book with your iPhone to open doors. Thanks to "NetworkOnMobile" technology, we ensure encrypted and secure transfer of the mobile credential to your iPhone. Important: The use of this app requires the use of the Interflex software IF-6040 and suitable badge readers.

About

E.ON Event 2.0

This mobile client provides access to event management features for E.ON's Ventari platform. It allows users to view event details, manage their schedule, see attendee lists, and access their tickets. The app also includes live voting and chat functionalities for enhanced event participation.

Highlights

Event overview
My events management
Agenda and schedule
Participant list
Digital ticket access
Live voting
In-app chat

Features

Read full description

Mobiler Teilnehmerclient für das E.ON Veranstaltungsmanagement Ventari. Features: - Event Übersicht - Meine Events - Agenda - Übersicht der Teilnehmer - Ticket - Allgemeine Veranstaltungsinformationen - Live Voting Integration - Chat Diese App ist eine Erweiterung des E.ON Veranstaltungsmanagements Ventari und benötigt zum Zugriff auf Inhalte einen gültigen Ventari Benutzer.

Screenshots

Key4 screens

E.ON Event 2.04 screens

Verdict

The call

The clearest difference is update cadence: Key at every 4 months against E.ON Event 2.0's every 18 months. E.ON Event 2.0's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and monetization model 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

Key ships an update every 4 months, E.ON Event 2.0 every 18 months. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 8 level

Key versus E.ON Event 2.0: the parameters behind the verdict, then further details
Parameter	Key	E.ON Event 2.0
Price	Free	Free
Rating	—	1.0 (1 ratings) — better
Positive reviews	100.0% of reviews	—
Number of ratings	—	1 — better
Update frequency	Every 4 months — better	Every 18 months
Ads	No	No
In-app purchases	No	No
Monetization	Free	Free
Devices	iPhone, iPod, Apple Watch	iPhone, iPad, iPod
Requires iOS	17.0	14.0 — better
Further details — not scored
Size	18 MB	20 MB
Age rating	4+	4+
Developer	Interflex Datensysteme GmbH	E.ON Group

Customer experience

Key

Written reviews2 reviews

Positive100.0%

Neutral0.0%

Negative0.0%

E.ON Event 2.0

All ratings1 ratings

Positive0.0%

Neutral0.0%

Negative100.0%

In-app purchases

None

Key

No in-app purchases

None

E.ON Event 2.0

No in-app purchases

Questions

Is Key free?

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

Is E.ON Event 2.0 free?

E.ON Event 2.0 is free to download, with no in-app purchases.

Do Key or E.ON Event 2.0 have ads?

Neither Key nor E.ON Event 2.0 shows ads.

Which is updated more often, Key or E.ON Event 2.0?

Key ships an update every 4 months, and E.ON Event 2.0 every 18 months. Most recently, Key was updated on October 2, 2026 and E.ON Event 2.0 on September 27, 2026.